https://github.com/paulwalker-arm updated 
https://github.com/llvm/llvm-project/pull/147086

>From 4efe257b27e6a76740a425ca93dd35cfac38919b Mon Sep 17 00:00:00 2001
From: Paul Walker <paul.wal...@arm.com>
Date: Thu, 26 Jun 2025 17:28:11 +0100
Subject: [PATCH] [Clang][AArch64] Fix feature guards for SVE2p1 builtins
 available in SME{2}.

Builtins that are enabled via +sve2p1 in non-streaming mode and
+sme{2} in streaming mode should also be enabled via +sve+sme{2} in
non-stremaing mode and +sme+sve2p1 in streaming mode.
---
 clang/include/clang/Basic/arm_sve.td          | 25 ++++++++++---------
 .../AArch64/sve2-intrinsics/acle_sve2_revd.c  | 10 +++++---
 .../sve2p1-intrinsics/acle_sve2p1_bfmlsl.c    |  6 ++++-
 .../acle_sve2p1_create2_bool.c                |  8 +++++-
 .../acle_sve2p1_create4_bool.c                |  8 +++++-
 .../sve2p1-intrinsics/acle_sve2p1_dot.c       |  6 ++++-
 .../sve2p1-intrinsics/acle_sve2p1_fclamp.c    | 10 +++++++-
 .../sve2p1-intrinsics/acle_sve2p1_get2_bool.c |  8 +++++-
 .../sve2p1-intrinsics/acle_sve2p1_get4_bool.c |  8 +++++-
 .../sve2p1-intrinsics/acle_sve2p1_psel.c      | 10 ++++----
 .../sve2p1-intrinsics/acle_sve2p1_qcvtn.c     |  8 ++++--
 .../sve2p1-intrinsics/acle_sve2p1_qrshr.c     |  8 ++++--
 .../sve2p1-intrinsics/acle_sve2p1_sclamp.c    | 12 ++++++---
 .../sve2p1-intrinsics/acle_sve2p1_set2_bool.c |  8 +++++-
 .../sve2p1-intrinsics/acle_sve2p1_set4_bool.c |  8 +++++-
 .../sve2p1-intrinsics/acle_sve2p1_uclamp.c    | 12 ++++++---
 .../acle_sve2p1_undef_bool.c                  |  6 ++++-
 .../sve2p1-intrinsics/acle_sve2p1_while_x2.c  |  6 ++++-
 ...reaming-sme-or-nonstreaming-sve-builtins.c | 25 +++++++++----------
 19 files changed, 136 insertions(+), 56 deletions(-)

diff --git a/clang/include/clang/Basic/arm_sve.td 
b/clang/include/clang/Basic/arm_sve.td
index 7c0e5e7310527..ac6f89f9afdbc 100644
--- a/clang/include/clang/Basic/arm_sve.td
+++ b/clang/include/clang/Basic/arm_sve.td
@@ -1325,7 +1325,7 @@ def SVCREATE_3_BF16 : SInst<"svcreate3[_{d}]", "3ddd",  
"b", MergeNone, "", [IsT
 def SVCREATE_4_BF16 : SInst<"svcreate4[_{d}]", "4dddd", "b", MergeNone, "", 
[IsTupleCreate, VerifyRuntimeMode]>;
 }
 
-let SVETargetGuard = "sve2p1", SMETargetGuard = "sme2" in {
+let SVETargetGuard = "sve2p1|sme2", SMETargetGuard = "sve2p1|sme2" in {
   def SVCREATE_2_B : SInst<"svcreate2[_b]", "2dd",   "Pc", MergeNone, "", 
[IsTupleCreate, VerifyRuntimeMode]>;
   def SVCREATE_4_B : SInst<"svcreate4[_b]", "4dddd", "Pc", MergeNone, "", 
[IsTupleCreate, VerifyRuntimeMode]>;
 }
@@ -1350,18 +1350,17 @@ def SVSET_3_BF16 : SInst<"svset3[_{d}]", "33id", "b", 
MergeNone, "", [IsTupleSet
 def SVSET_4_BF16 : SInst<"svset4[_{d}]", "44id", "b", MergeNone, "", 
[IsTupleSet, VerifyRuntimeMode], [ImmCheck<1, ImmCheck0_3>]>;
 }
 
-let SVETargetGuard = "sve2p1", SMETargetGuard = "sme2" in {
+let SVETargetGuard = "sve2p1|sme2", SMETargetGuard = "sve2p1|sme2" in {
   def SVGET_2_B : SInst<"svget2[_b]", "d2i", "Pc", MergeNone, "", [IsTupleGet, 
VerifyRuntimeMode], [ImmCheck<1, ImmCheck0_1>]>;
   def SVGET_4_B : SInst<"svget4[_b]", "d4i", "Pc", MergeNone, "", [IsTupleGet, 
VerifyRuntimeMode], [ImmCheck<1, ImmCheck0_3>]>;
 
   def SVSET_2_B : SInst<"svset2[_b]", "22id", "Pc", MergeNone, "", 
[IsTupleSet, VerifyRuntimeMode], [ImmCheck<1, ImmCheck0_1>]>;
   def SVSET_4_B : SInst<"svset4[_b]", "44id", "Pc", MergeNone, "", 
[IsTupleSet, VerifyRuntimeMode], [ImmCheck<1, ImmCheck0_3>]>;
-}
 
-let SVETargetGuard = "sve2p1", SMETargetGuard = "sme2" in {
   def SVUNDEF_2_B: Inst<"svundef2_b", "2", "Pc", MergeNone, "", [IsUndef, 
VerifyRuntimeMode], []>;
   def SVUNDEF_4_B: Inst<"svundef4_b", "4", "Pc", MergeNone, "", [IsUndef, 
VerifyRuntimeMode], []>;
 }
+
 
////////////////////////////////////////////////////////////////////////////////
 // SVE2 WhileGE/GT
 let SVETargetGuard = "sve2", SMETargetGuard = "sme" in {
@@ -1375,7 +1374,7 @@ def SVWHILEHS_U32 : SInst<"svwhilege_{d}[_{1}]", "Pmm", 
"PcPsPiPl", MergeNone, "
 def SVWHILEHS_U64 : SInst<"svwhilege_{d}[_{1}]", "Pnn", "PcPsPiPl", MergeNone, 
"aarch64_sve_whilehs", [IsOverloadWhileOrMultiVecCvt, VerifyRuntimeMode]>;
 }
 
-let SVETargetGuard = "sve2p1", SMETargetGuard = "sme2"  in {
+let SVETargetGuard = "sve2p1|sme2", SMETargetGuard = "sve2p1|sme2" in {
   def SVWHILEGE_S64_X2 : SInst<"svwhilege_{d}[_{1}]_x2", "2ll", "PcPsPiPl",    
 MergeNone, "aarch64_sve_whilege_x2", [VerifyRuntimeMode]>;
   def SVWHILEGT_S64_X2 : SInst<"svwhilegt_{d}[_{1}]_x2", "2ll", "PcPsPiPl",    
 MergeNone, "aarch64_sve_whilegt_x2", [VerifyRuntimeMode]>;
   def SVWHILEHI_U64_X2 : SInst<"svwhilegt_{d}[_{1}]_x2", "2nn", "PcPsPiPl",    
 MergeNone, "aarch64_sve_whilehi_x2", [VerifyRuntimeMode]>;
@@ -1384,7 +1383,6 @@ let SVETargetGuard = "sve2p1", SMETargetGuard = "sme2"  
in {
   def SVWHILELT_S64_X2 : SInst<"svwhilelt_{d}[_{1}]_x2", "2ll", "PcPsPiPl",    
 MergeNone, "aarch64_sve_whilelt_x2", [VerifyRuntimeMode]>;
   def SVWHILELO_U64_X2 : SInst<"svwhilelt_{d}[_{1}]_x2", "2nn", "PcPsPiPl",    
 MergeNone, "aarch64_sve_whilelo_x2", [VerifyRuntimeMode]>;
   def SVWHILELS_U64_X2 : SInst<"svwhilele_{d}[_{1}]_x2", "2nn", "PcPsPiPl",    
 MergeNone, "aarch64_sve_whilels_x2", [VerifyRuntimeMode]>;
-
 }
 
 
////////////////////////////////////////////////////////////////////////////////
@@ -1999,7 +1997,7 @@ def SVBGRP   : SInst<"svbgrp[_{d}]",   "ddd", "UcUsUiUl", 
MergeNone, "aarch64_sv
 def SVBGRP_N : SInst<"svbgrp[_n_{d}]", "dda", "UcUsUiUl", MergeNone, 
"aarch64_sve_bgrp_x", [VerifyRuntimeMode]>;
 }
 
-let SVETargetGuard = "sve2p1", SMETargetGuard = "sme" in {
+let SVETargetGuard = "sve2p1|sme", SMETargetGuard = "sve2p1|sme" in {
 def SVPSEL_B : SInst<"svpsel_lane_b8",  "PPPm", "Pc", MergeNone, "", 
[VerifyRuntimeMode], []>;
 def SVPSEL_H : SInst<"svpsel_lane_b16", "PPPm", "Ps", MergeNone, "", 
[VerifyRuntimeMode], []>;
 def SVPSEL_S : SInst<"svpsel_lane_b32", "PPPm", "Pi", MergeNone, "", 
[VerifyRuntimeMode], []>;
@@ -2093,16 +2091,18 @@ let SVETargetGuard = "sve2p1", SMETargetGuard = "sme2" 
in {
   defm STNT1 : MultiVecStore<"stnt1">;
 }
 
-let SVETargetGuard = "sve2p1", SMETargetGuard = "sme2" in {
+let SVETargetGuard = "sve2p1|sme2", SMETargetGuard = "sve2p1|sme2" in {
 def SVDOT_X2_S : SInst<"svdot[_{d}_{2}]", "ddhh", "i",  MergeNone, 
"aarch64_sve_sdot_x2", [VerifyRuntimeMode], []>;
 def SVDOT_X2_U : SInst<"svdot[_{d}_{2}]", "ddhh", "Ui", MergeNone, 
"aarch64_sve_udot_x2", [VerifyRuntimeMode], []>;
 def SVDOT_X2_F : SInst<"svdot[_{d}_{2}]", "ddhh", "f",  MergeNone, 
"aarch64_sve_fdot_x2", [VerifyRuntimeMode], []>;
 def SVDOT_LANE_X2_S : SInst<"svdot_lane[_{d}_{2}]", "ddhhi", "i",  MergeNone, 
"aarch64_sve_sdot_lane_x2", [VerifyRuntimeMode], [ImmCheck<3, ImmCheck0_3>]>;
 def SVDOT_LANE_X2_U : SInst<"svdot_lane[_{d}_{2}]", "ddhhi", "Ui", MergeNone, 
"aarch64_sve_udot_lane_x2", [VerifyRuntimeMode], [ImmCheck<3, ImmCheck0_3>]>;
 def SVDOT_LANE_X2_F : SInst<"svdot_lane[_{d}_{2}]", "ddhhi", "f",  MergeNone, 
"aarch64_sve_fdot_lane_x2", [VerifyRuntimeMode], [ImmCheck<3, ImmCheck0_3>]>;
+
+def SVFCLAMP   : SInst<"svclamp[_{d}]", "dddd", "hfd", MergeNone, 
"aarch64_sve_fclamp", [VerifyRuntimeMode], []>;
 }
 
-let SVETargetGuard = "sve2p1", SMETargetGuard = "sme" in {
+let SVETargetGuard = "sve2p1|sme", SMETargetGuard = "sve2p1|sme" in {
 def SVSCLAMP : SInst<"svclamp[_{d}]", "dddd", "csil",     MergeNone, 
"aarch64_sve_sclamp", [VerifyRuntimeMode], []>;
 def SVUCLAMP : SInst<"svclamp[_{d}]", "dddd", "UcUsUiUl", MergeNone, 
"aarch64_sve_uclamp", [VerifyRuntimeMode], []>;
 
@@ -2114,7 +2114,6 @@ let SVETargetGuard = "sve2p1", SMETargetGuard = "sme2" in 
{
 
   def SVPFALSE_COUNT_ALIAS : SInst<"svpfalse_c", "}v", "", MergeNone, "", 
[IsOverloadNone, VerifyRuntimeMode]>;
 
-  def SVFCLAMP   : SInst<"svclamp[_{d}]", "dddd", "hfd", MergeNone, 
"aarch64_sve_fclamp", [VerifyRuntimeMode], []>;
   def SVCNTP_COUNT : SInst<"svcntp_{d}", "n}i", "QcQsQiQl", MergeNone, 
"aarch64_sve_cntp_{d}", [IsOverloadNone, VerifyRuntimeMode], [ImmCheck<1, 
ImmCheck2_4_Mul2>]>;
 }
 
@@ -2271,7 +2270,9 @@ let SVETargetGuard = InvalidMode, SMETargetGuard = 
"sme2,faminmax" in {
 let SVETargetGuard = "sve2p1", SMETargetGuard = "sme2" in {
   def REINTERPRET_SVBOOL_TO_SVCOUNT : Inst<"svreinterpret[_c]", "}P", "Pc", 
MergeNone, "", [VerifyRuntimeMode], []>;
   def REINTERPRET_SVCOUNT_TO_SVBOOL : Inst<"svreinterpret[_b]", "P}", "Pc", 
MergeNone, "", [VerifyRuntimeMode], []>;
+}
 
+let SVETargetGuard = "sve2p1|sme2", SMETargetGuard = "sve2p1|sme2" in {
   // SQRSHRN / UQRSHRN
   def SVQRSHRN_X2   : SInst<"svqrshrn[_n]_{0}[_{d}_x2]", "h2i", "i",    
MergeNone, "aarch64_sve_sqrshrn_x2", [VerifyRuntimeMode], [ImmCheck<1, 
ImmCheck1_16>]>;
   def SVUQRSHRN_X2  : SInst<"svqrshrn[_n]_{0}[_{d}_x2]", "e2i", "Ui",   
MergeNone, "aarch64_sve_uqrshrn_x2", [VerifyRuntimeMode], [ImmCheck<1, 
ImmCheck1_16>]>;
@@ -2383,7 +2384,7 @@ let SVETargetGuard = InvalidMode, SMETargetGuard = "sme2" 
in {
 //
 // Multi-vector saturating extract narrow and interleave
 //
-let SVETargetGuard = "sve2p1", SMETargetGuard = "sme2" in {
+let SVETargetGuard = "sve2p1|sme2", SMETargetGuard = "sve2p1|sme2" in {
   def SVQCVTN_S16_S32_X2 : SInst<"svqcvtn_s16[_{d}_x2]", "h2.d", "i", 
MergeNone, "aarch64_sve_sqcvtn_x2", [VerifyRuntimeMode], []>;
   def SVQCVTN_U16_U32_X2 : SInst<"svqcvtn_u16[_{d}_x2]", "e2.d", "Ui", 
MergeNone, "aarch64_sve_uqcvtn_x2", [VerifyRuntimeMode], []>;
   def SVQCVTN_U16_S32_X2 : SInst<"svqcvtn_u16[_{d}_x2]", "e2.d", "i", 
MergeNone, "aarch64_sve_sqcvtun_x2", [VerifyRuntimeMode], []>;
@@ -2448,7 +2449,7 @@ let SVETargetGuard = InvalidMode, SMETargetGuard = 
"sme2,fp8" in {
   def SVFCVTN_X4 : Inst<"svcvtn_mf8[_{d}_x4]", "~4>", "f", MergeNone, 
"aarch64_sve_fp8_cvtn_x4", [IsOverloadNone, IsStreaming], []>;
 }
 
-let SVETargetGuard = "sve2p1", SMETargetGuard = "sme2" in {
+let SVETargetGuard = "sve2p1|sme2", SMETargetGuard = "sve2p1|sme2" in {
 // == BFloat16 multiply-subtract ==
   def SVBFMLSLB : SInst<"svbfmlslb[_{d}]", "dd$$", "f", MergeNone, 
"aarch64_sve_bfmlslb", [IsOverloadNone, VerifyRuntimeMode], []>;
   def SVBFMLSLT : SInst<"svbfmlslt[_{d}]", "dd$$", "f", MergeNone, 
"aarch64_sve_bfmlslt", [IsOverloadNone, VerifyRuntimeMode], []>;
diff --git a/clang/test/CodeGen/AArch64/sve2-intrinsics/acle_sve2_revd.c 
b/clang/test/CodeGen/AArch64/sve2-intrinsics/acle_sve2_revd.c
index d947cf78660ff..2143f27f95e45 100644
--- a/clang/test/CodeGen/AArch64/sve2-intrinsics/acle_sve2_revd.c
+++ b/clang/test/CodeGen/AArch64/sve2-intrinsics/acle_sve2_revd.c
@@ -1,7 +1,9 @@
 // NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py
 // REQUIRES: aarch64-registered-target
 // RUN: %clang_cc1 -fclang-abi-compat=latest -triple aarch64-none-linux-gnu \
-// RUN:   -target-feature +bf16 -target-feature +sme -target-feature +sme2 -O1 
-Werror -emit-llvm -o - %s | FileCheck %s
+// RUN:   -target-feature +bf16 -target-feature +sme -O1 -Werror -emit-llvm -o 
- %s | FileCheck %s
+// RUN: %clang_cc1 -fclang-abi-compat=latest -triple aarch64-none-linux-gnu \
+// RUN:   -target-feature +bf16 -target-feature +sve -target-feature +sme -O1 
-Werror -emit-llvm -o - %s | FileCheck %s
 // RUN: %clang_cc1 -fclang-abi-compat=latest -DSVE_OVERLOADED_FORMS -triple 
aarch64-none-linux-gnu \
 // RUN:   -target-feature +sve -target-feature +sve2 -target-feature +sve2p1 
-O1 -Werror -emit-llvm -o - %s | FileCheck %s
 // RUN: %clang_cc1 -fclang-abi-compat=latest -triple aarch64-none-linux-gnu \
@@ -9,10 +11,12 @@
 // RUN: %clang_cc1 -fclang-abi-compat=latest -DSVE_OVERLOADED_FORMS -triple 
aarch64-none-linux-gnu \
 // RUN:   -target-feature +sve -target-feature +sve2 -target-feature +sve2p1 
-O1 -Werror -emit-llvm -o - -x c++ %s | FileCheck %s -check-prefix=CPP-CHECK
 // RUN: %clang_cc1 -triple aarch64-none-linux-gnu -target-feature +sve 
-target-feature +sve2 -target-feature +sve2p1 -target-feature +bf16 -S 
-disable-O0-optnone -Werror -o /dev/null %s
-// RUN: %clang_cc1 -triple aarch64-none-linux-gnu -target-feature +sme 
-target-feature +sme2 -target-feature +bf16 -S -disable-O0-optnone -Werror -o 
/dev/null %s
+// RUN: %clang_cc1 -triple aarch64-none-linux-gnu -target-feature +sme 
-target-feature +bf16 -S -disable-O0-optnone -Werror -o /dev/null %s
 #include <arm_sve.h>
 
-#if defined __ARM_FEATURE_SME
+#if defined(__ARM_FEATURE_SME) && defined(__ARM_FEATURE_SVE)
+#define MODE_ATTR __arm_streaming_compatible
+#elif defined(__ARM_FEATURE_SME)
 #define MODE_ATTR __arm_streaming
 #else
 #define MODE_ATTR
diff --git a/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_bfmlsl.c 
b/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_bfmlsl.c
index 97c458fd01b7f..ad1128fd2b896 100644
--- a/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_bfmlsl.c
+++ b/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_bfmlsl.c
@@ -3,6 +3,8 @@
 
 // RUN: %clang_cc1 -fclang-abi-compat=latest -triple aarch64 -target-feature 
+sve -target-feature +sve2 -target-feature +sve2p1 -disable-O0-optnone -Werror 
-Wall -emit-llvm -o - %s | opt -S -p mem2reg,instcombine,tailcallelim | 
FileCheck %s
 // RUN: %clang_cc1 -fclang-abi-compat=latest -triple aarch64 -target-feature 
+bf16 -target-feature +sme -target-feature +sme2 -disable-O0-optnone -Werror 
-Wall -emit-llvm -o - %s | opt -S -p mem2reg,instcombine,tailcallelim | 
FileCheck %s
+// RUN: %clang_cc1 -fclang-abi-compat=latest -triple aarch64 -target-feature 
+bf16 -target-feature +sme -target-feature +sve -target-feature +sve2 
-target-feature +sve2p1 -disable-O0-optnone -Werror -Wall -emit-llvm -o - %s | 
opt -S -p mem2reg,instcombine,tailcallelim | FileCheck %s
+// RUN: %clang_cc1 -fclang-abi-compat=latest -triple aarch64 -target-feature 
+bf16 -target-feature +sve -target-feature +sme -target-feature +sme2 
-disable-O0-optnone -Werror -Wall -emit-llvm -o - %s | opt -S -p 
mem2reg,instcombine,tailcallelim | FileCheck %s
 // RUN: %clang_cc1 -fclang-abi-compat=latest -triple aarch64 -target-feature 
+sve -target-feature +sve2 -target-feature +sve2p1 -disable-O0-optnone -Werror 
-Wall -emit-llvm -o - -x c++ %s | opt -S -p mem2reg,instcombine,tailcallelim | 
FileCheck %s -check-prefix=CPP-CHECK
 // RUN: %clang_cc1 -fclang-abi-compat=latest -triple aarch64 -target-feature 
+bf16 -target-feature +sme -target-feature +sme2 -target-feature +sve 
-disable-O0-optnone -Werror -Wall -emit-llvm -o - -x c++ %s | opt -S -p 
mem2reg,instcombine,tailcallelim | FileCheck %s -check-prefix=CPP-CHECK
 // RUN: %clang_cc1 -fclang-abi-compat=latest -DSVE_OVERLOADED_FORMS -triple 
aarch64 -target-feature +sve -target-feature +sve2 -target-feature +sve2p1 
-disable-O0-optnone -Werror -Wall -emit-llvm -o - %s | opt -S -p 
mem2reg,instcombine,tailcallelim | FileCheck %s
@@ -12,7 +14,9 @@
 
 #include <arm_sve.h>
 
-#ifdef __ARM_FEATURE_SME
+#if defined(__ARM_FEATURE_SME) && defined(__ARM_FEATURE_SVE)
+#define ATTR __arm_streaming_compatible
+#elif defined(__ARM_FEATURE_SME)
 #define ATTR __arm_streaming
 #else
 #define ATTR
diff --git 
a/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_create2_bool.c 
b/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_create2_bool.c
index 5ac496427ad50..f416fe2b1b6ef 100644
--- a/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_create2_bool.c
+++ b/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_create2_bool.c
@@ -7,6 +7,10 @@
 // RUN: | opt -S -passes=mem2reg,tailcallelim | FileCheck %s
 // RUN: %clang_cc1 -triple aarch64 -target-feature +bf16 -target-feature +sme 
-target-feature +sme2 -disable-O0-optnone -Werror -Wall -emit-llvm -o - %s \
 // RUN: | opt -S -passes=mem2reg,tailcallelim | FileCheck %s
+// RUN: %clang_cc1 -triple aarch64 -target-feature +bf16 -target-feature +sve 
-target-feature +sme -target-feature +sme2 -disable-O0-optnone -Werror -Wall 
-emit-llvm -o - %s \
+// RUN: | opt -S -passes=mem2reg,tailcallelim | FileCheck %s
+// RUN: %clang_cc1 -triple aarch64 -target-feature +bf16 -target-feature +sme 
-target-feature +sve -target-feature +sve2 -target-feature +sve2p1 
-disable-O0-optnone -Werror -Wall -emit-llvm -o - %s \
+// RUN: | opt -S -passes=mem2reg,tailcallelim | FileCheck %s
 // RUN: %clang_cc1 -DSVE_OVERLOADED_FORMS -triple aarch64 -target-feature +sve 
-target-feature +sve2 -target-feature +sve2p1 -disable-O0-optnone -Werror -Wall 
-emit-llvm -o - -x c++ %s\
 // RUN: | opt -S -passes=mem2reg,tailcallelim | FileCheck %s 
-check-prefix=CPP-CHECK
 // RUN: %clang_cc1 -triple aarch64 -target-feature +bf16 -target-feature +sme 
-target-feature +sme2 -disable-O0-optnone -Werror -Wall -emit-llvm -o - -x c++ 
%s \
@@ -18,7 +22,9 @@
 
 #include <arm_sve.h>
 
-#if defined __ARM_FEATURE_SME
+#if defined(__ARM_FEATURE_SME) && defined(__ARM_FEATURE_SVE)
+#define MODE_ATTR __arm_streaming_compatible
+#elif defined(__ARM_FEATURE_SME)
 #define MODE_ATTR __arm_streaming
 #else
 #define MODE_ATTR
diff --git 
a/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_create4_bool.c 
b/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_create4_bool.c
index ce14ca859667c..0026124deaae8 100644
--- a/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_create4_bool.c
+++ b/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_create4_bool.c
@@ -7,6 +7,10 @@
 // RUN: | opt -S -passes=mem2reg,tailcallelim | FileCheck %s
 // RUN: %clang_cc1 -triple aarch64 -target-feature +bf16 -target-feature +sme 
-target-feature +sme2 -disable-O0-optnone -Werror -Wall -emit-llvm -o - %s \
 // RUN: | opt -S -passes=mem2reg,tailcallelim | FileCheck %s
+// RUN: %clang_cc1 -triple aarch64 -target-feature +bf16 -target-feature +sve 
-target-feature +sme -target-feature +sme2 -disable-O0-optnone -Werror -Wall 
-emit-llvm -o - %s \
+// RUN: | opt -S -passes=mem2reg,tailcallelim | FileCheck %s
+// RUN: %clang_cc1 -triple aarch64 -target-feature +bf16 -target-feature +sme 
-target-feature +sve -target-feature +sve2 -target-feature +sve2p1 
-disable-O0-optnone -Werror -Wall -emit-llvm -o - %s \
+// RUN: | opt -S -passes=mem2reg,tailcallelim | FileCheck %s
 // RUN: %clang_cc1 -DSVE_OVERLOADED_FORMS -triple aarch64 -target-feature +sve 
-target-feature +sve2 -target-feature +sve2p1 -disable-O0-optnone -Werror -Wall 
-emit-llvm -o - -x c++ %s\
 // RUN: | opt -S -passes=mem2reg,tailcallelim | FileCheck %s 
-check-prefix=CPP-CHECK
 // RUN: %clang_cc1 -triple aarch64 -target-feature +bf16 -target-feature +sme 
-target-feature +sme2 -disable-O0-optnone -Werror -Wall -emit-llvm -o - -x c++ 
%s \
@@ -25,7 +29,9 @@
 #define SVE_ACLE_FUNC(A1,A2,A3,A4) A1##A2##A3##A4
 #endif
 
-#ifdef __ARM_FEATURE_SME
+#if defined(__ARM_FEATURE_SME) && defined(__ARM_FEATURE_SVE)
+#define ATTR __arm_streaming_compatible
+#elif defined(__ARM_FEATURE_SME)
 #define ATTR __arm_streaming
 #else
 #define ATTR
diff --git a/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_dot.c 
b/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_dot.c
index 39b1b13a01ddc..8543385dd263d 100644
--- a/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_dot.c
+++ b/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_dot.c
@@ -4,13 +4,17 @@
 // RUN: %clang_cc1 -fclang-abi-compat=latest -triple aarch64 -target-feature 
+sve -target-feature +sve2 -target-feature +sve2p1 -disable-O0-optnone -Werror 
-Wall -emit-llvm -o - -x c++ %s | opt -S -p mem2reg,instcombine,tailcallelim | 
FileCheck %s -check-prefix=CPP-CHECK
 // RUN: %clang_cc1 -fclang-abi-compat=latest -triple aarch64 -target-feature 
+bf16 -target-feature +sme -target-feature +sme2 -disable-O0-optnone -Werror 
-Wall -emit-llvm -o - %s | opt -S -p mem2reg,instcombine,tailcallelim | 
FileCheck %s
 // RUN: %clang_cc1 -fclang-abi-compat=latest -triple aarch64 -target-feature 
+bf16 -target-feature +sme -target-feature +sme2 -disable-O0-optnone -Werror 
-Wall -emit-llvm -o - -x c++ %s | opt -S -p mem2reg,instcombine,tailcallelim | 
FileCheck %s -check-prefix=CPP-CHECK
+// RUN: %clang_cc1 -fclang-abi-compat=latest -triple aarch64 -target-feature 
+bf16 -target-feature +sve -target-feature +sme -target-feature +sme2 
-disable-O0-optnone -Werror -Wall -emit-llvm -o - %s | opt -S -p 
mem2reg,instcombine,tailcallelim | FileCheck %s
+// RUN: %clang_cc1 -fclang-abi-compat=latest -triple aarch64 -target-feature 
+bf16 -target-feature +sme -target-feature +sve -target-feature +sve2 
-target-feature +sve2p1 -disable-O0-optnone -Werror -Wall -emit-llvm -o - %s | 
opt -S -p mem2reg,instcombine,tailcallelim | FileCheck %s
 // RUN: %clang_cc1 -fclang-abi-compat=latest -DSVE_OVERLOADED_FORMS -triple 
aarch64 -target-feature +sve -target-feature +sve2 -target-feature +sve2p1 
-disable-O0-optnone -Werror -Wall -emit-llvm -o - %s | opt -S -p 
mem2reg,instcombine,tailcallelim | FileCheck %s
 // RUN: %clang_cc1 -fclang-abi-compat=latest -DSVE_OVERLOADED_FORMS -triple 
aarch64 -target-feature +sve -target-feature +sve2 -target-feature +sve2p1 
-disable-O0-optnone -Werror -Wall -emit-llvm -o - -x c++ %s | opt -S -p 
mem2reg,instcombine,tailcallelim | FileCheck %s -check-prefix=CPP-CHECK
 // RUN: %clang_cc1 -fclang-abi-compat=latest -triple aarch64 -target-feature 
+sve -target-feature +sve2 -target-feature +sve2p1 -S -disable-O0-optnone 
-Werror -Wall -o /dev/null %s
 // RUN: %clang_cc1 -fclang-abi-compat=latest -triple aarch64 -target-feature 
+bf16 -target-feature +sme -target-feature +sme2 -S -disable-O0-optnone -Werror 
-Wall -o /dev/null %s
 #include <arm_sve.h>
 
-#ifdef __ARM_FEATURE_SME
+#if defined(__ARM_FEATURE_SME) && defined(__ARM_FEATURE_SVE)
+#define ATTR __arm_streaming_compatible
+#elif defined(__ARM_FEATURE_SME)
 #define ATTR __arm_streaming
 #else
 #define ATTR
diff --git a/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_fclamp.c 
b/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_fclamp.c
index c9fd5aba18bd5..8fbcc43678c7d 100644
--- a/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_fclamp.c
+++ b/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_fclamp.c
@@ -2,6 +2,12 @@
 // REQUIRES: aarch64-registered-target
 // RUN: %clang_cc1 -fclang-abi-compat=latest -triple aarch64-none-linux-gnu 
-target-feature +sve -target-feature +sve2 -target-feature +sve2p1 \
 // RUN:   -Werror -emit-llvm -disable-O0-optnone -o - %s | opt -S -p 
mem2reg,instcombine,tailcallelim | FileCheck %s
+// RUN: %clang_cc1 -fclang-abi-compat=latest -triple aarch64-none-linux-gnu 
-target-feature +sme -target-feature +sme2 \
+// RUN:   -Werror -emit-llvm -disable-O0-optnone -o - %s | opt -S -p 
mem2reg,instcombine,tailcallelim | FileCheck %s
+// RUN: %clang_cc1 -fclang-abi-compat=latest -triple aarch64-none-linux-gnu 
-target-feature +sve -target-feature +sme -target-feature +sme2 \
+// RUN:   -Werror -emit-llvm -disable-O0-optnone -o - %s | opt -S -p 
mem2reg,instcombine,tailcallelim | FileCheck %s
+// RUN: %clang_cc1 -fclang-abi-compat=latest -triple aarch64-none-linux-gnu 
-target-feature +sme -target-feature +sve -target-feature +sve2 -target-feature 
+sve2p1 \
+// RUN:   -Werror -emit-llvm -disable-O0-optnone -o - %s | opt -S -p 
mem2reg,instcombine,tailcallelim | FileCheck %s
 // RUN: %clang_cc1 -fclang-abi-compat=latest -DSVE_OVERLOADED_FORMS -triple 
aarch64-none-linux-gnu -target-feature +sve -target-feature +sve2 
-target-feature +sve2p1 \
 // RUN:   -Werror -emit-llvm -disable-O0-optnone -o - %s | opt -S -p 
mem2reg,instcombine,tailcallelim | FileCheck %s
 // RUN: %clang_cc1 -fclang-abi-compat=latest -triple aarch64-none-linux-gnu 
-target-feature +sve -target-feature +sve2 -target-feature +sve2p1 \
@@ -15,7 +21,9 @@
 
 #include <arm_sve.h>
 
-#ifdef __ARM_FEATURE_SME
+#if defined(__ARM_FEATURE_SME) && defined(__ARM_FEATURE_SVE)
+#define ATTR __arm_streaming_compatible
+#elif defined(__ARM_FEATURE_SME)
 #define ATTR __arm_streaming
 #else
 #define ATTR
diff --git 
a/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_get2_bool.c 
b/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_get2_bool.c
index 9907783331c30..cb30296cb618a 100644
--- a/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_get2_bool.c
+++ b/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_get2_bool.c
@@ -7,6 +7,10 @@
 // RUN: | opt -S -passes=mem2reg,tailcallelim | FileCheck %s
 // RUN: %clang_cc1 -triple aarch64 -target-feature +bf16 -target-feature +sme 
-target-feature +sme2 -disable-O0-optnone -Werror -Wall -emit-llvm -o - %s \
 // RUN: | opt -S -passes=mem2reg,tailcallelim | FileCheck %s
+// RUN: %clang_cc1 -triple aarch64 -target-feature +bf16 -target-feature +sve 
-target-feature +sme -target-feature +sme2 -disable-O0-optnone -Werror -Wall 
-emit-llvm -o - %s \
+// RUN: | opt -S -passes=mem2reg,tailcallelim | FileCheck %s
+// RUN: %clang_cc1 -triple aarch64 -target-feature +bf16 -target-feature +sme 
-target-feature +sve -target-feature +sve2 -target-feature +sve2p1 
-disable-O0-optnone -Werror -Wall -emit-llvm -o - %s \
+// RUN: | opt -S -passes=mem2reg,tailcallelim | FileCheck %s
 // RUN: %clang_cc1 -DSVE_OVERLOADED_FORMS -triple aarch64 -target-feature +sve 
-target-feature +sve2 -target-feature +sve2p1 -disable-O0-optnone -Werror -Wall 
-emit-llvm -o - -x c++ %s\
 // RUN: | opt -S -passes=mem2reg,tailcallelim | FileCheck %s 
-check-prefix=CPP-CHECK
 // RUN: %clang_cc1 -triple aarch64 -target-feature +bf16 -target-feature +sme 
-target-feature +sme2 -disable-O0-optnone -Werror -Wall -emit-llvm -o - -x c++ 
%s \
@@ -23,7 +27,9 @@
 #define SVE_ACLE_FUNC(A1,A2,A3,A4) A1##A2##A3##A4
 #endif
 
-#ifdef __ARM_FEATURE_SME
+#if defined(__ARM_FEATURE_SME) && defined(__ARM_FEATURE_SVE)
+#define ATTR __arm_streaming_compatible
+#elif defined(__ARM_FEATURE_SME)
 #define ATTR __arm_streaming
 #else
 #define ATTR
diff --git 
a/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_get4_bool.c 
b/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_get4_bool.c
index bfe63bdfb9647..611fc061f810e 100644
--- a/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_get4_bool.c
+++ b/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_get4_bool.c
@@ -7,6 +7,10 @@
 // RUN: | opt -S -passes=mem2reg,tailcallelim | FileCheck %s
 // RUN: %clang_cc1 -triple aarch64 -target-feature +bf16 -target-feature +sme 
-target-feature +sme2 -disable-O0-optnone -Werror -Wall -emit-llvm -o - %s \
 // RUN: | opt -S -passes=mem2reg,tailcallelim | FileCheck %s
+// RUN: %clang_cc1 -triple aarch64 -target-feature +bf16 -target-feature +sve 
-target-feature +sme -target-feature +sme2 -disable-O0-optnone -Werror -Wall 
-emit-llvm -o - %s \
+// RUN: | opt -S -passes=mem2reg,tailcallelim | FileCheck %s
+// RUN: %clang_cc1 -triple aarch64 -target-feature +bf16 -target-feature +sme 
-target-feature +sve -target-feature +sve2 -target-feature +sve2p1 
-disable-O0-optnone -Werror -Wall -emit-llvm -o - %s \
+// RUN: | opt -S -passes=mem2reg,tailcallelim | FileCheck %s
 // RUN: %clang_cc1 -DSVE_OVERLOADED_FORMS -triple aarch64 -target-feature +sve 
-target-feature +sve2 -target-feature +sve2p1 -disable-O0-optnone -Werror -Wall 
-emit-llvm -o - -x c++ %s\
 // RUN: | opt -S -passes=mem2reg,tailcallelim | FileCheck %s 
-check-prefix=CPP-CHECK
 // RUN: %clang_cc1 -triple aarch64 -target-feature +bf16 -target-feature +sme 
-target-feature +sme2 -disable-O0-optnone -Werror -Wall -emit-llvm -o - -x c++ 
%s \
@@ -18,7 +22,9 @@
 
 #include <arm_sve.h>
 
-#if defined __ARM_FEATURE_SME
+#if defined(__ARM_FEATURE_SME) && defined(__ARM_FEATURE_SVE)
+#define MODE_ATTR __arm_streaming_compatible
+#elif defined(__ARM_FEATURE_SME)
 #define MODE_ATTR __arm_streaming
 #else
 #define MODE_ATTR
diff --git a/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_psel.c 
b/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_psel.c
index 4e9ec2c5820b6..d2fff9f3002b7 100644
--- a/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_psel.c
+++ b/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_psel.c
@@ -3,13 +3,11 @@
 // RUN: %clang_cc1 -fclang-abi-compat=latest -triple aarch64-none-linux-gnu \
 // RUN:   -target-feature +sve -target-feature +sve2 -target-feature +sve2p1 
-O1 -Werror -emit-llvm -o - %s | FileCheck %s
 // RUN: %clang_cc1 -fclang-abi-compat=latest -triple aarch64-none-linux-gnu \
-// RUN:   -target-feature +sve -target-feature +sve2 -target-feature +sve2p1 
-O1 -Werror -emit-llvm -o - -x c++ %s | FileCheck %s -check-prefix=CPP-CHECK
-// RUN: %clang_cc1 -fclang-abi-compat=latest -triple aarch64-none-linux-gnu 
-target-feature +sve -target-feature +sve2 -target-feature +sve2p1 -S 
-disable-O0-optnone -Werror -Wall -o /dev/null %s
+// RUN:   -target-feature +sme -O1 -Werror -emit-llvm -o - %s | FileCheck %s
 // RUN: %clang_cc1 -fclang-abi-compat=latest -triple aarch64-none-linux-gnu \
-// RUN:   -target-feature +sve -target-feature +sve2 -target-feature +sve2p1 
-O1 -Werror -emit-llvm -o - %s | FileCheck %s
+// RUN:   -target-feature +sve -target-feature +sme -O1 -Werror -emit-llvm -o 
- %s | FileCheck %s
 // RUN: %clang_cc1 -fclang-abi-compat=latest -triple aarch64-none-linux-gnu \
 // RUN:   -target-feature +sve -target-feature +sve2 -target-feature +sve2p1 
-O1 -Werror -emit-llvm -o - -x c++ %s | FileCheck %s -check-prefix=CPP-CHECK
-// RUN: %clang_cc1 -fclang-abi-compat=latest -triple aarch64-none-linux-gnu 
-target-feature +sve -target-feature +sve2 -target-feature +sve2p1 -S 
-disable-O0-optnone -Werror -Wall -o /dev/null %s
 // RUN: %clang_cc1 -fclang-abi-compat=latest -triple aarch64-none-linux-gnu \
 // RUN:   -target-feature +bf16 -target-feature +sme -O1 -Werror -emit-llvm -o 
- -x c++ %s | FileCheck %s -check-prefix=CPP-CHECK
 // RUN: %clang_cc1 -fclang-abi-compat=latest -triple aarch64-none-linux-gnu 
-target-feature +bf16 -target-feature +sme -S -disable-O0-optnone -Werror -Wall 
-o /dev/null %s
@@ -17,7 +15,9 @@
 
 #include <arm_sve.h>
 
-#ifdef __ARM_FEATURE_SME
+#if defined(__ARM_FEATURE_SME) && defined(__ARM_FEATURE_SVE)
+#define ATTR __arm_streaming_compatible
+#elif defined(__ARM_FEATURE_SME)
 #define ATTR __arm_streaming
 #else
 #define ATTR
diff --git a/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_qcvtn.c 
b/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_qcvtn.c
index 5ab666117a103..f80f7455c539a 100644
--- a/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_qcvtn.c
+++ b/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_qcvtn.c
@@ -8,7 +8,9 @@
 // RUN: %clang_cc1 -D__SVE_OVERLOADED_FORMS -triple aarch64 -target-feature 
+sve -target-feature +sve2 -target-feature +sve2p1 -target-feature +bf16 
-disable-O0-optnone -Werror -Wall -emit-llvm -o - -x c++ %s | opt -S -p 
mem2reg,instcombine,tailcallelim | FileCheck %s -check-prefix=CPP-CHECK
 // RUN: %clang_cc1 -triple aarch64 -target-feature +sve -target-feature +sve2 
-target-feature +sve2p1 -target-feature +bf16 -S -disable-O0-optnone -Werror 
-Wall -o /dev/null %s
 
-// RUN: %clang_cc1 -triple aarch64 -target-feature +sme -target-feature +sve 
-target-feature +sme2 -target-feature +bf16 -disable-O0-optnone -Werror -Wall 
-emit-llvm -o - %s | opt -S -p mem2reg,instcombine,tailcallelim | FileCheck %s
+// RUN: %clang_cc1 -triple aarch64 -target-feature +sme -target-feature +sme2 
-target-feature +bf16 -disable-O0-optnone -Werror -Wall -emit-llvm -o - %s | 
opt -S -p mem2reg,instcombine,tailcallelim | FileCheck %s
+// RUN: %clang_cc1 -triple aarch64 -target-feature +sve -target-feature +sme 
-target-feature +sme2 -target-feature +bf16 -disable-O0-optnone -Werror -Wall 
-emit-llvm -o - %s | opt -S -p mem2reg,instcombine,tailcallelim | FileCheck %s
+// RUN: %clang_cc1 -triple aarch64 -target-feature +sme -target-feature +sve 
-target-feature +sve2 -target-feature +sve2p1 -target-feature +bf16 
-disable-O0-optnone -Werror -Wall -emit-llvm -o - %s | opt -S -p 
mem2reg,instcombine,tailcallelim | FileCheck %s
 // RUN: %clang_cc1 -triple aarch64 -target-feature +sme -target-feature +sve 
-target-feature +sme2 -target-feature +bf16 -disable-O0-optnone -Werror -Wall 
-emit-llvm -o - -x c++ %s | opt -S -p mem2reg,instcombine,tailcallelim | 
FileCheck %s -check-prefix=CPP-CHECK
 // RUN: %clang_cc1 -triple aarch64 -target-feature +sme -target-feature +sve 
-target-feature +sme2 -target-feature +bf16 -S -disable-O0-optnone -Werror 
-Wall -o /dev/null %s
 
@@ -21,7 +23,9 @@
 #define SVE_ACLE_FUNC(A1,A2,A3,A4) A1##A2##A3##A4
 #endif
 
-#ifdef __ARM_FEATURE_SME
+#if defined(__ARM_FEATURE_SME) && defined(__ARM_FEATURE_SVE)
+#define ATTR __arm_streaming_compatible
+#elif defined(__ARM_FEATURE_SME)
 #define ATTR __arm_streaming
 #else
 #define ATTR
diff --git a/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_qrshr.c 
b/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_qrshr.c
index f95b22fdaeaf4..baa4acf6ec6c9 100644
--- a/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_qrshr.c
+++ b/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_qrshr.c
@@ -1,6 +1,8 @@
 // NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py
 // REQUIRES: aarch64-registered-target
-// RUN: %clang_cc1 -triple aarch64 -target-feature +bf16 -target-feature +sme 
-target-feature +sve -target-feature +sme2 -disable-O0-optnone -Werror -Wall 
-emit-llvm -o - %s | opt -S -passes=mem2reg,instcombine,tailcallelim | 
FileCheck %s
+// RUN: %clang_cc1 -triple aarch64 -target-feature +bf16 -target-feature +sme 
-target-feature +sme2 -disable-O0-optnone -Werror -Wall -emit-llvm -o - %s | 
opt -S -passes=mem2reg,instcombine,tailcallelim | FileCheck %s
+// RUN: %clang_cc1 -triple aarch64 -target-feature +bf16 -target-feature +sve 
-target-feature +sme -target-feature +sme2 -disable-O0-optnone -Werror -Wall 
-emit-llvm -o - %s | opt -S -passes=mem2reg,instcombine,tailcallelim | 
FileCheck %s
+// RUN: %clang_cc1 -triple aarch64 -target-feature +bf16 -target-feature +sme 
-target-feature +sve -target-feature +sve2 -target-feature +sve2p1 
-disable-O0-optnone -Werror -Wall -emit-llvm -o - %s | opt -S 
-passes=mem2reg,instcombine,tailcallelim | FileCheck %s
 // RUN: %clang_cc1 -triple aarch64 -target-feature +sve -target-feature +sve2 
-target-feature +sve2p1 -disable-O0-optnone -Werror -Wall -emit-llvm -o - %s | 
opt -S -passes=mem2reg,instcombine,tailcallelim | FileCheck %s
 // RUN: %clang_cc1 -triple aarch64 -target-feature +bf16 -target-feature +sme 
-target-feature +sve -target-feature +sme2 -disable-O0-optnone -Werror -Wall 
-emit-llvm -o - -x c++ %s | opt -S -passes=mem2reg,instcombine,tailcallelim | 
FileCheck %s -check-prefix=CPP-CHECK
 // RUN: %clang_cc1 -DSVE_OVERLOADED_FORMS -triple aarch64 -target-feature 
+bf16 -target-feature +sme -target-feature +sve -target-feature +sme2 
-disable-O0-optnone -Werror -Wall -emit-llvm -o - %s | opt -S 
-passes=mem2reg,instcombine,tailcallelim | FileCheck %s
@@ -10,7 +12,9 @@
 
 #include <arm_sve.h>
 
-#ifdef __ARM_FEATURE_SME
+#if defined(__ARM_FEATURE_SME) && defined(__ARM_FEATURE_SVE)
+#define ATTR __arm_streaming_compatible
+#elif defined(__ARM_FEATURE_SME)
 #define ATTR __arm_streaming
 #else
 #define ATTR
diff --git a/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_sclamp.c 
b/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_sclamp.c
index 7276bfc97e234..07b77dbb1378c 100644
--- a/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_sclamp.c
+++ b/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_sclamp.c
@@ -10,16 +10,20 @@
 // RUN:   -Werror -emit-llvm -disable-O0-optnone -o - -x c++ %s | opt -S -p 
mem2reg,instcombine,tailcallelim | FileCheck %s -check-prefix=CPP-CHECK
 // RUN: %clang_cc1 -fclang-abi-compat=latest -triple aarch64-none-linux-gnu 
-target-feature +sve -target-feature +sve2 -target-feature +sve2p1 \
 // RUN:   -S -disable-O0-optnone -Werror -Wall -o /dev/null %s
-// RUN: %clang_cc1 -fclang-abi-compat=latest -triple aarch64-none-linux-gnu 
-target-feature +bf16 -target-feature +sme -target-feature +sme2 \
+// RUN: %clang_cc1 -fclang-abi-compat=latest -triple aarch64-none-linux-gnu 
-target-feature +bf16 -target-feature +sme \
 // RUN:   -Werror -emit-llvm -disable-O0-optnone -o - %s | opt -S -p 
mem2reg,instcombine,tailcallelim | FileCheck %s
-// RUN: %clang_cc1 -fclang-abi-compat=latest -triple aarch64-none-linux-gnu 
-target-feature +bf16 -target-feature +sme -target-feature +sme2 \
+// RUN: %clang_cc1 -fclang-abi-compat=latest -triple aarch64-none-linux-gnu 
-target-feature +bf16 -target-feature +sme -target-feature +sve \
+// RUN:   -Werror -emit-llvm -disable-O0-optnone -o - %s | opt -S -p 
mem2reg,instcombine,tailcallelim | FileCheck %s
+// RUN: %clang_cc1 -fclang-abi-compat=latest -triple aarch64-none-linux-gnu 
-target-feature +bf16 -target-feature +sme \
 // RUN:   -Werror -emit-llvm -disable-O0-optnone -o - -x c++ %s | opt -S -p 
mem2reg,instcombine,tailcallelim | FileCheck %s -check-prefix=CPP-CHECK
-// RUN: %clang_cc1 -fclang-abi-compat=latest -triple aarch64-none-linux-gnu 
-target-feature +bf16 -target-feature +sme -target-feature +sme2 \
+// RUN: %clang_cc1 -fclang-abi-compat=latest -triple aarch64-none-linux-gnu 
-target-feature +bf16 -target-feature +sme \
 // RUN:   -S -disable-O0-optnone -Werror -Wall -o /dev/null %s
 
 #include <arm_sve.h>
 
-#ifdef __ARM_FEATURE_SME
+#if defined(__ARM_FEATURE_SME) && defined(__ARM_FEATURE_SVE)
+#define ATTR __arm_streaming_compatible
+#elif defined(__ARM_FEATURE_SME)
 #define ATTR __arm_streaming
 #else
 #define ATTR
diff --git 
a/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_set2_bool.c 
b/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_set2_bool.c
index 67e32a88aae74..08b9094a0082d 100644
--- a/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_set2_bool.c
+++ b/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_set2_bool.c
@@ -7,6 +7,10 @@
 // RUN: | opt -S -passes=mem2reg,tailcallelim | FileCheck %s
 // RUN: %clang_cc1 -triple aarch64 -target-feature +bf16 -target-feature +sme 
-target-feature +sme2 -disable-O0-optnone -Werror -Wall -emit-llvm -o - %s \
 // RUN: | opt -S -passes=mem2reg,tailcallelim | FileCheck %s
+// RUN: %clang_cc1 -triple aarch64 -target-feature +bf16 -target-feature +sve 
-target-feature +sme -target-feature +sme2 -disable-O0-optnone -Werror -Wall 
-emit-llvm -o - %s \
+// RUN: | opt -S -passes=mem2reg,tailcallelim | FileCheck %s
+// RUN: %clang_cc1 -triple aarch64 -target-feature +bf16 -target-feature +sme 
-target-feature +sve -target-feature +sve2 -target-feature +sve2p1 
-disable-O0-optnone -Werror -Wall -emit-llvm -o - %s \
+// RUN: | opt -S -passes=mem2reg,tailcallelim | FileCheck %s
 // RUN: %clang_cc1 -DSVE_OVERLOADED_FORMS -triple aarch64 -target-feature +sve 
-target-feature +sve2 -target-feature +sve2p1 -disable-O0-optnone -Werror -Wall 
-emit-llvm -o - -x c++ %s\
 // RUN: | opt -S -passes=mem2reg,tailcallelim | FileCheck %s 
-check-prefix=CPP-CHECK
 // RUN: %clang_cc1 -triple aarch64 -target-feature +bf16 -target-feature +sme 
-target-feature +sme2 -disable-O0-optnone -Werror -Wall -emit-llvm -o - -x c++ 
%s \
@@ -25,7 +29,9 @@
 #define SVE_ACLE_FUNC(A1,A2,A3,A4) A1##A2##A3##A4
 #endif
 
-#ifdef __ARM_FEATURE_SME
+#if defined(__ARM_FEATURE_SME) && defined(__ARM_FEATURE_SVE)
+#define ATTR __arm_streaming_compatible
+#elif defined(__ARM_FEATURE_SME)
 #define ATTR __arm_streaming
 #else
 #define ATTR
diff --git 
a/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_set4_bool.c 
b/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_set4_bool.c
index 6e4016d8e120e..9b20d23d0fe84 100644
--- a/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_set4_bool.c
+++ b/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_set4_bool.c
@@ -7,6 +7,10 @@
 // RUN: | opt -S -passes=mem2reg,tailcallelim | FileCheck %s
 // RUN: %clang_cc1 -triple aarch64 -target-feature +bf16 -target-feature +sme 
-target-feature +sme2 -disable-O0-optnone -Werror -Wall -emit-llvm -o - %s \
 // RUN: | opt -S -passes=mem2reg,tailcallelim | FileCheck %s
+// RUN: %clang_cc1 -triple aarch64 -target-feature +bf16 -target-feature +sve 
-target-feature +sme -target-feature +sme2 -disable-O0-optnone -Werror -Wall 
-emit-llvm -o - %s \
+// RUN: | opt -S -passes=mem2reg,tailcallelim | FileCheck %s
+// RUN: %clang_cc1 -triple aarch64 -target-feature +bf16 -target-feature +sme 
-target-feature +sve -target-feature +sve2 -target-feature +sve2p1 
-disable-O0-optnone -Werror -Wall -emit-llvm -o - %s \
+// RUN: | opt -S -passes=mem2reg,tailcallelim | FileCheck %s
 // RUN: %clang_cc1 -DSVE_OVERLOADED_FORMS -triple aarch64 -target-feature +sve 
-target-feature +sve2 -target-feature +sve2p1 -disable-O0-optnone -Werror -Wall 
-emit-llvm -o - -x c++ %s\
 // RUN: | opt -S -passes=mem2reg,tailcallelim | FileCheck %s 
-check-prefix=CPP-CHECK
 // RUN: %clang_cc1 -triple aarch64 -target-feature +bf16 -target-feature +sme 
-target-feature +sme2 -disable-O0-optnone -Werror -Wall -emit-llvm -o - -x c++ 
%s \
@@ -24,7 +28,9 @@
 #define SVE_ACLE_FUNC(A1,A2,A3,A4) A1##A2##A3##A4
 #endif
 
-#ifdef __ARM_FEATURE_SME
+#if defined(__ARM_FEATURE_SME) && defined(__ARM_FEATURE_SVE)
+#define ATTR __arm_streaming_compatible
+#elif defined(__ARM_FEATURE_SME)
 #define ATTR __arm_streaming
 #else
 #define ATTR
diff --git a/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_uclamp.c 
b/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_uclamp.c
index 58bc887e668d7..4c4ffeef38c18 100644
--- a/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_uclamp.c
+++ b/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_uclamp.c
@@ -10,16 +10,20 @@
 // RUN:   -Werror -emit-llvm -disable-O0-optnone -o - -x c++ %s | opt -S -p 
mem2reg,instcombine,tailcallelim | FileCheck %s -check-prefix=CPP-CHECK
 // RUN: %clang_cc1 -fclang-abi-compat=latest -triple aarch64-none-linux-gnu 
-target-feature +sve -target-feature +sve2 -target-feature +sve2p1 \
 // RUN:   -S -disable-O0-optnone -Werror -Wall -o /dev/null %s
-// RUN: %clang_cc1 -fclang-abi-compat=latest -triple aarch64-none-linux-gnu 
-target-feature +bf16 -target-feature +sme -target-feature +sme2 \
+// RUN: %clang_cc1 -fclang-abi-compat=latest -triple aarch64-none-linux-gnu 
-target-feature +bf16 -target-feature +sme \
 // RUN:   -Werror -emit-llvm -disable-O0-optnone -o - %s | opt -S -p 
mem2reg,instcombine,tailcallelim | FileCheck %s
-// RUN: %clang_cc1 -fclang-abi-compat=latest -triple aarch64-none-linux-gnu 
-target-feature +bf16 -target-feature +sme -target-feature +sme2 \
+// RUN: %clang_cc1 -fclang-abi-compat=latest -triple aarch64-none-linux-gnu 
-target-feature +bf16 -target-feature +sme -target-feature +sve \
+// RUN:   -Werror -emit-llvm -disable-O0-optnone -o - %s | opt -S -p 
mem2reg,instcombine,tailcallelim | FileCheck %s
+// RUN: %clang_cc1 -fclang-abi-compat=latest -triple aarch64-none-linux-gnu 
-target-feature +bf16 -target-feature +sme \
 // RUN:   -Werror -emit-llvm -disable-O0-optnone -o - -x c++ %s | opt -S -p 
mem2reg,instcombine,tailcallelim | FileCheck %s -check-prefix=CPP-CHECK
-// RUN: %clang_cc1 -fclang-abi-compat=latest -triple aarch64-none-linux-gnu 
-target-feature +bf16 -target-feature +sme -target-feature +sme2 \
+// RUN: %clang_cc1 -fclang-abi-compat=latest -triple aarch64-none-linux-gnu 
-target-feature +bf16 -target-feature +sme \
 // RUN:   -S -disable-O0-optnone -Werror -Wall -o /dev/null %s
 
 #include <arm_sve.h>
 
-#ifdef __ARM_FEATURE_SME
+#if defined(__ARM_FEATURE_SME) && defined(__ARM_FEATURE_SVE)
+#define ATTR __arm_streaming_compatible
+#elif defined(__ARM_FEATURE_SME)
 #define ATTR __arm_streaming
 #else
 #define ATTR
diff --git 
a/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_undef_bool.c 
b/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_undef_bool.c
index 55defc45c5430..c0e429307ba32 100644
--- a/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_undef_bool.c
+++ b/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_undef_bool.c
@@ -2,6 +2,8 @@
 // RUN: %clang_cc1 -triple aarch64 -target-feature +sve -target-feature +sve2 
-target-feature +sve2p1 -O2 -Werror -Wall -emit-llvm -o - %s | opt -S 
-passes=mem2reg,tailcallelim | FileCheck %s
 // RUN: %clang_cc1 -triple aarch64 -target-feature +sve -target-feature +sve2 
-target-feature +sve2p1 -O2 -Werror -Wall -emit-llvm -o - -x c++ %s | opt -S 
-passes=mem2reg,tailcallelim | FileCheck %s -check-prefix=CPP-CHECK
 // RUN: %clang_cc1 -triple aarch64 -target-feature +bf16 -target-feature +sme 
-target-feature +sme2 -O2 -Werror -Wall -emit-llvm -o - %s | opt -S 
-passes=mem2reg,tailcallelim | FileCheck %s
+// RUN: %clang_cc1 -triple aarch64 -target-feature +bf16 -target-feature +sve 
-target-feature +sme -target-feature +sme2 -O2 -Werror -Wall -emit-llvm -o - %s 
| opt -S -passes=mem2reg,tailcallelim | FileCheck %s
+// RUN: %clang_cc1 -triple aarch64 -target-feature +bf16 -target-feature +sme 
-target-feature +sve -target-feature +sve2 -target-feature +sve2p1 -O2 -Werror 
-Wall -emit-llvm -o - %s | opt -S -passes=mem2reg,tailcallelim | FileCheck %s
 // RUN: %clang_cc1 -triple aarch64 -target-feature +bf16 -target-feature +sme 
-target-feature +sme2 -O2 -Werror -Wall -emit-llvm -o - -x c++ %s | opt -S 
-passes=mem2reg,tailcallelim | FileCheck %s -check-prefix=CPP-CHECK
 // RUN: %clang_cc1 -triple aarch64 -target-feature +bf16 -target-feature +sme 
-target-feature +sme2 -S -disable-O0-optnone -Werror -Wall -o /dev/null %s
 
@@ -9,7 +11,9 @@
 
 #include <arm_sve.h>
 
-#if defined __ARM_FEATURE_SME
+#if defined(__ARM_FEATURE_SME) && defined(__ARM_FEATURE_SVE)
+#define MODE_ATTR __arm_streaming_compatible
+#elif defined(__ARM_FEATURE_SME)
 #define MODE_ATTR __arm_streaming
 #else
 #define MODE_ATTR
diff --git 
a/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_while_x2.c 
b/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_while_x2.c
index 612f2d25d40d0..bd485f15e490e 100644
--- a/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_while_x2.c
+++ b/clang/test/CodeGen/AArch64/sve2p1-intrinsics/acle_sve2p1_while_x2.c
@@ -1,6 +1,8 @@
 // NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py 
UTC_ARGS: --version 4
 // REQUIRES: aarch64-registered-target
 // RUN: %clang_cc1 -triple aarch64 -target-feature +bf16 -target-feature +sme 
-target-feature +sme2 -disable-O0-optnone -Werror -Wall -emit-llvm -o - %s | 
opt -S -passes=mem2reg,tailcallelim | FileCheck %s
+// RUN: %clang_cc1 -triple aarch64 -target-feature +bf16 -target-feature +sme 
-target-feature +sve -target-feature +sve2 -target-feature +sve2p1 
-disable-O0-optnone -Werror -Wall -emit-llvm -o - %s | opt -S 
-passes=mem2reg,tailcallelim | FileCheck %s
+// RUN: %clang_cc1 -triple aarch64 -target-feature +bf16 -target-feature +sve 
-target-feature +sme -target-feature +sme2 -disable-O0-optnone -Werror -Wall 
-emit-llvm -o - %s | opt -S -passes=mem2reg,tailcallelim | FileCheck %s
 // RUN: %clang_cc1 -triple aarch64 -target-feature +sve -target-feature +sve2 
-target-feature +sve2p1 -disable-O0-optnone -Werror -Wall -emit-llvm -o - -x 
c++ %s | opt -S -passes=mem2reg,tailcallelim | FileCheck %s 
-check-prefix=CPP-CHECK
 // RUN: %clang_cc1 -DSVE_OVERLOADED_FORMS -triple aarch64 -target-feature +sve 
-target-feature +sve2 -target-feature +sve2p1 -disable-O0-optnone -Werror -Wall 
-emit-llvm -o - %s | opt -S -passes=mem2reg,tailcallelim | FileCheck %s
 // RUN: %clang_cc1 -DSVE_OVERLOADED_FORMS -triple aarch64 -target-feature +sve 
-target-feature +sve2 -target-feature +sve2p1 -disable-O0-optnone -Werror -Wall 
-emit-llvm -o - -x c++ %s | opt -S -passes=mem2reg,tailcallelim | FileCheck %s 
-check-prefix=CPP-CHECK
@@ -14,7 +16,9 @@
 #define SVE_ACLE_FUNC(A1,A2,A3) A1##A2##A3
 #endif
 
-#ifdef __ARM_FEATURE_SME
+#if defined(__ARM_FEATURE_SME) && defined(__ARM_FEATURE_SVE)
+#define ATTR __arm_streaming_compatible
+#elif defined(__ARM_FEATURE_SME)
 #define ATTR __arm_streaming
 #else
 #define ATTR
diff --git 
a/clang/test/Sema/aarch64-streaming-sme-or-nonstreaming-sve-builtins.c 
b/clang/test/Sema/aarch64-streaming-sme-or-nonstreaming-sve-builtins.c
index 792d79ee3e600..b873169f57e86 100644
--- a/clang/test/Sema/aarch64-streaming-sme-or-nonstreaming-sve-builtins.c
+++ b/clang/test/Sema/aarch64-streaming-sme-or-nonstreaming-sve-builtins.c
@@ -1,5 +1,6 @@
 // NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py
 // RUN: %clang_cc1 -triple aarch64-none-linux-gnu -target-feature +sve 
-fsyntax-only -verify %s
+// expected-no-diagnostics
 
 // REQUIRES: aarch64-registered-target
 
@@ -44,24 +45,22 @@ svbfloat16_t good7(svbfloat16_t a, svbfloat16_t b, 
svbfloat16_t c) __arm_streami
     return svclamp_bf16(a, b, c);
 }
 
-// Without '+sme2', the builtin is only valid in non-streaming mode.
+// SVE features flags can enable streaming builtins.
 __attribute__((target("+sve2p1,+sme")))
-svfloat32_t bad1(svfloat32_t a, svfloat32_t b, svfloat32_t c) __arm_streaming {
-  return svclamp(a, b, c) + svclamp(a, b, c); // expected-error{{builtin can 
only be called from a non-streaming function}} \
-                                              // expected-error{{builtin can 
only be called from a non-streaming function}}
+svfloat32_t good8(svfloat32_t a, svfloat32_t b, svfloat32_t c) __arm_streaming 
{
+  return svclamp(a, b, c) + svclamp(a, b, c);
 }
 
-// Without '+sve2p1', the builtin is only valid in streaming mode.
-__attribute__((target("+sve2,+sme2")))
-svfloat32_t bad2(svfloat32_t a, svfloat32_t b, svfloat32_t c) {
-  return svclamp(a, b, c) + svclamp(a, b, c); // expected-error{{builtin can 
only be called from a streaming function}} \
-                                              // expected-error{{builtin can 
only be called from a streaming function}}
+// SME features flags can enable non-streaming builtins.
+__attribute__((target("+sve,+sme2")))
+svfloat32_t good9(svfloat32_t a, svfloat32_t b, svfloat32_t c) {
+  return svclamp(a, b, c) + svclamp(a, b, c);
 }
 
-__attribute__((target("+sve2,+sme2")))
-svfloat32_t bad4(svfloat32_t a, svfloat32_t b, svfloat32_t c) 
__arm_streaming_compatible {
-  return svclamp(a, b, c) + svclamp(a, b, c); // expected-error{{builtin can 
only be called from a streaming function}} \
-                                              // expected-error{{builtin can 
only be called from a streaming function}}
+// SME features flags can enable streaming-compatible builtins.
+__attribute__((target("+sve,+sme2")))
+svfloat32_t good10(svfloat32_t a, svfloat32_t b, svfloat32_t c) 
__arm_streaming_compatible {
+  return svclamp(a, b, c) + svclamp(a, b, c);
 }
 
 // We don't want a warning about undefined behaviour if none of the feature 
requirements of the builtin are satisfied.

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