@@ -5980,6 +5987,64 @@ RValue CodeGenFunction::EmitCall(const CGFunctionInfo
&CallInfo,
return Ret;
}
+static bool endsWithRoundingModeSuffix(StringRef FuncName) {
+ size_t Underscore = FuncName.find_last_of("_");
+ if (Underscore == StringRef::npos || Underscore < 2)
+
@@ -5980,6 +5987,64 @@ RValue CodeGenFunction::EmitCall(const CGFunctionInfo
&CallInfo,
return Ret;
}
+static bool endsWithRoundingModeSuffix(StringRef FuncName) {
+ size_t Underscore = FuncName.find_last_of("_");
+ if (Underscore == StringRef::npos || Underscore < 2)
+
@@ -1232,6 +1232,14 @@ class TargetInfo : public TransferrableTargetInfo,
return true;
}
+ /// Returns true, if an operations that depends on rounding mode can be
+ /// implemented without changing FP environment. In this case the rounding
+ /// mode is encoded in the
https://github.com/jcranmer-intel commented:
Sorry for just thinking of this now, but we should also have tests for some of
the builtins like `__builtin_fma` or `__builtin_sqrt`.
https://github.com/llvm/llvm-project/pull/89617
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https://github.com/jcranmer-intel edited
https://github.com/llvm/llvm-project/pull/89617
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spavloff wrote:
> 7.6.2p4 does clearly state that floating constants need to be evaluated
> according to the standard rounding mode, so that the constant 0.1 evaluates
> to a different value in FE_DOWNWARD versus FE_UPWARD.
Treatment of floating-point constants is fixed in
https://github.com/
https://github.com/spavloff edited
https://github.com/llvm/llvm-project/pull/89617
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https://github.com/spavloff updated
https://github.com/llvm/llvm-project/pull/89617
>From ec8838685fb7af618445c3ff1bae953778996c37 Mon Sep 17 00:00:00 2001
From: Serge Pavlov
Date: Thu, 14 Apr 2022 18:00:14 +0700
Subject: [PATCH 1/3] Implementation of '#pragma STDC FENV_ROUND'
This pragma is i
https://github.com/jcranmer-intel requested changes to this pull request.
I haven't fully tested the changes yet, so right now I'm looking at the test to
figure out how much is supported. Nevertheless, I can already tell that this is
not complete support.
7.6.2p4 does clearly state that floati
https://github.com/spavloff updated
https://github.com/llvm/llvm-project/pull/89617
>From 0fc5c57264ecf51f8b9fe8303520a51cb1fee40e Mon Sep 17 00:00:00 2001
From: Serge Pavlov
Date: Thu, 14 Apr 2022 18:00:14 +0700
Subject: [PATCH 1/2] Implementation of '#pragma STDC FENV_ROUND'
This pragma is i
@@ -0,0 +1,160 @@
+// RUN: %clang_cc1 -S -triple x86_64-linux-gnu -emit-llvm %s -o - | \
+// RUN: FileCheck %s --implicit-check-not "call void @llvm.set.rounding"
--implicit-check-not "call i32 @llvm.get.rounding"
+
+float func_rz_ru(float w, float x, float y, float z) {
+ #pr
@@ -1257,9 +1257,6 @@ def ext_stdc_pragma_ignored : ExtWarn<"unknown pragma in
STDC namespace">,
// The C standard 7.6.1p2 says "The [FENV_ACCESS] pragma shall occur either
zahiraam wrote:
This comment can be removed I think.
https://github.com/llvm/llvm-proje
@@ -0,0 +1,160 @@
+// RUN: %clang_cc1 -S -triple x86_64-linux-gnu -emit-llvm %s -o - | \
+// RUN: FileCheck %s --implicit-check-not "call void @llvm.set.rounding"
--implicit-check-not "call i32 @llvm.get.rounding"
+
+float func_rz_ru(float w, float x, float y, float z) {
+ #pr
zahiraam wrote:
How about adding `pragma STDC FENV_ROUND` at file scope and some C++ tests
(with default argument in functions).
https://github.com/llvm/llvm-project/pull/89617
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https://github.com/spavloff updated
https://github.com/llvm/llvm-project/pull/89617
>From 0fc5c57264ecf51f8b9fe8303520a51cb1fee40e Mon Sep 17 00:00:00 2001
From: Serge Pavlov
Date: Thu, 14 Apr 2022 18:00:14 +0700
Subject: [PATCH] Implementation of '#pragma STDC FENV_ROUND'
This pragma is intro
https://github.com/spavloff updated
https://github.com/llvm/llvm-project/pull/89617
>From fc7aab600c25b39b2df039c0cbcf517719736311 Mon Sep 17 00:00:00 2001
From: Serge Pavlov
Date: Thu, 14 Apr 2022 18:00:14 +0700
Subject: [PATCH] Implementation of '#pragma STDC FENV_ROUND'
This pragma is intro
github-actions[bot] wrote:
:warning: C/C++ code formatter, clang-format found issues in your code.
:warning:
You can test this locally with the following command:
``bash
git-clang-format --diff 37b7207651b44743909a427b5509bed5e6c21b59
58adf3643828272d071fd49195cfcf0b2164eb70 --
llvmbot wrote:
@llvm/pr-subscribers-clang-codegen
Author: Serge Pavlov (spavloff)
Changes
This pragma is introduced by forthcoming C2x standard and can be used to set
particular rounding mode without need to call 'fesetmode' or accessing control
mode registers directly. Previously this p
https://github.com/spavloff created
https://github.com/llvm/llvm-project/pull/89617
This pragma is introduced by forthcoming C2x standard and can be used to set
particular rounding mode without need to call 'fesetmode' or accessing control
mode registers directly. Previously this pragma was im
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