Successfully identified regression in *gcc* in CI configuration
tcwg_gnu/gnu-master-arm-check_bootstrap. So far, this commit has regressed CI
configurations:
- tcwg_gnu/gnu-master-arm-check_bootstrap
Culprit:
<cut>
commit c60d9160b4d966dbea5b1bbea4f817c64d0bee2d
Author: Uros Bizjak <ubiz...@gmail.com>
Date: Tue Jun 29 19:14:35 2021 +0200
i386: Add V2SFmode vec_addsub pattern [PR95046]
gcc/
2021-06-21 Uroš Bizjak <ubiz...@gmail.com>
PR target/95046
* config/i386/mmx.md (vec_addsubv2sf3): New insn pattern.
gcc/testsuite/
2021-06-21 Uroš Bizjak <ubiz...@gmail.com>
PR target/95046
* gcc.target/i386/pr95046-9.c: New test.
</cut>
Results regressed to (for first_bad == c60d9160b4d966dbea5b1bbea4f817c64d0bee2d)
# reset_artifacts:
-10
# build_abe bootstrap:
0
# build_abe check_bootstrap:
1
# # Comparing directories
# # REFERENCE: base-artifacts/sumfiles
# # CURRENT:
/home/tcwg-buildslave/workspace/tcwg_gnu_2/artifacts/build-c60d9160b4d966dbea5b1bbea4f817c64d0bee2d/sumfiles
#
# # Comparing 12 common sum files:
# g++.sum
# gcc.sum
# gfortran.sum
# go.sum
# gotools.sum
# libatomic.sum
# libffi.sum
# libgo.sum
# libgomp.sum
# libitm.sum
# libstdc++.sum
# objc.sum
# Comparing:
# REFERENCE:/tmp/gxx-sum1.3448361
# CURRENT: /tmp/gxx-sum2.3448361
#
# ` +---------+---------+
# o RUN STATUS: | REF | RES |
# +------------------------------------------+---------+---------+
# | Passes [PASS] | 460521 | 460519 |
# | Unexpected fails [FAIL] | 195 | 197 |
# | Errors [ERROR] | 0 | 0 |
# | Unexpected passes [XPASS] | 15 | 15 |
# | Expected fails [XFAIL] | 2737 | 2737 |
# | Unresolved [UNRESOLVED] | 104 | 104 |
# | Unsupported [UNSUPPORTED] | 22896 | 22896 |
# | Untested [UNTESTED] | 10 | 10 |
# +------------------------------------------+---------+---------+
#
# REF PASS ratio: 0.952269
# RES PASS ratio: 0.952265
#
# o REGRESSIONS:
# +------------------------------------------+---------+
# | PASS now FAIL [PASS => FAIL] | 1 |
# | FAIL appears [ => FAIL] | 1 |
# +------------------------------------------+---------+
# | TOTAL_REGRESSIONS | 2 |
# +------------------------------------------+---------+
#
# - PASS now FAIL [PASS => FAIL]:
#
# Executed from: g++.dg/dg.exp
# g++:g++.dg/warn/Wextra-semi.C -std=gnu++14 (test for excess errors)
#
#
# - FAIL appears [ => FAIL]:
#
# Executed from: g++.dg/dg.exp
# g++:g++.dg/warn/Wextra-semi.C -std=gnu++14 expected multiline pattern
lines 21-23 not found: " friend void bar\(\) \{\};.*\n
\^\n -.*\n"
#
#
#
# o IMPROVEMENTS TO BE CHECKED:
# +------------------------------------------+---------+
# | PASS disappears [PASS => ] | 1 |
# +------------------------------------------+---------+
# | TOTAL_IMPROVEMENTS_TO_BE_CHECKED | 1 |
# +------------------------------------------+---------+
#
# - PASS disappears [PASS => ]:
#
# Executed from: g++.dg/dg.exp
# g++:g++.dg/warn/Wextra-semi.C -std=gnu++14 expected multiline pattern
lines 21-23 was found: " friend void bar\(\) \{\};.*\n
\^\n -.*\n"
#
#
#
# # Regressions found
# # Regressions in 12 common sum files found
from (for last_good == c0f8c22a3e9f8cd45c1cb4be5f83afbebe3bfdc9)
# reset_artifacts:
-10
# build_abe bootstrap:
0
# build_abe check_bootstrap:
1
Artifacts of last_good build:
https://ci.linaro.org/job/tcwg_gcc-bisect-gnu-master-arm-check_bootstrap/71/artifact/artifacts/build-c0f8c22a3e9f8cd45c1cb4be5f83afbebe3bfdc9/
Artifacts of first_bad build:
https://ci.linaro.org/job/tcwg_gcc-bisect-gnu-master-arm-check_bootstrap/71/artifact/artifacts/build-c60d9160b4d966dbea5b1bbea4f817c64d0bee2d/
Build top page/logs:
https://ci.linaro.org/job/tcwg_gcc-bisect-gnu-master-arm-check_bootstrap/71/
Configuration details:
Reproduce builds:
<cut>
mkdir investigate-gcc-c60d9160b4d966dbea5b1bbea4f817c64d0bee2d
cd investigate-gcc-c60d9160b4d966dbea5b1bbea4f817c64d0bee2d
git clone https://git.linaro.org/toolchain/jenkins-scripts
mkdir -p artifacts/manifests
curl -o artifacts/manifests/build-baseline.sh
https://ci.linaro.org/job/tcwg_gcc-bisect-gnu-master-arm-check_bootstrap/71/artifact/artifacts/manifests/build-baseline.sh
--fail
curl -o artifacts/manifests/build-parameters.sh
https://ci.linaro.org/job/tcwg_gcc-bisect-gnu-master-arm-check_bootstrap/71/artifact/artifacts/manifests/build-parameters.sh
--fail
curl -o artifacts/test.sh
https://ci.linaro.org/job/tcwg_gcc-bisect-gnu-master-arm-check_bootstrap/71/artifact/artifacts/test.sh
--fail
chmod +x artifacts/test.sh
# Reproduce the baseline build (build all pre-requisites)
./jenkins-scripts/tcwg_gnu-build.sh @@ artifacts/manifests/build-baseline.sh
cd gcc
# Reproduce first_bad build
git checkout --detach c60d9160b4d966dbea5b1bbea4f817c64d0bee2d
../artifacts/test.sh
# Reproduce last_good build
git checkout --detach c0f8c22a3e9f8cd45c1cb4be5f83afbebe3bfdc9
../artifacts/test.sh
cd ..
</cut>
History of pending regressions and results:
https://git.linaro.org/toolchain/ci/base-artifacts.git/log/?h=linaro-local/ci/tcwg_gnu/gnu-master-arm-check_bootstrap
Artifacts:
https://ci.linaro.org/job/tcwg_gcc-bisect-gnu-master-arm-check_bootstrap/71/artifact/artifacts/
Build log:
https://ci.linaro.org/job/tcwg_gcc-bisect-gnu-master-arm-check_bootstrap/71/consoleText
Full commit (up to 1000 lines):
<cut>
commit c60d9160b4d966dbea5b1bbea4f817c64d0bee2d
Author: Uros Bizjak <ubiz...@gmail.com>
Date: Tue Jun 29 19:14:35 2021 +0200
i386: Add V2SFmode vec_addsub pattern [PR95046]
gcc/
2021-06-21 Uroš Bizjak <ubiz...@gmail.com>
PR target/95046
* config/i386/mmx.md (vec_addsubv2sf3): New insn pattern.
gcc/testsuite/
2021-06-21 Uroš Bizjak <ubiz...@gmail.com>
PR target/95046
* gcc.target/i386/pr95046-9.c: New test.
---
gcc/config/i386/mmx.md | 18 ++++++++++++++++++
gcc/testsuite/gcc.target/i386/pr95046-9.c | 14 ++++++++++++++
2 files changed, 32 insertions(+)
diff --git a/gcc/config/i386/mmx.md b/gcc/config/i386/mmx.md
index e887f03474d..5f10572718d 100644
--- a/gcc/config/i386/mmx.md
+++ b/gcc/config/i386/mmx.md
@@ -788,6 +788,24 @@
(set_attr "prefix_extra" "1")
(set_attr "mode" "V2SF")])
+(define_insn "vec_addsubv2sf3"
+ [(set (match_operand:V2SF 0 "register_operand" "=x,x")
+ (vec_merge:V2SF
+ (minus:V2SF
+ (match_operand:V2SF 1 "register_operand" "0,x")
+ (match_operand:V2SF 2 "register_operand" "x,x"))
+ (plus:V2SF (match_dup 1) (match_dup 2))
+ (const_int 1)))]
+ "TARGET_SSE3 && TARGET_MMX_WITH_SSE"
+ "@
+ addsubps\t{%2, %0|%0, %2}
+ vaddsubps\t{%2, %1, %0|%0, %1, %2}"
+ [(set_attr "isa" "noavx,avx")
+ (set_attr "type" "sseadd")
+ (set_attr "prefix" "orig,vex")
+ (set_attr "prefix_rep" "1,*")
+ (set_attr "mode" "V4SF")])
+
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;
;; Parallel single-precision floating point comparisons
diff --git a/gcc/testsuite/gcc.target/i386/pr95046-9.c
b/gcc/testsuite/gcc.target/i386/pr95046-9.c
new file mode 100644
index 00000000000..54e948ccfb0
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/pr95046-9.c
@@ -0,0 +1,14 @@
+/* PR target/95046 */
+/* { dg-do compile { target { ! ia32 } } } */
+/* { dg-options "-O3 -msse3" } */
+
+float r[2], a[2], b[2];
+
+void
+test (void)
+{
+ r[0] = a[0] - b[0];
+ r[1] = a[1] + b[1];
+}
+
+/* { dg-final { scan-assembler "\tv?addsubps" } } */
</cut>
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