[CI-NOTIFY]: TCWG Bisect tcwg_gnu/gnu-master-arm-check_bootstrap - Build # 71 - Successful! - linaro-toolchain

6 Jul 2021

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 ubizjak@gmail.com
Date:   Tue Jun 29 19:14:35 2021 +0200
i386: Add V2SFmode vec_addsub pattern [PR95046]
gcc/
2021-06-21  Uroš Bizjak  ubizjak@gmail.com
PR target/95046
            * config/i386/mmx.md (vec_addsubv2sf3): New insn pattern.
gcc/testsuite/
2021-06-21  Uroš Bizjak  ubizjak@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/...
Artifacts of first_bad build: https://ci.linaro.org/job/tcwg_gcc-bisect-gnu-master-arm-check_bootstrap/71/...
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/... --fail
curl -o artifacts/manifests/build-parameters.sh https://ci.linaro.org/job/tcwg_gcc-bisect-gnu-master-arm-check_bootstrap/71/... --fail
curl -o artifacts/test.sh https://ci.linaro.org/job/tcwg_gcc-bisect-gnu-master-arm-check_bootstrap/71/... --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/c...
Artifacts: https://ci.linaro.org/job/tcwg_gcc-bisect-gnu-master-arm-check_bootstrap/71/...
Build log: https://ci.linaro.org/job/tcwg_gcc-bisect-gnu-master-arm-check_bootstrap/71/...
Full commit (up to 1000 lines):
<cut>
commit c60d9160b4d966dbea5b1bbea4f817c64d0bee2d
Author: Uros Bizjak ubizjak@gmail.com
Date:   Tue Jun 29 19:14:35 2021 +0200
i386: Add V2SFmode vec_addsub pattern [PR95046]
gcc/
2021-06-21  Uroš Bizjak  ubizjak@gmail.com
PR target/95046
            * config/i386/mmx.md (vec_addsubv2sf3): New insn pattern.
gcc/testsuite/
2021-06-21  Uroš Bizjak  ubizjak@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>

    