On Linux/x86_64,
0a140730c970870a5125beb1114f6c01679a040e is the first bad commit
commit 0a140730c970870a5125beb1114f6c01679a040e
Author: Roger Sayle <ro...@nextmovesoftware.com>
Date: Mon Nov 13 09:05:16 2023 +0000
i386: Improve reg pressure of double word right shift then truncate.
caused
FAIL: 20_util/duration/io.cc -std=gnu++20 execution test
FAIL: 20_util/duration/io.cc -std=gnu++26 execution test
FAIL: 20_util/to_chars/1.cc -std=gnu++17 execution test
FAIL: c-c++-common/dfp/convert-bfp-10.c execution test
FAIL: c-c++-common/dfp/convert-bfp-10.c -std=c++14 execution test
FAIL: c-c++-common/dfp/convert-bfp-10.c -std=c++17 execution test
FAIL: c-c++-common/dfp/convert-bfp-10.c -std=c++20 execution test
FAIL: c-c++-common/dfp/convert-bfp-10.c -std=c++98 execution test
FAIL: c-c++-common/dfp/convert-bfp-2.c execution test
FAIL: c-c++-common/dfp/convert-bfp-2.c -std=c++14 execution test
FAIL: c-c++-common/dfp/convert-bfp-2.c -std=c++17 execution test
FAIL: c-c++-common/dfp/convert-bfp-2.c -std=c++20 execution test
FAIL: c-c++-common/dfp/convert-bfp-2.c -std=c++98 execution test
FAIL: c-c++-common/dfp/convert-bfp-3.c execution test
FAIL: c-c++-common/dfp/convert-bfp-3.c -std=c++14 execution test
FAIL: c-c++-common/dfp/convert-bfp-3.c -std=c++17 execution test
FAIL: c-c++-common/dfp/convert-bfp-3.c -std=c++20 execution test
FAIL: c-c++-common/dfp/convert-bfp-3.c -std=c++98 execution test
FAIL: c-c++-common/dfp/convert-bfp-4.c execution test
FAIL: c-c++-common/dfp/convert-bfp-4.c -std=c++14 execution test
FAIL: c-c++-common/dfp/convert-bfp-4.c -std=c++17 execution test
FAIL: c-c++-common/dfp/convert-bfp-4.c -std=c++20 execution test
FAIL: c-c++-common/dfp/convert-bfp-4.c -std=c++98 execution test
FAIL: gcc.c-torture/execute/pr60822.c -O1 execution test
FAIL: gcc.c-torture/execute/pr60822.c -O2 execution test
FAIL: gcc.c-torture/execute/pr60822.c -O2 -flto -fno-use-linker-plugin
-flto-partition=none execution test
FAIL: gcc.c-torture/execute/pr60822.c -O3 -g execution test
FAIL: gcc.c-torture/execute/pr60822.c -Os execution test
FAIL: gcc.dg/torture/fp-int-convert-float32-timode.c -O0 execution test
FAIL: gcc.dg/torture/fp-int-convert-float32-timode.c -O1 execution test
FAIL: gcc.dg/torture/fp-int-convert-float32-timode.c -O2 execution test
FAIL: gcc.dg/torture/fp-int-convert-float32-timode.c -O2 -flto
-fno-use-linker-plugin -flto-partition=none execution test
FAIL: gcc.dg/torture/fp-int-convert-float32-timode.c -O2 -flto
-fuse-linker-plugin -fno-fat-lto-objects execution test
FAIL: gcc.dg/torture/fp-int-convert-float32-timode.c -O3 -g execution test
FAIL: gcc.dg/torture/fp-int-convert-float32-timode.c -Os execution test
FAIL: gcc.dg/torture/fp-int-convert-float32x-timode.c -O0 execution test
FAIL: gcc.dg/torture/fp-int-convert-float32x-timode.c -O1 execution test
FAIL: gcc.dg/torture/fp-int-convert-float32x-timode.c -O2 execution test
FAIL: gcc.dg/torture/fp-int-convert-float32x-timode.c -O2 -flto
-fno-use-linker-plugin -flto-partition=none execution test
FAIL: gcc.dg/torture/fp-int-convert-float32x-timode.c -O2 -flto
-fuse-linker-plugin -fno-fat-lto-objects execution test
FAIL: gcc.dg/torture/fp-int-convert-float32x-timode.c -O3 -g execution test
FAIL: gcc.dg/torture/fp-int-convert-float32x-timode.c -Os execution test
FAIL: gcc.dg/torture/fp-int-convert-float64-timode.c -O0 execution test
FAIL: gcc.dg/torture/fp-int-convert-float64-timode.c -O1 execution test
FAIL: gcc.dg/torture/fp-int-convert-float64-timode.c -O2 execution test
FAIL: gcc.dg/torture/fp-int-convert-float64-timode.c -O2 -flto
-fno-use-linker-plugin -flto-partition=none execution test
FAIL: gcc.dg/torture/fp-int-convert-float64-timode.c -O2 -flto
-fuse-linker-plugin -fno-fat-lto-objects execution test
FAIL: gcc.dg/torture/fp-int-convert-float64-timode.c -O3 -g execution test
FAIL: gcc.dg/torture/fp-int-convert-float64-timode.c -Os execution test
FAIL: gcc.dg/torture/fp-int-convert-timode.c -O0 execution test
FAIL: gcc.dg/torture/fp-int-convert-timode.c -O1 execution test
FAIL: gcc.dg/torture/fp-int-convert-timode.c -O2 execution test
FAIL: gcc.dg/torture/fp-int-convert-timode.c -O2 -flto -fno-use-linker-plugin
-flto-partition=none execution test
FAIL: gcc.dg/torture/fp-int-convert-timode.c -O2 -flto -fuse-linker-plugin
-fno-fat-lto-objects execution test
FAIL: gcc.dg/torture/fp-int-convert-timode.c -O3 -g execution test
FAIL: gcc.dg/torture/fp-int-convert-timode.c -Os execution test
FAIL: std/time/exceptions.cc -std=gnu++20 execution test
FAIL: std/time/exceptions.cc -std=gnu++26 execution test
FAIL: std/time/format.cc -std=gnu++20 execution test
FAIL: std/time/format.cc -std=gnu++26 execution test
with GCC configured with
../../gcc/configure
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-5385/usr
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl
--enable-libmpx x86_64-linux --disable-bootstrap
To reproduce:
$ cd {build_dir}/x86_64-linux/libstdc++-v3/testsuite && make check
RUNTESTFLAGS="conformance.exp=20_util/duration/io.cc
--target_board='unix{-m32}'"
$ cd {build_dir}/x86_64-linux/libstdc++-v3/testsuite && make check
RUNTESTFLAGS="conformance.exp=20_util/duration/io.cc --target_board='unix{-m32\
-march=cascadelake}'"
$ cd {build_dir}/x86_64-linux/libstdc++-v3/testsuite && make check
RUNTESTFLAGS="conformance.exp=20_util/to_chars/1.cc --target_board='unix{-m32}'"
$ cd {build_dir}/x86_64-linux/libstdc++-v3/testsuite && make check
RUNTESTFLAGS="conformance.exp=20_util/to_chars/1.cc --target_board='unix{-m32\
-march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="dfp.exp=c-c++-common/dfp/convert-bfp-10.c
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="dfp.exp=c-c++-common/dfp/convert-bfp-10.c
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="dfp.exp=c-c++-common/dfp/convert-bfp-2.c
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="dfp.exp=c-c++-common/dfp/convert-bfp-2.c
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="dfp.exp=c-c++-common/dfp/convert-bfp-3.c
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="dfp.exp=c-c++-common/dfp/convert-bfp-3.c
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="dfp.exp=c-c++-common/dfp/convert-bfp-4.c
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="dfp.exp=c-c++-common/dfp/convert-bfp-4.c
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="execute.exp=gcc.c-torture/execute/pr60822.c
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="execute.exp=gcc.c-torture/execute/pr60822.c
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="dg-torture.exp=gcc.dg/torture/fp-int-convert-float32-timode.c
--target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="dg-torture.exp=gcc.dg/torture/fp-int-convert-float32-timode.c
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="dg-torture.exp=gcc.dg/torture/fp-int-convert-float32x-timode.c
--target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="dg-torture.exp=gcc.dg/torture/fp-int-convert-float32x-timode.c
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="dg-torture.exp=gcc.dg/torture/fp-int-convert-float64-timode.c
--target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="dg-torture.exp=gcc.dg/torture/fp-int-convert-float64-timode.c
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="dg-torture.exp=gcc.dg/torture/fp-int-convert-timode.c
--target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="dg-torture.exp=gcc.dg/torture/fp-int-convert-timode.c
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/x86_64-linux/libstdc++-v3/testsuite && make check
RUNTESTFLAGS="conformance.exp=std/time/exceptions.cc
--target_board='unix{-m32}'"
$ cd {build_dir}/x86_64-linux/libstdc++-v3/testsuite && make check
RUNTESTFLAGS="conformance.exp=std/time/exceptions.cc --target_board='unix{-m32\
-march=cascadelake}'"
$ cd {build_dir}/x86_64-linux/libstdc++-v3/testsuite && make check
RUNTESTFLAGS="conformance.exp=std/time/format.cc --target_board='unix{-m32}'"
$ cd {build_dir}/x86_64-linux/libstdc++-v3/testsuite && make check
RUNTESTFLAGS="conformance.exp=std/time/format.cc --target_board='unix{-m32\
-march=cascadelake}'"
(Please do not reply to this email, for question about this report, contact me
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)
