On Linux/x86_64,
a25e0b5e6ac8a77a71c229e0a7b744603365b0e9 is the first bad commit
commit a25e0b5e6ac8a77a71c229e0a7b744603365b0e9
Author: qing zhao <qing.z...@oracle.com>
Date: Thu Sep 9 15:44:49 2021 -0700
Add -ftrivial-auto-var-init option and uninitialized variable attribute.
caused
FAIL: c-c++-common/auto-init-1.c -std=gnu++14 scan-tree-dump gimple "temp5 =
.DEFERRED_INIT \\(8, 2, 0\\)"
FAIL: c-c++-common/auto-init-1.c -std=gnu++14 scan-tree-dump gimple "temp7 =
.DEFERRED_INIT \\(8, 2, 0\\)"
FAIL: c-c++-common/auto-init-1.c -std=gnu++17 scan-tree-dump gimple "temp5 =
.DEFERRED_INIT \\(8, 2, 0\\)"
FAIL: c-c++-common/auto-init-1.c -std=gnu++17 scan-tree-dump gimple "temp7 =
.DEFERRED_INIT \\(8, 2, 0\\)"
FAIL: c-c++-common/auto-init-1.c -std=gnu++2a scan-tree-dump gimple "temp5 =
.DEFERRED_INIT \\(8, 2, 0\\)"
FAIL: c-c++-common/auto-init-1.c -std=gnu++2a scan-tree-dump gimple "temp7 =
.DEFERRED_INIT \\(8, 2, 0\\)"
FAIL: c-c++-common/auto-init-1.c -std=gnu++98 scan-tree-dump gimple "temp5 =
.DEFERRED_INIT \\(8, 2, 0\\)"
FAIL: c-c++-common/auto-init-1.c -std=gnu++98 scan-tree-dump gimple "temp7 =
.DEFERRED_INIT \\(8, 2, 0\\)"
FAIL: c-c++-common/auto-init-1.c -Wc++-compat scan-tree-dump gimple "temp5 =
.DEFERRED_INIT \\(8, 2, 0\\)"
FAIL: c-c++-common/auto-init-1.c -Wc++-compat scan-tree-dump gimple "temp7 =
.DEFERRED_INIT \\(8, 2, 0\\)"
FAIL: c-c++-common/auto-init-2.c -std=gnu++14 scan-tree-dump gimple "temp5 =
.DEFERRED_INIT \\(8, 1, 0\\)"
FAIL: c-c++-common/auto-init-2.c -std=gnu++14 scan-tree-dump gimple "temp7 =
.DEFERRED_INIT \\(8, 1, 0\\)"
FAIL: c-c++-common/auto-init-2.c -std=gnu++17 scan-tree-dump gimple "temp5 =
.DEFERRED_INIT \\(8, 1, 0\\)"
FAIL: c-c++-common/auto-init-2.c -std=gnu++17 scan-tree-dump gimple "temp7 =
.DEFERRED_INIT \\(8, 1, 0\\)"
FAIL: c-c++-common/auto-init-2.c -std=gnu++2a scan-tree-dump gimple "temp5 =
.DEFERRED_INIT \\(8, 1, 0\\)"
FAIL: c-c++-common/auto-init-2.c -std=gnu++2a scan-tree-dump gimple "temp7 =
.DEFERRED_INIT \\(8, 1, 0\\)"
FAIL: c-c++-common/auto-init-2.c -std=gnu++98 scan-tree-dump gimple "temp5 =
.DEFERRED_INIT \\(8, 1, 0\\)"
FAIL: c-c++-common/auto-init-2.c -std=gnu++98 scan-tree-dump gimple "temp7 =
.DEFERRED_INIT \\(8, 1, 0\\)"
FAIL: c-c++-common/auto-init-2.c -Wc++-compat scan-tree-dump gimple "temp5 =
.DEFERRED_INIT \\(8, 1, 0\\)"
FAIL: c-c++-common/auto-init-2.c -Wc++-compat scan-tree-dump gimple "temp7 =
.DEFERRED_INIT \\(8, 1, 0\\)"
FAIL: c-c++-common/auto-init-3.c -std=gnu++14 scan-tree-dump gimple "temp3 =
.DEFERRED_INIT \\(16, 2, 0\\)"
FAIL: c-c++-common/auto-init-3.c -std=gnu++17 scan-tree-dump gimple "temp3 =
.DEFERRED_INIT \\(16, 2, 0\\)"
FAIL: c-c++-common/auto-init-3.c -std=gnu++2a scan-tree-dump gimple "temp3 =
.DEFERRED_INIT \\(16, 2, 0\\)"
FAIL: c-c++-common/auto-init-3.c -std=gnu++98 scan-tree-dump gimple "temp3 =
.DEFERRED_INIT \\(16, 2, 0\\)"
FAIL: c-c++-common/auto-init-3.c -Wc++-compat scan-tree-dump gimple "temp3 =
.DEFERRED_INIT \\(16, 2, 0\\)"
FAIL: c-c++-common/auto-init-4.c -std=gnu++14 scan-tree-dump gimple "temp3 =
.DEFERRED_INIT \\(16, 1, 0\\)"
FAIL: c-c++-common/auto-init-4.c -std=gnu++17 scan-tree-dump gimple "temp3 =
.DEFERRED_INIT \\(16, 1, 0\\)"
FAIL: c-c++-common/auto-init-4.c -std=gnu++2a scan-tree-dump gimple "temp3 =
.DEFERRED_INIT \\(16, 1, 0\\)"
FAIL: c-c++-common/auto-init-4.c -std=gnu++98 scan-tree-dump gimple "temp3 =
.DEFERRED_INIT \\(16, 1, 0\\)"
FAIL: c-c++-common/auto-init-4.c -Wc++-compat scan-tree-dump gimple "temp3 =
.DEFERRED_INIT \\(16, 1, 0\\)"
FAIL: c-c++-common/auto-init-5.c -std=gnu++14 scan-tree-dump gimple "temp3 =
.DEFERRED_INIT \\(32, 2, 0\\)"
FAIL: c-c++-common/auto-init-5.c -std=gnu++17 scan-tree-dump gimple "temp3 =
.DEFERRED_INIT \\(32, 2, 0\\)"
FAIL: c-c++-common/auto-init-5.c -std=gnu++2a scan-tree-dump gimple "temp3 =
.DEFERRED_INIT \\(32, 2, 0\\)"
FAIL: c-c++-common/auto-init-5.c -std=gnu++98 scan-tree-dump gimple "temp3 =
.DEFERRED_INIT \\(32, 2, 0\\)"
FAIL: c-c++-common/auto-init-5.c -Wc++-compat scan-tree-dump gimple "temp3 =
.DEFERRED_INIT \\(32, 2, 0\\)"
FAIL: c-c++-common/auto-init-6.c -std=gnu++14 scan-tree-dump gimple "temp3 =
.DEFERRED_INIT \\(32, 1, 0\\)"
FAIL: c-c++-common/auto-init-6.c -std=gnu++17 scan-tree-dump gimple "temp3 =
.DEFERRED_INIT \\(32, 1, 0\\)"
FAIL: c-c++-common/auto-init-6.c -std=gnu++2a scan-tree-dump gimple "temp3 =
.DEFERRED_INIT \\(32, 1, 0\\)"
FAIL: c-c++-common/auto-init-6.c -std=gnu++98 scan-tree-dump gimple "temp3 =
.DEFERRED_INIT \\(32, 1, 0\\)"
FAIL: c-c++-common/auto-init-6.c -Wc++-compat scan-tree-dump gimple "temp3 =
.DEFERRED_INIT \\(32, 1, 0\\)"
FAIL: c-c++-common/auto-init-padding-1.c -std=gnu++14 scan-tree-dump gimple
".DEFERRED_INIT \\(24, 1, 0\\)"
FAIL: c-c++-common/auto-init-padding-1.c -std=gnu++17 scan-tree-dump gimple
".DEFERRED_INIT \\(24, 1, 0\\)"
FAIL: c-c++-common/auto-init-padding-1.c -std=gnu++2a scan-tree-dump gimple
".DEFERRED_INIT \\(24, 1, 0\\)"
FAIL: c-c++-common/auto-init-padding-1.c -std=gnu++98 scan-tree-dump gimple
".DEFERRED_INIT \\(24, 1, 0\\)"
FAIL: c-c++-common/auto-init-padding-1.c -Wc++-compat scan-tree-dump gimple
".DEFERRED_INIT \\(24, 1, 0\\)"
FAIL: gcc.target/i386/auto-init-2.c scan-rtl-dump-times expand
"0xfefefefefefefefe" 3
FAIL: gcc.target/i386/auto-init-2.c scan-rtl-dump-times expand
"0xfffffffffefefefe" 2
FAIL: gcc.target/i386/auto-init-3.c scan-assembler-times pxor\t\\%xmm0, \\%xmm0
3
FAIL: gcc.target/i386/auto-init-4.c scan-rtl-dump-times expand
"\\[0xfefefefefefefefe\\]" 1
FAIL: gcc.target/i386/auto-init-4.c scan-rtl-dump-times expand
"0xfffffffffefefefe" 1
FAIL: gcc.target/i386/auto-init-4.c scan-rtl-dump-times expand
"0xfffffffffffffffe\\]\\) repeated x16" 1
FAIL: gcc.target/i386/auto-init-5.c scan-assembler-times \\.long\t0 14
FAIL: gcc.target/i386/auto-init-6.c scan-rtl-dump-times expand
"0xfffffffffffffffe\\]\\) repeated x16" 2
FAIL: gcc.target/i386/auto-init-padding-10.c scan-rtl-dump-times expand
"0xfffffffffffffffe\\]\\) repeated x16" 1
FAIL: gcc.target/i386/auto-init-padding-1.c scan-rtl-dump-times expand
"const_int 0 \\[0\\]\\) repeated x16" 1
FAIL: gcc.target/i386/auto-init-padding-2.c scan-rtl-dump-times expand
"0xfffffffffffffffe\\]\\) repeated x16" 1
FAIL: gcc.target/i386/auto-init-padding-3.c scan-assembler movl\t\\$0,
FAIL: gcc.target/i386/auto-init-padding-3.c scan-assembler movl\t\\$16,
FAIL: gcc.target/i386/auto-init-padding-3.c scan-assembler rep stosq
FAIL: gcc.target/i386/auto-init-padding-4.c scan-rtl-dump-times expand
"0xfffffffffffffffe\\]\\) repeated x16" 1
FAIL: gcc.target/i386/auto-init-padding-5.c scan-rtl-dump-times expand
"const_int 0 \\[0\\]\\) repeated x16" 1
FAIL: gcc.target/i386/auto-init-padding-6.c scan-rtl-dump-times expand
"0xfffffffffffffffe\\]\\) repeated x16" 1
FAIL: gcc.target/i386/auto-init-padding-7.c scan-assembler-times movq\t\\$0, 2
FAIL: gcc.target/i386/auto-init-padding-8.c scan-assembler-times movq\t\\$0, 2
FAIL: gcc.target/i386/auto-init-padding-9.c scan-assembler movl\t\\$0,
FAIL: gcc.target/i386/auto-init-padding-9.c scan-assembler rep stosq
with GCC configured with
../../gcc/configure
--prefix=/local/skpandey/gccwork/toolwork/gcc-bisect-master/master/r12-3433/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}/gcc && make check
RUNTESTFLAGS="dg.exp=c-c++-common/auto-init-1.c --target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="dg.exp=c-c++-common/auto-init-1.c --target_board='unix{-m32\
-march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="dg.exp=c-c++-common/auto-init-2.c --target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="dg.exp=c-c++-common/auto-init-2.c --target_board='unix{-m32\
-march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="dg.exp=c-c++-common/auto-init-3.c --target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="dg.exp=c-c++-common/auto-init-3.c --target_board='unix{-m32\
-march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="dg.exp=c-c++-common/auto-init-4.c --target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="dg.exp=c-c++-common/auto-init-4.c --target_board='unix{-m32\
-march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="dg.exp=c-c++-common/auto-init-5.c --target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="dg.exp=c-c++-common/auto-init-5.c --target_board='unix{-m32\
-march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="dg.exp=c-c++-common/auto-init-6.c --target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="dg.exp=c-c++-common/auto-init-6.c --target_board='unix{-m32\
-march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="dg.exp=c-c++-common/auto-init-padding-1.c
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="dg.exp=c-c++-common/auto-init-padding-1.c
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/auto-init-2.c
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/auto-init-2.c --target_board='unix{-m32\
-march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/auto-init-3.c --target_board='unix{-m32\
-march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/auto-init-3.c --target_board='unix{-m64\
-march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/auto-init-4.c
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/auto-init-4.c --target_board='unix{-m32\
-march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/auto-init-5.c
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/auto-init-5.c --target_board='unix{-m32\
-march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/auto-init-6.c --target_board='unix{-m64\
-march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/auto-init-padding-10.c
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/auto-init-padding-10.c
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/auto-init-padding-1.c
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/auto-init-padding-1.c
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/auto-init-padding-2.c
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/auto-init-padding-2.c
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/auto-init-padding-3.c
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/auto-init-padding-3.c
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/auto-init-padding-3.c
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/auto-init-padding-4.c
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/auto-init-padding-4.c
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/auto-init-padding-5.c
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/auto-init-padding-6.c
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/auto-init-padding-7.c
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/auto-init-padding-7.c
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/auto-init-padding-8.c
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/auto-init-padding-8.c
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/auto-init-padding-9.c
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/auto-init-padding-9.c
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/auto-init-padding-9.c
--target_board='unix{-m64\ -march=cascadelake}'"
(Please do not reply to this email, for question about this report, contact me
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