https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93738
Bug ID: 93738
Summary: [8/9 regression] test case
gcc.target/powerpc/20050603-3.c fails
Product: gcc
Version: 10.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: seurer at gcc dot gnu.org
Target Milestone: ---
git g:8d2d39587d941a40f25ea0144cceb677df115040, r9-3594
ok, this is an old issue that slipped past unnoticed somehow. It was
introduced in gcc 8 or maybe 9 but also then effects 10. I am not sure which
order the changes were done back in 8/9. There is an extra instruction,
rldicl, generated after the change in this test case.
Executing on host: /home/seurer/gcc/git/build/gcc-9-test-2/gcc/xgcc
-B/home/seurer/gcc/git/build/gcc-9-test-2/gcc/
/home/seurer/gcc/git/gcc-9-test-2/gcc/testsuite/gcc.target/powerpc/20050603-3.c
-fno-diagnostics-show-caret -fno-diagnostics-show-line-numbers
-fdiagnostics-color=never -O2 -ffat-lto-objects -fno-ident -S -o 20050603-3.s
(timeout = 300)
spawn -ignore SIGHUP /home/seurer/gcc/git/build/gcc-9-test-2/gcc/xgcc
-B/home/seurer/gcc/git/build/gcc-9-test-2/gcc/
/home/seurer/gcc/git/gcc-9-test-2/gcc/testsuite/gcc.target/powerpc/20050603-3.c
-fno-diagnostics-show-caret -fno-diagnostics-show-line-numbers
-fdiagnostics-color=never -O2 -ffat-lto-objects -fno-ident -S -o 20050603-3.s
PASS: gcc.target/powerpc/20050603-3.c (test for excess errors)
PASS: gcc.target/powerpc/20050603-3.c scan-assembler-not \\mrlwinm
FAIL: gcc.target/powerpc/20050603-3.c scan-assembler-not \\mrldic
PASS: gcc.target/powerpc/20050603-3.c scan-assembler-not \\mrot[lr]
PASS: gcc.target/powerpc/20050603-3.c scan-assembler-not \\ms[lr][wd]
PASS: gcc.target/powerpc/20050603-3.c scan-assembler-times \\mrl[wd]imi 1
Executing on host: /home/seurer/gcc/git/build/gcc-9-test-2/gcc/xgcc
-B/home/seurer/gcc/git/build/gcc-9-test-2/gcc/ vmx_hw_available76502.c
-fno-diagnostics-show-caret -fno-diagnostics-show-line-numbers
-fdiagnostics-color=never -mno-vsx -lm -o vmx_hw_available76502.exe
(timeout = 300)
spawn -ignore SIGHUP /home/seurer/gcc/git/build/gcc-9-test-2/gcc/xgcc
-B/home/seurer/gcc/git/build/gcc-9-test-2/gcc/ vmx_hw_available76502.c
-fno-diagnostics-show-caret -fno-diagnostics-show-line-numbers
-fdiagnostics-color=never -mno-vsx -lm -o vmx_hw_available76502.exe
Setting LD_LIBRARY_PATH to
:/home/seurer/gcc/git/build/gcc-9-test-2/gcc::/home/seurer/gcc/git/build/gcc-9-test-2/gcc:/home/seurer/gcc/git/build/gcc-9-test-2/./gmp/.libs:/home/seurer/gcc/git/build/gcc-9-test-2/./prev-gmp/.libs:/home/seurer/gcc/git/build/gcc-9-test-2/./mpfr/src/.libs:/home/seurer/gcc/git/build/gcc-9-test-2/./prev-mpfr/src/.libs:/home/seurer/gcc/git/build/gcc-9-test-2/./mpc/src/.libs:/home/seurer/gcc/git/build/gcc-9-test-2/./prev-mpc/src/.libs:/home/seurer/gcc/git/build/gcc-9-test-2/./isl/.libs:/home/seurer/gcc/git/build/gcc-9-test-2/./prev-isl/.libs:/home/seurer/gcc/install/gcc-7.4.0/lib64
Execution timeout is: 300
spawn [open ...]
testcase
/home/seurer/gcc/git/gcc-9-test-2/gcc/testsuite/gcc.target/powerpc/powerpc.exp
completed in 1 seconds
=== gcc Summary ===
# of expected passes 5
# of unexpected failures 1
/* This should generate a single rl[wd]imi. */
void rotins (unsigned int x)
{
b.y = (x<<12) | (x>>20);
}
Before the change:
addis 10,2,.LC0@toc@ha
ld 10,.LC0@toc@l(10)
lwz 9,0(10)
rlwimi 9,3,20,20,23
stw 9,0(10)
blr
After the change:
addis 10,2,.LC0@toc@ha
ld 10,.LC0@toc@l(10)
*** rldicl 9,3,52,32
lwz 3,0(10)
rlwimi 3,9,0,3840
stw 3,0(10)
blr
