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| author | Stefan Schulze Frielinghaus <stefansf@linux.ibm.com> | 2024-05-02 08:39:32 +0200 |
|---|---|---|
| committer | Stefan Schulze Frielinghaus <stefansf@linux.ibm.com> | 2024-05-02 08:39:32 +0200 |
| commit | 6c4a745c6910659a75d1881cf3c4128f24b5666f (patch) | |
| tree | ce1fdc2dc53b4ab5e1add87a5b5aee0fe43daa4e /gcc | |
| parent | bbe83599320288025a417c54d9afcb3885cb2766 (diff) | |
| download | gcc-6c4a745c6910659a75d1881cf3c4128f24b5666f.zip gcc-6c4a745c6910659a75d1881cf3c4128f24b5666f.tar.gz gcc-6c4a745c6910659a75d1881cf3c4128f24b5666f.tar.bz2 | |
s390: testsuite: Fix zero_bits_compound-1.c
Starting with r12-2731-g96146e61cd7aee we do not generate code like
_5 = (unsigned int) c_2(D);
i_6 = _5 << 8;
_7 = _5 << 20;
i_8 = i_6 | _7;
anymore but instead
_5 = (unsigned int) c_2(D);
_3 = _5 * 1048832;
which leads finally to slightly different assembly code where we
previously ended up for z10 or newer with
lr %r1,%r2
sll %r1,8
rosbg %r1,%r2,32,43,20
llgfr %r2,%r1
br %r14
and now
lr %r1,%r2
sll %r1,12
ar %r2,%r1
risbg %r2,%r2,35,128+55,8
br %r14
The zero-extend materializes via risbg for which the pattern contains an
"and" which is why the test fails. Thus, instead of scanning for RTL
expressions rather scan for assembler instructions for s390.
gcc/testsuite/ChangeLog:
* gcc.dg/zero_bits_compound-1.c: Fix for s390.
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/testsuite/gcc.dg/zero_bits_compound-1.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/gcc/testsuite/gcc.dg/zero_bits_compound-1.c b/gcc/testsuite/gcc.dg/zero_bits_compound-1.c index e715949..f1e267e 100644 --- a/gcc/testsuite/gcc.dg/zero_bits_compound-1.c +++ b/gcc/testsuite/gcc.dg/zero_bits_compound-1.c @@ -39,4 +39,5 @@ unsigned long bar (unsigned char c) } /* Check that no pattern containing an AND expression was used. */ -/* { dg-final { scan-assembler-not "\\(and:" } } */ +/* { dg-final { scan-assembler-not "\\(and:" { target { ! { s390*-*-* } } } } } */ +/* { dg-final { scan-assembler-not "\\tng?rk?\\t" { target { s390*-*-* } } } } */ |