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| author | Andreas Krebbel <krebbel@gcc.gnu.org> | 2016-02-26 18:03:51 +0000 |
|---|---|---|
| committer | Andreas Krebbel <krebbel@gcc.gnu.org> | 2016-02-26 18:03:51 +0000 |
| commit | 1d11f7ce7081fc9e28ac0a66c6b3f6b7950971d6 (patch) | |
| tree | 9bc7b45d701ee6fee291c17fa3c83a83afa07473 /gcc/tree-sra.c | |
| parent | 27d39ae1cca01885262fa267879f341c473110e3 (diff) | |
| download | gcc-1d11f7ce7081fc9e28ac0a66c6b3f6b7950971d6.zip gcc-1d11f7ce7081fc9e28ac0a66c6b3f6b7950971d6.tar.gz gcc-1d11f7ce7081fc9e28ac0a66c6b3f6b7950971d6.tar.bz2 | |
S/390: PR69709 Fix risbg splitter
This fixes a wrong code generation problem with the splitters introduced
with that patch: https://gcc.gnu.org/ml/gcc-patches/2015-07/msg01840.html
The target operand is used as temporary. This fails if it matches the
source of the left shift which is read after writing the temporary.
Thanks to Dominik for debugging it and thanks to Richard for the fix!
Bootstrapped and regtested on s390x with-arch=z13.
Bye,
-Andreas-
gcc/ChangeLog:
2016-02-26 Richard Henderson <rth@redhat.com>
PR target/69709
* config/s390/s390.md (risbg and risbgn splitters): Allocate new
pseudo in case the target rtx matches the source of the left
shift.
gcc/testsuite/ChangeLog:
2016-02-26 Andreas Krebbel <krebbel@linux.vnet.ibm.com>
PR target/69709
* gcc.target/s390/pr69709.c: New test.
From-SVN: r233752
Diffstat (limited to 'gcc/tree-sra.c')
0 files changed, 0 insertions, 0 deletions