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| author | Andreas Krebbel <krebbel@linux.ibm.com> | 2019-12-06 19:30:37 +0000 |
|---|---|---|
| committer | Vladimir Makarov <vmakarov@gcc.gnu.org> | 2019-12-06 19:30:37 +0000 |
| commit | 1a880ef2110aaa2c03b6eb88ef792d324b89f566 (patch) | |
| tree | 3176b632a4cf2b3a4e28ab08d8c115f2ab50513b /gcc/rtlanal.c | |
| parent | 3ad4a03ac6127ac5b7656977d3e41deac0605bf3 (diff) | |
| download | gcc-1a880ef2110aaa2c03b6eb88ef792d324b89f566.zip gcc-1a880ef2110aaa2c03b6eb88ef792d324b89f566.tar.gz gcc-1a880ef2110aaa2c03b6eb88ef792d324b89f566.tar.bz2 | |
re PR rtl-optimization/92176 (LRA problem with reloads for subreg operands)
2019-12-06 Andreas Krebbel <krebbel@linux.ibm.com>
Vladimir Makarov <vmakarov@redhat.com>
PR rtl-optimization/92176
* lra.c (simplify_subreg_regno): Don't permit unconditional
changing mode for LRA too.
2019-12-06 Andreas Krebbel <krebbel@linux.ibm.com>
Vladimir Makarov <vmakarov@redhat.com>
PR rtl-optimization/92176
* gcc.target/s390/pr92176.c: New test.
Co-Authored-By: Vladimir Makarov <vmakarov@redhat.com>
From-SVN: r279061
Diffstat (limited to 'gcc/rtlanal.c')
| -rw-r--r-- | gcc/rtlanal.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/gcc/rtlanal.c b/gcc/rtlanal.c index 241a35b..b0c8cd5 100644 --- a/gcc/rtlanal.c +++ b/gcc/rtlanal.c @@ -3951,9 +3951,7 @@ simplify_subreg_regno (unsigned int xregno, machine_mode xmode, /* Give the backend a chance to disallow the mode change. */ if (GET_MODE_CLASS (xmode) != MODE_COMPLEX_INT && GET_MODE_CLASS (xmode) != MODE_COMPLEX_FLOAT - && !REG_CAN_CHANGE_MODE_P (xregno, xmode, ymode) - /* We can use mode change in LRA for some transformations. */ - && ! lra_in_progress) + && !REG_CAN_CHANGE_MODE_P (xregno, xmode, ymode)) return -1; /* We shouldn't simplify stack-related registers. */ |