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| author | Bernd Schmidt <bernds@redhat.com> | 2017-03-25 01:12:04 +0000 |
|---|---|---|
| committer | Bernd Schmidt <bernds@gcc.gnu.org> | 2017-03-25 01:12:04 +0000 |
| commit | 5da906ca43feb6e83cd3cdb11d59d76548005cad (patch) | |
| tree | e9f003ff186d9814acb1738ac09b863f2d1584da /gcc/lra-assigns.c | |
| parent | 199855f60367c12d831416ecd4b367b5d0222f67 (diff) | |
| download | gcc-5da906ca43feb6e83cd3cdb11d59d76548005cad.zip gcc-5da906ca43feb6e83cd3cdb11d59d76548005cad.tar.gz gcc-5da906ca43feb6e83cd3cdb11d59d76548005cad.tar.bz2 | |
re PR target/80160 (operand has impossible constraints)
PR rtl-optimization/80160
PR rtl-optimization/80159
* lra-assigns.c (must_not_spill_p): Tighten new test to also take
reg_alternate_class into account.
* gcc.target/i386/pr80160.c: New test.
From-SVN: r246473
Diffstat (limited to 'gcc/lra-assigns.c')
| -rw-r--r-- | gcc/lra-assigns.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/gcc/lra-assigns.c b/gcc/lra-assigns.c index 75bb630..e4cc43a 100644 --- a/gcc/lra-assigns.c +++ b/gcc/lra-assigns.c @@ -908,7 +908,8 @@ must_not_spill_p (unsigned spill_regno) does not solve the general case where existing reloads fully cover a limited register class. */ if (!bitmap_bit_p (&non_reload_pseudos, spill_regno) - && reg_class_size [reg_preferred_class (spill_regno)] == 1) + && reg_class_size [reg_preferred_class (spill_regno)] == 1 + && reg_alternate_class (spill_regno) == NO_REGS) return true; return false; } |