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| author | Jakub Jelinek <jakub@redhat.com> | 2022-02-25 18:58:48 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@redhat.com> | 2022-02-25 18:58:48 +0100 |
| commit | 3885a122f817a1b6dca4a84ba9e020d5ab2060af (patch) | |
| tree | b9385e84f6c96ca5434f9d7759a896652f93e0a6 /gcc/config | |
| parent | cc187fbca79ee9d107e5e3ea24dd649ce26aba74 (diff) | |
| download | gcc-3885a122f817a1b6dca4a84ba9e020d5ab2060af.zip gcc-3885a122f817a1b6dca4a84ba9e020d5ab2060af.tar.gz gcc-3885a122f817a1b6dca4a84ba9e020d5ab2060af.tar.bz2 | |
rs6000: Use rs6000_emit_move in movmisalign<mode> expander [PR104681]
The following testcase ICEs, because for some strange reason it decides to use
movmisaligntf during expansion where the destination is MEM and source is
CONST_DOUBLE. For normal mov<mode> expanders the rs6000 backend uses
rs6000_emit_move to ensure that if one operand is a MEM, the other is a REG
and a few other things, but for movmisalign<mode> nothing enforced this.
The middle-end documents that movmisalign<mode> shouldn't fail, so we can't
force that through predicates or condition on the expander.
2022-02-25 Jakub Jelinek <jakub@redhat.com>
PR target/104681
* config/rs6000/vector.md (movmisalign<mode>): Use rs6000_emit_move.
* g++.dg/opt/pr104681.C: New test.
Diffstat (limited to 'gcc/config')
| -rw-r--r-- | gcc/config/rs6000/vector.md | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/gcc/config/rs6000/vector.md b/gcc/config/rs6000/vector.md index b87a742..4d0797c 100644 --- a/gcc/config/rs6000/vector.md +++ b/gcc/config/rs6000/vector.md @@ -1519,7 +1519,10 @@ [(set (match_operand:VEC_N 0 "nonimmediate_operand") (match_operand:VEC_N 1 "any_operand"))] "VECTOR_MEM_VSX_P (<MODE>mode) && TARGET_ALLOW_MOVMISALIGN" - "") +{ + rs6000_emit_move (operands[0], operands[1], <MODE>mode); + DONE; +}) ;; Vector shift right in bits. Currently supported ony for shift ;; amounts that can be expressed as byte shifts (divisible by 8). |