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| author | H.J. Lu <hjl.tools@gmail.com> | 2015-12-19 06:51:44 -0800 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2016-02-12 05:08:29 -0800 |
| commit | ba5e18d8d98a3beb3d51da03f4721f5576fcb997 (patch) | |
| tree | 683731b55aaa500b3a601a274cd7f6bf37da0dfd /gcc/config/i386/predicates.md | |
| parent | cea7085941f85780f1b32c3a218f2009f2f44ab2 (diff) | |
| download | gcc-hjl/pr68991/gcc-5-branch.tar.gz | |
Add vector_memory_operand and "Bm" constrainthjl/pr68991/gcc-5-branch
SSE vector arithmetic and logic instructions only accept aligned memory
operand. This patch adds vector_memory_operand and "Bm" constraint for
aligned SSE memory operand. They are applied to SSE plusminus and
any_logic patterns.
gcc/
PR target/68991
* config/i386/constraints.md (Bm): New constraint.
* config/i386/predicates.md (vector_memory_operand): New
predicate.
* config/i386/sse.md: Replace xm with xBm in plusminus and
any_logic patterns.
gcc/testsuite/
PR target/68991
* g++.dg/pr68991-1.C: New test.
* g++.dg/pr68991-2.C: Likewise.
Diffstat (limited to 'gcc/config/i386/predicates.md')
| -rw-r--r-- | gcc/config/i386/predicates.md | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/gcc/config/i386/predicates.md b/gcc/config/i386/predicates.md index f0c999cb182..b47aca0df64 100644 --- a/gcc/config/i386/predicates.md +++ b/gcc/config/i386/predicates.md @@ -937,6 +937,13 @@ return false; }) +; Return true when OP is operand acceptable for vector memory operand. +; Only AVX can have misaligned memory operand. +(define_predicate "vector_memory_operand" + (and (match_operand 0 "memory_operand") + (ior (match_test "TARGET_AVX") + (match_test "MEM_ALIGN (op) >= GET_MODE_ALIGNMENT (mode)")))) + ; Return true when OP is operand acceptable for standard SSE move. (define_predicate "vector_move_operand" (ior (match_operand 0 "nonimmediate_operand") |