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| author | Richard Biener <rguenther@suse.de> | 2023-05-04 10:06:47 +0200 |
|---|---|---|
| committer | Richard Biener <rguenther@suse.de> | 2023-05-04 12:51:49 +0200 |
| commit | 82cfd93ae81a5687bf2a1b12d964c630e95517a7 (patch) | |
| tree | de5a70302501a62b51de20ff1e0aa6cc8c3a1a76 /gcc | |
| parent | 93c26deab98fc80b616a1c53c324a88f61036f53 (diff) | |
| download | gcc-82cfd93ae81a5687bf2a1b12d964c630e95517a7.zip gcc-82cfd93ae81a5687bf2a1b12d964c630e95517a7.tar.gz gcc-82cfd93ae81a5687bf2a1b12d964c630e95517a7.tar.bz2 | |
tree-optimization/109721 - emulated vectors
When fixing PR109672 I noticed we let SImode AND through when
target_support_p even though it isn't word_mode and I didn't want to
change that but had to catch the case where SImode PLUS is supported
but emulated vectors rely on it being word_mode. The following
makes sure to preserve the word_mode check when !target_support_p
to avoid excessive lowering later even for bit operations.
PR tree-optimization/109721
* tree-vect-stmts.cc (vectorizable_operation): Make sure
to test word_mode for all !target_support_p operations.
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/tree-vect-stmts.cc | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/gcc/tree-vect-stmts.cc b/gcc/tree-vect-stmts.cc index 3ad6a7d..cf5194e 100644 --- a/gcc/tree-vect-stmts.cc +++ b/gcc/tree-vect-stmts.cc @@ -6389,9 +6389,15 @@ vectorizable_operation (vec_info *vinfo, if (dump_enabled_p ()) dump_printf_loc (MSG_MISSED_OPTIMIZATION, vect_location, "op not supported by target.\n"); - /* Check only during analysis. */ - if (((code == PLUS_EXPR || code == MINUS_EXPR || code == NEGATE_EXPR) + /* When vec_mode is not a vector mode and we verified ops we + do not have to lower like AND are natively supported let + those through even when the mode isn't word_mode. For + ops we have to lower the lowering code assumes we are + dealing with word_mode. */ + if ((((code == PLUS_EXPR || code == MINUS_EXPR || code == NEGATE_EXPR) + || !target_support_p) && maybe_ne (GET_MODE_SIZE (vec_mode), UNITS_PER_WORD)) + /* Check only during analysis. */ || (!vec_stmt && !vect_can_vectorize_without_simd_p (code))) { if (dump_enabled_p ()) |