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| author | Kewen Lin <linkw@linux.ibm.com> | 2024-11-21 07:41:33 +0000 |
|---|---|---|
| committer | Kewen Lin <linkw@gcc.gnu.org> | 2024-11-21 07:41:33 +0000 |
| commit | ca96c1d1bc04b498e401571e99296e526db5db58 (patch) | |
| tree | c2e6832e2eed809c45fdc74fbd0610eb4885deea | |
| parent | 2441dc2495d257c4894a4d0c8d36cfbdc851579c (diff) | |
| download | gcc-ca96c1d1bc04b498e401571e99296e526db5db58.zip gcc-ca96c1d1bc04b498e401571e99296e526db5db58.tar.gz gcc-ca96c1d1bc04b498e401571e99296e526db5db58.tar.bz2 | |
rs6000: Remove entry for V1TImode from VI_unit
When making a patch to adjust VECTOR_P8_VECTOR rs6000_vector
enum, I noticed that V1TImode's mode attribute in VI_unit
VECTOR_UNIT_ALTIVEC_P (V1TImode) is never true, since
VECTOR_UNIT_ALTIVEC_P checks if vector_unit[V1TImode] is
equal to VECTOR_ALTIVEC, but vector_unit[V1TImode] can only
be VECTOR_NONE or VECTOR_P8_VECTOR, there is no chance to be
VECTOR_ALTIVEC:
rs6000_vector_unit[V1TImode]
= (TARGET_P8_VECTOR) ? VECTOR_P8_VECTOR : VECTOR_NONE;
By checking all uses of VI_unit, the used mode iterator is
one of VI2, VI, VP_small and VP, none of them has V1TImode,
so the entry for V1TImode is useless. I guessed it was
designed to have one mode attribute to cover all integer
vector modes, but later we separated V1TI handlings to its
own patterns (those guarded with TARGET_VADDUQM). Anyway,
this patch is to remove this useless and confusing entry.
gcc/ChangeLog:
* config/rs6000/altivec.md (mode attr for V1TI in VI_unit): Remove.
| -rw-r--r-- | gcc/config/rs6000/altivec.md | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/gcc/config/rs6000/altivec.md b/gcc/config/rs6000/altivec.md index 00dad4b..687c3c0 100644 --- a/gcc/config/rs6000/altivec.md +++ b/gcc/config/rs6000/altivec.md @@ -227,8 +227,7 @@ (define_mode_attr VI_unit [(V16QI "VECTOR_UNIT_ALTIVEC_P (V16QImode)") (V8HI "VECTOR_UNIT_ALTIVEC_P (V8HImode)") (V4SI "VECTOR_UNIT_ALTIVEC_P (V4SImode)") - (V2DI "VECTOR_UNIT_P8_VECTOR_P (V2DImode)") - (V1TI "VECTOR_UNIT_ALTIVEC_P (V1TImode)")]) + (V2DI "VECTOR_UNIT_P8_VECTOR_P (V2DImode)")]) ;; Vector pack/unpack (define_mode_iterator VP [V2DI V4SI V8HI]) |