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[X86] Use integer broadcast instructions for integer broadcast patterns.

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I'm not sure why we were using an FP instruction before and had to have a comment calling attention to it, but not justifying it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@293588 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Craig Topper 2017-01-31 02:09:43 +00:00
parent 35b092a75f
commit 1c8955ec1e
1 changed files with 5 additions and 10 deletions
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15
lib/Target/X86/X86InstrSSE.td
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@ -8334,18 +8334,13 @@ let Predicates = [HasAVX2, NoVLX_Or_NoBWI] in {
}
let Predicates = [HasAVX2, NoVLX] in {
def : Pat<(v4i32 (X86VBroadcast GR32:$src)),
(VBROADCASTSSrr (COPY_TO_REGCLASS GR32:$src, VR128))>;
(VPBROADCASTDrr (COPY_TO_REGCLASS GR32:$src, VR128))>;
def : Pat<(v8i32 (X86VBroadcast GR32:$src)),
(VBROADCASTSSYrr (COPY_TO_REGCLASS GR32:$src, VR128))>;
def : Pat<(v4i64 (X86VBroadcast GR64:$src)),
(VBROADCASTSDYrr (COPY_TO_REGCLASS GR64:$src, VR128))>;
// The patterns for VPBROADCASTD are not needed because they would match
// the exact same thing as VBROADCASTSS patterns.
(VPBROADCASTDYrr (COPY_TO_REGCLASS GR32:$src, VR128))>;
def : Pat<(v2i64 (X86VBroadcast GR64:$src)),
(VPBROADCASTQrr (COPY_TO_REGCLASS GR64:$src, VR128))>;
// The v4i64 pattern is not needed because VBROADCASTSDYrr already match.
(VPBROADCASTQrr (COPY_TO_REGCLASS GR64:$src, VR128))>;
def : Pat<(v4i64 (X86VBroadcast GR64:$src)),
(VPBROADCASTQYrr (COPY_TO_REGCLASS GR64:$src, VR128))>;
}
// AVX1 broadcast patterns