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[X86] Give scalar VRNDSCALE instructions priority in AVX512 mode.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227039 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Craig Topper 2015-01-25 08:49:22 +00:00
parent e3792c042d
commit ff763041d2
2 changed files with 26 additions and 20 deletions
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42
lib/Target/X86/X86InstrAVX512.td
View File

@ -4619,26 +4619,28 @@ defm VRNDSCALESS : avx512_rndscale_scalar<0x0A, "vrndscaless", ssmem, FR32X,
defm VRNDSCALESD : avx512_rndscale_scalar<0x0B, "vrndscalesd", sdmem, FR64X,
SSEPackedDouble>, EVEX_CD8<64, CD8VT1>;
def : Pat<(ffloor FR32X:$src),
(VRNDSCALESSr (f32 (IMPLICIT_DEF)), FR32X:$src, (i32 0x1))>;
def : Pat<(f64 (ffloor FR64X:$src)),
(VRNDSCALESDr (f64 (IMPLICIT_DEF)), FR64X:$src, (i32 0x1))>;
def : Pat<(f32 (fnearbyint FR32X:$src)),
(VRNDSCALESSr (f32 (IMPLICIT_DEF)), FR32X:$src, (i32 0xC))>;
def : Pat<(f64 (fnearbyint FR64X:$src)),
(VRNDSCALESDr (f64 (IMPLICIT_DEF)), FR64X:$src, (i32 0xC))>;
def : Pat<(f32 (fceil FR32X:$src)),
(VRNDSCALESSr (f32 (IMPLICIT_DEF)), FR32X:$src, (i32 0x2))>;
def : Pat<(f64 (fceil FR64X:$src)),
(VRNDSCALESDr (f64 (IMPLICIT_DEF)), FR64X:$src, (i32 0x2))>;
def : Pat<(f32 (frint FR32X:$src)),
(VRNDSCALESSr (f32 (IMPLICIT_DEF)), FR32X:$src, (i32 0x4))>;
def : Pat<(f64 (frint FR64X:$src)),
(VRNDSCALESDr (f64 (IMPLICIT_DEF)), FR64X:$src, (i32 0x4))>;
def : Pat<(f32 (ftrunc FR32X:$src)),
(VRNDSCALESSr (f32 (IMPLICIT_DEF)), FR32X:$src, (i32 0x3))>;
def : Pat<(f64 (ftrunc FR64X:$src)),
(VRNDSCALESDr (f64 (IMPLICIT_DEF)), FR64X:$src, (i32 0x3))>;
let Predicates = [HasAVX512] in {
def : Pat<(ffloor FR32X:$src),
(VRNDSCALESSr (f32 (IMPLICIT_DEF)), FR32X:$src, (i32 0x1))>;
def : Pat<(f64 (ffloor FR64X:$src)),
(VRNDSCALESDr (f64 (IMPLICIT_DEF)), FR64X:$src, (i32 0x1))>;
def : Pat<(f32 (fnearbyint FR32X:$src)),
(VRNDSCALESSr (f32 (IMPLICIT_DEF)), FR32X:$src, (i32 0xC))>;
def : Pat<(f64 (fnearbyint FR64X:$src)),
(VRNDSCALESDr (f64 (IMPLICIT_DEF)), FR64X:$src, (i32 0xC))>;
def : Pat<(f32 (fceil FR32X:$src)),
(VRNDSCALESSr (f32 (IMPLICIT_DEF)), FR32X:$src, (i32 0x2))>;
def : Pat<(f64 (fceil FR64X:$src)),
(VRNDSCALESDr (f64 (IMPLICIT_DEF)), FR64X:$src, (i32 0x2))>;
def : Pat<(f32 (frint FR32X:$src)),
(VRNDSCALESSr (f32 (IMPLICIT_DEF)), FR32X:$src, (i32 0x4))>;
def : Pat<(f64 (frint FR64X:$src)),
(VRNDSCALESDr (f64 (IMPLICIT_DEF)), FR64X:$src, (i32 0x4))>;
def : Pat<(f32 (ftrunc FR32X:$src)),
(VRNDSCALESSr (f32 (IMPLICIT_DEF)), FR32X:$src, (i32 0x3))>;
def : Pat<(f64 (ftrunc FR64X:$src)),
(VRNDSCALESDr (f64 (IMPLICIT_DEF)), FR64X:$src, (i32 0x3))>;
}
def : Pat<(v16f32 (ffloor VR512:$src)),
(VRNDSCALEPSZr VR512:$src, (i32 0x1))>;

4
lib/Target/X86/X86InstrSSE.td
View File

@ -6734,7 +6734,9 @@ let Predicates = [HasAVX] in {
defm VROUND : sse41_fp_binop_rm<0x0A, 0x0B, "vround",
int_x86_sse41_round_ss,
int_x86_sse41_round_sd, 0>, VEX_4V, VEX_LIG;
}
let Predicates = [UseAVX] in {
def : Pat<(ffloor FR32:$src),
(VROUNDSSr (f32 (IMPLICIT_DEF)), FR32:$src, (i32 0x1))>;
def : Pat<(f64 (ffloor FR64:$src)),
@ -6755,7 +6757,9 @@ let Predicates = [HasAVX] in {
(VROUNDSSr (f32 (IMPLICIT_DEF)), FR32:$src, (i32 0x3))>;
def : Pat<(f64 (ftrunc FR64:$src)),
(VROUNDSDr (f64 (IMPLICIT_DEF)), FR64:$src, (i32 0x3))>;
}
let Predicates = [HasAVX] in {
def : Pat<(v4f32 (ffloor VR128:$src)),
(VROUNDPSr VR128:$src, (i32 0x1))>;
def : Pat<(v4f32 (fnearbyint VR128:$src)),