1 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py 2 ; RUN: llc < %s -mtriple=x86_64-apple-darwin -mattr=+avx | FileCheck %s --check-prefix=AVX --check-prefix=AVX1 3 ; RUN: llc < %s -mtriple=x86_64-apple-darwin -mattr=+avx2 | FileCheck %s --check-prefix=AVX --check-prefix=AVX2 4 5 ; Prefer a blend instruction to a vinsert128 instruction because blends 6 ; are simpler (no lane changes) and therefore will have equal or better 7 ; performance. 8 9 define <8 x float> @castA(<4 x float> %m) nounwind uwtable readnone ssp { 10 ; AVX-LABEL: castA: 11 ; AVX: ## %bb.0: 12 ; AVX-NEXT: vmovaps %xmm0, %xmm0 13 ; AVX-NEXT: retq 14 %shuffle.i = shufflevector <4 x float> %m, <4 x float> zeroinitializer, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 4, i32 4, i32 4> 15 ret <8 x float> %shuffle.i 16 } 17 18 define <4 x double> @castB(<2 x double> %m) nounwind uwtable readnone ssp { 19 ; AVX-LABEL: castB: 20 ; AVX: ## %bb.0: 21 ; AVX-NEXT: vmovaps %xmm0, %xmm0 22 ; AVX-NEXT: retq 23 %shuffle.i = shufflevector <2 x double> %m, <2 x double> zeroinitializer, <4 x i32> <i32 0, i32 1, i32 2, i32 2> 24 ret <4 x double> %shuffle.i 25 } 26 27 ; AVX2 is needed for integer types. 28 29 define <4 x i64> @castC(<2 x i64> %m) nounwind uwtable readnone ssp { 30 ; AVX-LABEL: castC: 31 ; AVX: ## %bb.0: 32 ; AVX-NEXT: vmovaps %xmm0, %xmm0 33 ; AVX-NEXT: retq 34 %shuffle.i = shufflevector <2 x i64> %m, <2 x i64> zeroinitializer, <4 x i32> <i32 0, i32 1, i32 2, i32 2> 35 ret <4 x i64> %shuffle.i 36 } 37 38 ; The next three tests don't need any shuffling. There may or may not be a 39 ; vzeroupper before the return, so just check for the absence of shuffles. 40 41 define <4 x float> @castD(<8 x float> %m) nounwind uwtable readnone ssp { 42 ; AVX-LABEL: castD: 43 ; AVX: ## %bb.0: 44 ; AVX-NEXT: ## kill: def $xmm0 killed $xmm0 killed $ymm0 45 ; AVX-NEXT: vzeroupper 46 ; AVX-NEXT: retq 47 %shuffle.i = shufflevector <8 x float> %m, <8 x float> %m, <4 x i32> <i32 0, i32 1, i32 2, i32 3> 48 ret <4 x float> %shuffle.i 49 } 50 51 define <2 x i64> @castE(<4 x i64> %m) nounwind uwtable readnone ssp { 52 ; AVX-LABEL: castE: 53 ; AVX: ## %bb.0: 54 ; AVX-NEXT: ## kill: def $xmm0 killed $xmm0 killed $ymm0 55 ; AVX-NEXT: vzeroupper 56 ; AVX-NEXT: retq 57 %shuffle.i = shufflevector <4 x i64> %m, <4 x i64> %m, <2 x i32> <i32 0, i32 1> 58 ret <2 x i64> %shuffle.i 59 } 60 61 define <2 x double> @castF(<4 x double> %m) nounwind uwtable readnone ssp { 62 ; AVX-LABEL: castF: 63 ; AVX: ## %bb.0: 64 ; AVX-NEXT: ## kill: def $xmm0 killed $xmm0 killed $ymm0 65 ; AVX-NEXT: vzeroupper 66 ; AVX-NEXT: retq 67 %shuffle.i = shufflevector <4 x double> %m, <4 x double> %m, <2 x i32> <i32 0, i32 1> 68 ret <2 x double> %shuffle.i 69 } 70 71
