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 3; RUN: llc < %s -mtriple=x86_64-apple-darwin -mattr=+avx2 | FileCheck %s --check-prefix=AVX 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 9define <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 18define <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 29define <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 41define <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 51define <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 61define <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