1 ; RUN: llc < %s -mtriple=x86_64-unknown-linux -mcpu=corei7-avx | FileCheck %s 2 3 ; These tests check that an insert_subvector which replaces one of the halves 4 ; of a concat_vectors is optimized into a single vinsertf128. 5 6 7 declare <8 x float> @llvm.x86.avx.vinsertf128.ps.256(<8 x float>, <4 x float>, i8) 8 9 define <8 x float> @lower_half(<4 x float> %v1, <4 x float> %v2, <4 x float> %v3) { 10 %1 = shufflevector <4 x float> %v1, <4 x float> %v2, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7> 11 %2 = tail call <8 x float> @llvm.x86.avx.vinsertf128.ps.256(<8 x float> %1, <4 x float> %v3, i8 0) 12 ret <8 x float> %2 13 14 ; CHECK-LABEL: lower_half 15 ; CHECK-NOT: vinsertf128 16 ; CHECK: vinsertf128 $1, %xmm1, %ymm2, %ymm0 17 ; CHECK-NEXT: ret 18 } 19 20 define <8 x float> @upper_half(<4 x float> %v1, <4 x float> %v2, <4 x float> %v3) { 21 %1 = shufflevector <4 x float> %v1, <4 x float> %v2, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7> 22 %2 = tail call <8 x float> @llvm.x86.avx.vinsertf128.ps.256(<8 x float> %1, <4 x float> %v3, i8 1) 23 ret <8 x float> %2 24 25 ; CHECK-LABEL: upper_half 26 ; CHECK-NOT: vinsertf128 27 ; CHECK: vinsertf128 $1, %xmm2, %ymm0, %ymm0 28 ; CHECK-NEXT: ret 29 } 30
