| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py |
| ; RUN: llc < %s -mtriple=x86_64-unknown-linux -mcpu=corei7-avx | FileCheck %s |
| |
| ; These tests check that an insert_subvector which replaces one of the halves |
| ; of a concat_vectors is optimized into a single vinsertf128. |
| |
| |
| declare <8 x float> @llvm.x86.avx.vinsertf128.ps.256(<8 x float>, <4 x float>, i8) |
| |
| define <8 x float> @lower_half(<4 x float> %v1, <4 x float> %v2, <4 x float> %v3) { |
| ; CHECK-LABEL: lower_half: |
| ; CHECK: # %bb.0: |
| ; CHECK-NEXT: # kill: def $xmm2 killed $xmm2 def $ymm2 |
| ; CHECK-NEXT: vinsertf128 $1, %xmm1, %ymm2, %ymm0 |
| ; CHECK-NEXT: retq |
| %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> |
| %2 = tail call <8 x float> @llvm.x86.avx.vinsertf128.ps.256(<8 x float> %1, <4 x float> %v3, i8 0) |
| ret <8 x float> %2 |
| |
| } |
| |
| define <8 x float> @upper_half(<4 x float> %v1, <4 x float> %v2, <4 x float> %v3) { |
| ; CHECK-LABEL: upper_half: |
| ; CHECK: # %bb.0: |
| ; CHECK-NEXT: # kill: def $xmm0 killed $xmm0 def $ymm0 |
| ; CHECK-NEXT: vinsertf128 $1, %xmm2, %ymm0, %ymm0 |
| ; CHECK-NEXT: retq |
| %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> |
| %2 = tail call <8 x float> @llvm.x86.avx.vinsertf128.ps.256(<8 x float> %1, <4 x float> %v3, i8 1) |
| ret <8 x float> %2 |
| |
| } |