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TheRock/compiler/amd-llvm/llvm/test/CodeGen/X86/movddup-load-fold.ll
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derek.holloway 7502bf64a4
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

25 lines
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LLVM

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=i686-- -mattr=+sse4.1 | FileCheck %s --check-prefix=SSE
; RUN: llc < %s -mtriple=i686-- -mattr=+avx | FileCheck %s --check-prefix=AVX
; RUN: llc < %s -mtriple=i686-- -mattr=+avx2 | FileCheck %s --check-prefix=AVX
; RUN: llc < %s -mtriple=i686-- -mattr=+avx512vl | FileCheck %s --check-prefix=AVX
; Test an isel pattern for a splatted VZLOAD.
define <4 x float> @movddup_load_fold(float %x, float %y) {
; SSE-LABEL: movddup_load_fold:
; SSE: # %bb.0:
; SSE-NEXT: movddup {{.*#+}} xmm0 = mem[0,0]
; SSE-NEXT: retl
;
; AVX-LABEL: movddup_load_fold:
; AVX: # %bb.0:
; AVX-NEXT: vmovddup {{.*#+}} xmm0 = mem[0,0]
; AVX-NEXT: retl
%i0 = insertelement <4 x float> zeroinitializer, float %x, i32 0
%i1 = insertelement <4 x float> %i0, float %y, i32 1
%dup = shufflevector <4 x float> %i1, <4 x float> undef, <4 x i32> <i32 0, i32 1, i32 0, i32 1>
ret <4 x float> %dup
}