peephole-cvt-sse.ll
1.37 KB
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=x86_64-pc-linux -mattr=+sse4.2 < %s | FileCheck %s --check-prefix=X86-64
; RUN: llc -mtriple=i386-pc-linux -mattr=+sse4.2 < %s | FileCheck %s --check-prefix=I386
; Check that unaligned loads merge with cvtdq2pd and cvtps2pd.
define <2 x double> @peephole_cvtps2pd(<4 x float>* %a0) {
; X86-64-LABEL: peephole_cvtps2pd:
; X86-64: # %bb.0:
; X86-64-NEXT: cvtps2pd (%rdi), %xmm0
; X86-64-NEXT: retq
;
; I386-LABEL: peephole_cvtps2pd:
; I386: # %bb.0:
; I386-NEXT: movl {{[0-9]+}}(%esp), %eax
; I386-NEXT: cvtps2pd (%eax), %xmm0
; I386-NEXT: retl
%1 = load <4 x float>, <4 x float>* %a0, align 1
%2 = shufflevector <4 x float> %1, <4 x float> undef, <2 x i32> <i32 0, i32 1>
%3 = fpext <2 x float> %2 to <2 x double>
ret <2 x double> %3
}
define <2 x double> @peephole_cvtdq2pd(<4 x i32>* %a0) {
; X86-64-LABEL: peephole_cvtdq2pd:
; X86-64: # %bb.0:
; X86-64-NEXT: cvtdq2pd (%rdi), %xmm0
; X86-64-NEXT: retq
;
; I386-LABEL: peephole_cvtdq2pd:
; I386: # %bb.0:
; I386-NEXT: movl {{[0-9]+}}(%esp), %eax
; I386-NEXT: cvtdq2pd (%eax), %xmm0
; I386-NEXT: retl
%1 = load <4 x i32>, <4 x i32>* %a0, align 1
%2 = shufflevector <4 x i32> %1, <4 x i32> undef, <2 x i32> <i32 0, i32 1>
%3 = sitofp <2 x i32> %2 to <2 x double>
ret <2 x double> %3
}