; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py ; RUN: llc < %s -mtriple=i686-linux -mattr=+sse4.2 | FileCheck %s --check-prefix=X86 ; RUN: llc < %s -mtriple=x86_64-linux -mattr=+sse4.2 | FileCheck %s --check-prefix=X64 ; PR4891 ; Both loads should happen before either store. define void @short2_int_swap(<2 x i16>* nocapture %b, i32* nocapture %c) nounwind { ; X86-LABEL: short2_int_swap: ; X86: # %bb.0: # %entry ; X86-NEXT: pushl %esi ; X86-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx ; X86-NEXT: movl (%ecx), %edx ; X86-NEXT: movl (%eax), %esi ; X86-NEXT: movl %edx, (%eax) ; X86-NEXT: movl %esi, (%ecx) ; X86-NEXT: popl %esi ; X86-NEXT: retl ; ; X64-LABEL: short2_int_swap: ; X64: # %bb.0: # %entry ; X64-NEXT: movl (%rsi), %eax ; X64-NEXT: movl (%rdi), %ecx ; X64-NEXT: movl %eax, (%rdi) ; X64-NEXT: movl %ecx, (%rsi) ; X64-NEXT: retq entry: %0 = load <2 x i16>, <2 x i16>* %b, align 2 ; <<2 x i16>> [#uses=1] %1 = load i32, i32* %c, align 4 ; [#uses=1] %tmp1 = bitcast i32 %1 to <2 x i16> ; <<2 x i16>> [#uses=1] store <2 x i16> %tmp1, <2 x i16>* %b, align 2 %tmp5 = bitcast <2 x i16> %0 to <1 x i32> ; <<1 x i32>> [#uses=1] %tmp3 = extractelement <1 x i32> %tmp5, i32 0 ; [#uses=1] store i32 %tmp3, i32* %c, align 4 ret void }