; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py ; RUN: llc -mtriple=i686-unknown-unknown -mattr=+sse4.2 < %s | FileCheck %s ; RUN: llc -mtriple=i686-unknown-unknown -mcpu=atom < %s | FileCheck -check-prefix=ATOM %s ; Scheduler causes produce a different instruction order ; bitcast a v4i16 to v2i32 define void @convert(<2 x i32>* %dst, <4 x i16>* %src) nounwind { ; CHECK-LABEL: convert: ; CHECK: # %bb.0: # %entry ; CHECK-NEXT: pushl %eax ; CHECK-NEXT: movl $0, (%esp) ; CHECK-NEXT: pcmpeqd %xmm0, %xmm0 ; CHECK-NEXT: cmpl $3, (%esp) ; CHECK-NEXT: jg .LBB0_3 ; CHECK-NEXT: .p2align 4, 0x90 ; CHECK-NEXT: .LBB0_2: # %forbody ; CHECK-NEXT: # =>This Inner Loop Header: Depth=1 ; CHECK-NEXT: movl (%esp), %eax ; CHECK-NEXT: movl {{[0-9]+}}(%esp), %ecx ; CHECK-NEXT: movl {{[0-9]+}}(%esp), %edx ; CHECK-NEXT: movq {{.*#+}} xmm1 = mem[0],zero ; CHECK-NEXT: psubw %xmm0, %xmm1 ; CHECK-NEXT: movq %xmm1, (%ecx,%eax,8) ; CHECK-NEXT: incl (%esp) ; CHECK-NEXT: cmpl $3, (%esp) ; CHECK-NEXT: jle .LBB0_2 ; CHECK-NEXT: .LBB0_3: # %afterfor ; CHECK-NEXT: popl %eax ; CHECK-NEXT: retl ; ; ATOM-LABEL: convert: ; ATOM: # %bb.0: # %entry ; ATOM-NEXT: pushl %eax ; ATOM-NEXT: pcmpeqd %xmm0, %xmm0 ; ATOM-NEXT: movl $0, (%esp) ; ATOM-NEXT: cmpl $3, (%esp) ; ATOM-NEXT: jg .LBB0_3 ; ATOM-NEXT: .p2align 4, 0x90 ; ATOM-NEXT: .LBB0_2: # %forbody ; ATOM-NEXT: # =>This Inner Loop Header: Depth=1 ; ATOM-NEXT: movl (%esp), %eax ; ATOM-NEXT: movl {{[0-9]+}}(%esp), %ecx ; ATOM-NEXT: movq {{.*#+}} xmm1 = mem[0],zero ; ATOM-NEXT: movl {{[0-9]+}}(%esp), %ecx ; ATOM-NEXT: psubw %xmm0, %xmm1 ; ATOM-NEXT: movq %xmm1, (%ecx,%eax,8) ; ATOM-NEXT: incl (%esp) ; ATOM-NEXT: cmpl $3, (%esp) ; ATOM-NEXT: jle .LBB0_2 ; ATOM-NEXT: .LBB0_3: # %afterfor ; ATOM-NEXT: popl %eax ; ATOM-NEXT: retl entry: %dst.addr = alloca <2 x i32>* %src.addr = alloca <4 x i16>* %i = alloca i32, align 4 store <2 x i32>* %dst, <2 x i32>** %dst.addr store <4 x i16>* %src, <4 x i16>** %src.addr store i32 0, i32* %i br label %forcond forcond: %tmp = load i32, i32* %i %cmp = icmp slt i32 %tmp, 4 br i1 %cmp, label %forbody, label %afterfor forbody: %tmp1 = load i32, i32* %i %tmp2 = load <2 x i32>*, <2 x i32>** %dst.addr %arrayidx = getelementptr <2 x i32>, <2 x i32>* %tmp2, i32 %tmp1 %tmp3 = load i32, i32* %i %tmp4 = load <4 x i16>*, <4 x i16>** %src.addr %arrayidx5 = getelementptr <4 x i16>, <4 x i16>* %tmp4, i32 %tmp3 %tmp6 = load <4 x i16>, <4 x i16>* %arrayidx5 %add = add <4 x i16> %tmp6, < i16 1, i16 1, i16 1, i16 1 > %conv = bitcast <4 x i16> %add to <2 x i32> store <2 x i32> %conv, <2 x i32>* %arrayidx br label %forinc forinc: %tmp7 = load i32, i32* %i %inc = add i32 %tmp7, 1 store i32 %inc, i32* %i br label %forcond afterfor: ret void }