1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
2; RUN: llc -verify-machineinstrs -mtriple=x86_64-unknown-unknown -mcpu=generic -mattr=+avx < %s | FileCheck %s
3
4; When commuting a VADDSDrr instruction, verify that the 'IsUndef' flag is
5; correctly propagated to the operands of the resulting instruction.
6; Test for PR23103;
7
8declare zeroext i1 @foo(<1 x double>)
9
10define <1 x double> @pr23103(<1 x double>* align 8 %Vp) {
11; CHECK-LABEL: pr23103:
12; CHECK:       # %bb.0: # %entry
13; CHECK-NEXT:    pushq %rax
14; CHECK-NEXT:    .cfi_def_cfa_offset 16
15; CHECK-NEXT:    vmovsd {{.*#+}} xmm0 = mem[0],zero
16; CHECK-NEXT:    callq foo
17; CHECK-NEXT:    vmovsd {{.*#+}} xmm0 = mem[0],zero
18; CHECK-NEXT:    popq %rax
19; CHECK-NEXT:    .cfi_def_cfa_offset 8
20; CHECK-NEXT:    retq
21entry:
22  %V = load <1 x double>, <1 x double>* %Vp, align 8
23  %call = call zeroext i1 @foo(<1 x double> %V)
24  %fadd = fadd <1 x double> %V, undef
25  ret <1 x double> %fadd
26}
27