1 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 2
2 ; RUN: llc -mtriple=x86_64-unknown-unknown -mcpu=skx < %s | FileCheck %s
4 ; If we have a truncating store, we need to truncate the elements when
5 ; when combining the constants.
6 define void @pr64593(ptr %p) {
7 ; CHECK-LABEL: pr64593:
9 ; CHECK-NEXT: vpxor %xmm0, %xmm0, %xmm0
10 ; CHECK-NEXT: vpmovqb %zmm0, (%rdi)
11 ; CHECK-NEXT: movq $0, 8(%rdi)
12 ; CHECK-NEXT: vzeroupper
14 %v = insertelement <8 x i64> zeroinitializer, i64 0, i32 1
15 %trunc = trunc <8 x i64> %v to <8 x i8>
16 %p1 = getelementptr i8, ptr %p, i32 0
17 %p2 = getelementptr i8, ptr %p, i32 8
18 store <8 x i8> %trunc, ptr %p1
19 store <8 x i8> zeroinitializer, ptr %p2