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 3 4; If we have a truncating store, we need to truncate the elements when 5; when combining the constants. 6define void @pr64593(ptr %p) { 7; CHECK-LABEL: pr64593: 8; CHECK: # %bb.0: 9; CHECK-NEXT: vpxor %xmm0, %xmm0, %xmm0 10; CHECK-NEXT: vpmovqb %zmm0, (%rdi) 11; CHECK-NEXT: movq $0, 8(%rdi) 12; CHECK-NEXT: vzeroupper 13; CHECK-NEXT: retq 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 20 ret void 21} 22