; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py ; RUN: llc %s -mtriple=x86_64-unknown-linux-gnu -mcpu=corei7 -o - | FileCheck %s target triple = "x86_64-unknown-linux-gnu" define void @merge_double(ptr noalias nocapture %st, ptr noalias nocapture readonly %ld) #0 { ; CHECK-LABEL: merge_double: ; CHECK: # %bb.0: ; CHECK-NEXT: movsd {{.*#+}} xmm0 = mem[0],zero ; CHECK-NEXT: movsd {{.*#+}} xmm1 = mem[0],zero ; CHECK-NEXT: movsd %xmm0, (%rdi) ; CHECK-NEXT: movsd %xmm1, 8(%rdi) ; CHECK-NEXT: movsd %xmm0, 16(%rdi) ; CHECK-NEXT: movsd %xmm1, 24(%rdi) ; CHECK-NEXT: retq %ld_idx1 = getelementptr inbounds double, ptr %ld, i64 1 %ld0 = load double, ptr %ld, align 8, !tbaa !2 %ld1 = load double, ptr %ld_idx1, align 8, !tbaa !2 %st_idx1 = getelementptr inbounds double, ptr %st, i64 1 %st_idx2 = getelementptr inbounds double, ptr %st, i64 2 %st_idx3 = getelementptr inbounds double, ptr %st, i64 3 store double %ld0, ptr %st, align 8, !tbaa !2 store double %ld1, ptr %st_idx1, align 8, !tbaa !2 store double %ld0, ptr %st_idx2, align 8, !tbaa !2 store double %ld1, ptr %st_idx3, align 8, !tbaa !2 ret void } define void @merge_loadstore_int(ptr noalias nocapture readonly %p, ptr noalias nocapture %q) local_unnamed_addr #0 { ; CHECK-LABEL: merge_loadstore_int: ; CHECK: # %bb.0: # %entry ; CHECK-NEXT: movq (%rdi), %rax ; CHECK-NEXT: movq 8(%rdi), %rcx ; CHECK-NEXT: movq %rax, (%rsi) ; CHECK-NEXT: movq %rcx, 8(%rsi) ; CHECK-NEXT: movq %rax, 16(%rsi) ; CHECK-NEXT: movq %rcx, 24(%rsi) ; CHECK-NEXT: retq entry: %0 = load i64, ptr %p, align 8, !tbaa !1 %arrayidx1 = getelementptr inbounds i64, ptr %p, i64 1 %1 = load i64, ptr %arrayidx1, align 8, !tbaa !1 store i64 %0, ptr %q, align 8, !tbaa !1 %arrayidx3 = getelementptr inbounds i64, ptr %q, i64 1 store i64 %1, ptr %arrayidx3, align 8, !tbaa !1 %arrayidx4 = getelementptr inbounds i64, ptr %q, i64 2 store i64 %0, ptr %arrayidx4, align 8, !tbaa !1 %arrayidx5 = getelementptr inbounds i64, ptr %q, i64 3 store i64 %1, ptr %arrayidx5, align 8, !tbaa !1 ret void } define i64 @merge_loadstore_int_with_extra_use(ptr noalias nocapture readonly %p, ptr noalias nocapture %q) local_unnamed_addr #0 { ; CHECK-LABEL: merge_loadstore_int_with_extra_use: ; CHECK: # %bb.0: # %entry ; CHECK-NEXT: movq (%rdi), %rax ; CHECK-NEXT: movq 8(%rdi), %rcx ; CHECK-NEXT: movq %rax, (%rsi) ; CHECK-NEXT: movq %rcx, 8(%rsi) ; CHECK-NEXT: movq %rax, 16(%rsi) ; CHECK-NEXT: movq %rcx, 24(%rsi) ; CHECK-NEXT: retq entry: %0 = load i64, ptr %p, align 8, !tbaa !1 %arrayidx1 = getelementptr inbounds i64, ptr %p, i64 1 %1 = load i64, ptr %arrayidx1, align 8, !tbaa !1 store i64 %0, ptr %q, align 8, !tbaa !1 %arrayidx3 = getelementptr inbounds i64, ptr %q, i64 1 store i64 %1, ptr %arrayidx3, align 8, !tbaa !1 %arrayidx4 = getelementptr inbounds i64, ptr %q, i64 2 store i64 %0, ptr %arrayidx4, align 8, !tbaa !1 %arrayidx5 = getelementptr inbounds i64, ptr %q, i64 3 store i64 %1, ptr %arrayidx5, align 8, !tbaa !1 ret i64 %0 } attributes #0 = { "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" } !0 = !{!"clang version 5.0.0 (trunk 296467) (llvm/trunk 296476)"} !1 = !{!2, !2, i64 0} !2 = !{!"double", !3, i64 0} !3 = !{!"omnipotent char", !4, i64 0} !4 = !{!"Simple C/C++ TBAA"}