| ; RUN: llc < %s | FileCheck %s |
| |
| ; This test checks that we do not merge stores together which have |
| ; dependencies through their non-chain operands (e.g. one store is the |
| ; chain ancestor of a load whose value is used in as the data for the |
| ; other store). Merging in such cases creates a loop in the DAG. |
| |
| target datalayout = "e-m:e-i64:64-i128:128-n32:64-S128" |
| target triple = "aarch64--linux-android" |
| |
| %"class.std::__1::complex.0.20.56.60.64.72.76.88.92.112.140.248" = type { float, float } |
| |
| ; Function Attrs: noinline norecurse nounwind ssp uwtable |
| define void @fn(ptr %argA, ptr %argB, ptr %a) #0 align 2 { |
| %_p_vec_full = load <2 x i64>, ptr %argA, align 4, !alias.scope !9, !noalias !3 |
| %x = extractelement <2 x i64> %_p_vec_full, i32 1 |
| store i64 %x, ptr %a, align 8, !alias.scope !3, !noalias !9 |
| %_p_vec_full155 = load <2 x i64>, ptr %argB, align 4, !alias.scope !9, !noalias !3 |
| %y = extractelement <2 x i64> %_p_vec_full155, i32 0 |
| %scevgep41 = getelementptr i64, ptr %a, i64 -1 |
| store i64 %y, ptr %scevgep41, align 8, !alias.scope !3, !noalias !9 |
| ret void |
| } |
| |
| ; CHECK: ret |
| |
| attributes #0 = { noinline norecurse nounwind ssp uwtable "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="all" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "polly-optimized" "stack-protector-buffer-size"="8" "target-features"="+crc,+crypto,+neon" "unsafe-fp-math"="false" "use-soft-float"="false" } |
| |
| !llvm.ident = !{!0} |
| |
| !0 = !{!"Snapdragon LLVM ARM Compiler 3.8.0 (based on LLVM 3.8.0)"} |
| !1 = distinct !{!1, !2, !"polly.alias.scope.rhs"} |
| !2 = distinct !{!2, !"polly.alias.scope.domain"} |
| !3 = !{!4, !5, !6, !7, !8} |
| !4 = distinct !{!4, !2, !"polly.alias.scope.blockB"} |
| !5 = distinct !{!5, !2, !"polly.alias.scope.add28.lcssa.reg2mem"} |
| !6 = distinct !{!6, !2, !"polly.alias.scope.count.0.lcssa.reg2mem"} |
| !7 = distinct !{!7, !2, !"polly.alias.scope.mul"} |
| !8 = distinct !{!8, !2, !"polly.alias.scope.add28.us.lcssa.reg2mem"} |
| !9 = !{!1, !5, !6, !7, !8} |