1 files changed, 76 insertions, 0 deletions
diff --git a/test/Transforms/Inline/noalias.ll b/test/Transforms/Inline/noalias.ll
new file mode 100644
index 000000000000..674da1e2efbb
--- /dev/null
+++ b/test/Transforms/Inline/noalias.ll
@@ -0,0 +1,76 @@
+; RUN: opt -inline -enable-noalias-to-md-conversion -S < %s | FileCheck %s
+target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
+target triple = "x86_64-unknown-linux-gnu"
+
+define void @hello(float* noalias nocapture %a, float* nocapture readonly %c) #0 {
+entry:
+  %0 = load float* %c, align 4
+  %arrayidx = getelementptr inbounds float* %a, i64 5
+  store float %0, float* %arrayidx, align 4
+  ret void
+}
+
+define void @foo(float* nocapture %a, float* nocapture readonly %c) #0 {
+entry:
+  tail call void @hello(float* %a, float* %c)
+  %0 = load float* %c, align 4
+  %arrayidx = getelementptr inbounds float* %a, i64 7
+  store float %0, float* %arrayidx, align 4
+  ret void
+}
+
+; CHECK: define void @foo(float* nocapture %a, float* nocapture readonly %c) #0 {
+; CHECK: entry:
+; CHECK:   %0 = load float* %c, align 4, !noalias !0
+; CHECK:   %arrayidx.i = getelementptr inbounds float* %a, i64 5
+; CHECK:   store float %0, float* %arrayidx.i, align 4, !alias.scope !0
+; CHECK:   %1 = load float* %c, align 4
+; CHECK:   %arrayidx = getelementptr inbounds float* %a, i64 7
+; CHECK:   store float %1, float* %arrayidx, align 4
+; CHECK:   ret void
+; CHECK: }
+
+define void @hello2(float* noalias nocapture %a, float* noalias nocapture %b, float* nocapture readonly %c) #0 {
+entry:
+  %0 = load float* %c, align 4
+  %arrayidx = getelementptr inbounds float* %a, i64 5
+  store float %0, float* %arrayidx, align 4
+  %arrayidx1 = getelementptr inbounds float* %b, i64 8
+  store float %0, float* %arrayidx1, align 4
+  ret void
+}
+
+define void @foo2(float* nocapture %a, float* nocapture %b, float* nocapture readonly %c) #0 {
+entry:
+  tail call void @hello2(float* %a, float* %b, float* %c)
+  %0 = load float* %c, align 4
+  %arrayidx = getelementptr inbounds float* %a, i64 7
+  store float %0, float* %arrayidx, align 4
+  ret void
+}
+
+; CHECK: define void @foo2(float* nocapture %a, float* nocapture %b, float* nocapture readonly %c) #0 {
+; CHECK: entry:
+; CHECK:   %0 = load float* %c, align 4, !noalias !3
+; CHECK:   %arrayidx.i = getelementptr inbounds float* %a, i64 5
+; CHECK:   store float %0, float* %arrayidx.i, align 4, !alias.scope !7, !noalias !8
+; CHECK:   %arrayidx1.i = getelementptr inbounds float* %b, i64 8
+; CHECK:   store float %0, float* %arrayidx1.i, align 4, !alias.scope !8, !noalias !7
+; CHECK:   %1 = load float* %c, align 4
+; CHECK:   %arrayidx = getelementptr inbounds float* %a, i64 7
+; CHECK:   store float %1, float* %arrayidx, align 4
+; CHECK:   ret void
+; CHECK: }
+
+attributes #0 = { nounwind uwtable }
+
+; CHECK: !0 = !{!1}
+; CHECK: !1 = distinct !{!1, !2, !"hello: %a"}
+; CHECK: !2 = distinct !{!2, !"hello"}
+; CHECK: !3 = !{!4, !6}
+; CHECK: !4 = distinct !{!4, !5, !"hello2: %a"}
+; CHECK: !5 = distinct !{!5, !"hello2"}
+; CHECK: !6 = distinct !{!6, !5, !"hello2: %b"}
+; CHECK: !7 = !{!4}
+; CHECK: !8 = !{!6}
+