Make DataLayout Non-Optional in the Module

[oota-llvm.git] / test / Transforms / InstCombine / store.ll

diff --git a/test/Transforms/InstCombine/store.ll b/test/Transforms/InstCombine/store.ll
index d6f916dc8c7f209fcd3bf227a3d44280c6c8b24c..5dfbd7140901ff5209ce2bceb79d1fe7af7ca80d 100644 (file)
--- a/test/Transforms/InstCombine/store.ll
+++ b/test/Transforms/InstCombine/store.ll
@@ -1,17 +1,120 @@
-; RUN: opt < %s -instcombine -S | \
-; RUN:   grep -v {store.*,.*null} | not grep store
+; RUN: opt < %s -instcombine -S | FileCheck %s
 
 define void @test1(i32* %P) {
         store i32 undef, i32* %P
         store i32 123, i32* undef
         store i32 124, i32* null
         ret void
+; CHECK-LABEL: @test1(
+; CHECK-NEXT: store i32 123, i32* undef
+; CHECK-NEXT: store i32 undef, i32* null
+; CHECK-NEXT: ret void
 }
 
 define void @test2(i32* %P) {
-        %X = load i32* %P               ; <i32> [#uses=1]
+        %X = load i32, i32* %P               ; <i32> [#uses=1]
         %Y = add i32 %X, 0              ; <i32> [#uses=1]
         store i32 %Y, i32* %P
         ret void
+; CHECK-LABEL: @test2(
+; CHECK-NEXT: ret void
 }
 
+;; Simple sinking tests
+
+; "if then else"
+define i32 @test3(i1 %C) {
+       %A = alloca i32
+        br i1 %C, label %Cond, label %Cond2
+
+Cond:
+        store i32 -987654321, i32* %A
+        br label %Cont
+
+Cond2:
+       store i32 47, i32* %A
+       br label %Cont
+
+Cont:
+       %V = load i32, i32* %A
+       ret i32 %V
+; CHECK-LABEL: @test3(
+; CHECK-NOT: alloca
+; CHECK: Cont:
+; CHECK-NEXT:  %storemerge = phi i32 [ -987654321, %Cond ], [ 47, %Cond2 ]
+; CHECK-NEXT:  ret i32 %storemerge
+}
+
+; "if then"
+define i32 @test4(i1 %C) {
+       %A = alloca i32
+       store i32 47, i32* %A
+        br i1 %C, label %Cond, label %Cont
+
+Cond:
+        store i32 -987654321, i32* %A
+        br label %Cont
+
+Cont:
+       %V = load i32, i32* %A
+       ret i32 %V
+; CHECK-LABEL: @test4(
+; CHECK-NOT: alloca
+; CHECK: Cont:
+; CHECK-NEXT:  %storemerge = phi i32 [ -987654321, %Cond ], [ 47, %0 ]
+; CHECK-NEXT:  ret i32 %storemerge
+}
+
+; "if then"
+define void @test5(i1 %C, i32* %P) {
+       store i32 47, i32* %P, align 1
+        br i1 %C, label %Cond, label %Cont
+
+Cond:
+        store i32 -987654321, i32* %P, align 1
+        br label %Cont
+
+Cont:
+       ret void
+; CHECK-LABEL: @test5(
+; CHECK: Cont:
+; CHECK-NEXT:  %storemerge = phi i32
+; CHECK-NEXT:  store i32 %storemerge, i32* %P, align 1
+; CHECK-NEXT:  ret void
+}
+
+
+; PR14753 - merging two stores should preserve the TBAA tag.
+define void @test6(i32 %n, float* %a, i32* %gi) nounwind uwtable ssp {
+entry:
+  store i32 42, i32* %gi, align 4, !tbaa !0
+  br label %for.cond
+
+for.cond:                                         ; preds = %for.body, %entry
+  %storemerge = phi i32 [ 0, %entry ], [ %inc, %for.body ]
+  %0 = load i32, i32* %gi, align 4, !tbaa !0
+  %cmp = icmp slt i32 %0, %n
+  br i1 %cmp, label %for.body, label %for.end
+
+for.body:                                         ; preds = %for.cond
+  %idxprom = sext i32 %0 to i64
+  %arrayidx = getelementptr inbounds float, float* %a, i64 %idxprom
+  store float 0.000000e+00, float* %arrayidx, align 4, !tbaa !3
+  %1 = load i32, i32* %gi, align 4, !tbaa !0
+  %inc = add nsw i32 %1, 1
+  store i32 %inc, i32* %gi, align 4, !tbaa !0
+  br label %for.cond
+
+for.end:                                          ; preds = %for.cond
+  ret void
+; CHECK-LABEL: @test6(
+; CHECK: for.cond:
+; CHECK-NEXT: phi i32 [ 42
+; CHECK-NEXT: store i32 %storemerge, i32* %gi, align 4, !tbaa !0
+}
+
+!0 = !{!4, !4, i64 0}
+!1 = !{!"omnipotent char", !2}
+!2 = !{!"Simple C/C++ TBAA"}
+!3 = !{!"float", !1}
+!4 = !{!"int", !1}