Fix unchecked uses of DominatorTree in MemoryDependenceAnalysis.

[oota-llvm.git] / test / Analysis / ScalarEvolution / fold.ll

diff --git a/test/Analysis/ScalarEvolution/fold.ll b/test/Analysis/ScalarEvolution/fold.ll
index 3c1b6ae0fec445f8a1c7c9ad6f08a708096ede72..57006dd9bb42c469cc6653a29bc0c37e9a105d88 100644 (file)
--- a/test/Analysis/ScalarEvolution/fold.ll
+++ b/test/Analysis/ScalarEvolution/fold.ll
@@ -1,4 +1,4 @@
-; RUN: opt -analyze -scalar-evolution %s -S | FileCheck %s
+; RUN: opt -analyze -scalar-evolution -S < %s | FileCheck %s
 
 define i16 @test1(i8 %x) {
   %A = zext i8 %x to i12
@@ -22,3 +22,41 @@ define i8 @test3(i8 %x) {
 ; CHECK: (3 * %x)
   ret i8 %C
 }
+
+define void @test4(i32 %x, i32 %y) {
+entry:
+  %Y = and i32 %y, 3
+  br label %loop
+loop:
+  %A = phi i32 [0, %entry], [%I, %loop]
+  %rand1 = icmp sgt i32 %A, %Y
+  %Z1 = select i1 %rand1, i32 %A, i32 %Y
+  %rand2 = icmp ugt i32 %A, %Z1
+  %Z2 = select i1 %rand2, i32 %A, i32 %Z1
+; CHECK: %Z2 =
+; CHECK-NEXT: -->  ([[EXPR:.*]]){{ +}}Exits: 20
+  %B = trunc i32 %Z2 to i16
+  %C = sext i16 %B to i30
+; CHECK: %C =
+; CHECK-NEXT: (trunc i32 ([[EXPR]]) to i30)
+  %D = sext i16 %B to i32
+; CHECK: %D =
+; CHECK-NEXT: ([[EXPR]])
+  %E = sext i16 %B to i34
+; CHECK: %E =
+; CHECK-NEXT: (zext i32 ([[EXPR]]) to i34)
+  %F = zext i16 %B to i30
+; CHECK: %F =
+; CHECK-NEXT: (trunc i32 ([[EXPR]]) to i30
+  %G = zext i16 %B to i32
+; CHECK: %G =
+; CHECK-NEXT: ([[EXPR]])
+  %H = zext i16 %B to i34
+; CHECK: %H =
+; CHECK-NEXT: (zext i32 ([[EXPR]]) to i34)
+  %I = add i32 %A, 1
+  %0 = icmp ne i32 %A, 20
+  br i1 %0, label %loop, label %exit
+exit:
+  ret void
+}