[SimplifyCFG] Extend SimplifyResume to handle phi of trivial landing pad.

[oota-llvm.git] / test / Transforms / GVN / 2007-07-26-InterlockingLoops.ll

diff --git a/test/Transforms/GVN/2007-07-26-InterlockingLoops.ll b/test/Transforms/GVN/2007-07-26-InterlockingLoops.ll
index 5403a1bdb5e9dc1b1c74cc76e6cc5f782131bdd0..98e0024adf5b26c30cb8f29740d9714361a09580 100644 (file)
--- a/test/Transforms/GVN/2007-07-26-InterlockingLoops.ll
+++ b/test/Transforms/GVN/2007-07-26-InterlockingLoops.ll
@@ -1,30 +1,40 @@
-; RUN: llvm-as < %s | opt -gvn | llvm-dis | grep {tmp17625 = phi i32. }
-; RUN: llvm-as < %s | opt -gvn | llvm-dis | grep {tmp17631.* = phi i32. }
-
-@last = external global [65 x i32*]            ; <[65 x i32*]*> [#uses=1]
-
-define i32 @NextRootMove(i32 %wtm) {
-cond_next95:           ; preds = %cond_true85, %cond_true79, %cond_true73, %bb68
-       %tmp17618 = load i32** getelementptr ([65 x i32*]* @last, i32 0, i32 1), align 4                ; <i32*> [#uses=0]
+; RUN: opt < %s -basicaa -gvn -S | FileCheck %s
+
+@last = external global [65 x i32*]
+
+define i32 @NextRootMove(i32 %wtm, i32 %x, i32 %y, i32 %z) {
+entry:
+        %A = alloca i32*
+       %tmp17618 = load i32*, i32** getelementptr ([65 x i32*], [65 x i32*]* @last, i32 0, i32 1), align 4
+        store i32* %tmp17618, i32** %A
+; CHECK: entry:
+; CHECK-NEXT: alloca i32
+; CHECK-NEXT: %tmp17618 = load
+; CHECK-NOT: load
+; CHECK-NOT: phi
        br label %cond_true116
 
-cond_true116:          ; preds = %cond_true111
-       br i1 false, label %cond_true128, label %cond_true145
+cond_true116:
+   %cmp = icmp eq i32 %x, %y
+       br i1 %cmp, label %cond_true128, label %cond_true145
 
-cond_true128:          ; preds = %cond_true121
-       %tmp17625 = load i32** getelementptr ([65 x i32*]* @last, i32 0, i32 1), align 4                ; <i32*> [#uses=0]
-       br i1 false, label %bb98.backedge, label %return.loopexit
+cond_true128:
+       %tmp17625 = load i32*, i32** getelementptr ([65 x i32*], [65 x i32*]* @last, i32 0, i32 1), align 4
+        store i32* %tmp17625, i32** %A
+   %cmp1 = icmp eq i32 %x, %z
+       br i1 %cmp1 , label %bb98.backedge, label %return.loopexit
 
-bb98.backedge:         ; preds = %bb171, %cond_true145, %cond_true128
+bb98.backedge:
        br label %cond_true116
 
-cond_true145:          ; preds = %cond_false
-       %tmp17631 = load i32** getelementptr ([65 x i32*]* @last, i32 0, i32 1), align 4                ; <i32*> [#uses=0]
+cond_true145:
+       %tmp17631 = load i32*, i32** getelementptr ([65 x i32*], [65 x i32*]* @last, i32 0, i32 1), align 4
+        store i32* %tmp17631, i32** %A
        br i1 false, label %bb98.backedge, label %return.loopexit
 
-return.loopexit:               ; preds = %bb171, %cond_true145, %cond_true128
+return.loopexit:
        br label %return
 
-return:                ; preds = %return.loopexit, %cond_next95, %cond_true85
+return:
        ret i32 0
 }