From 2c4f28255bd36d0fcf3eb434282a4a1384182716 Mon Sep 17 00:00:00 2001
From: Evan Cheng <evan.cheng@apple.com>
Date: Wed, 14 Oct 2009 01:45:10 +0000
Subject: [PATCH] Replace test with a simpler hand crafted one.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84069 91177308-0d34-0410-b5e6-96231b3b80d8
---
 test/Analysis/BasicAA/phi-aa.ll | 95 +++++++--------------------------
 1 file changed, 19 insertions(+), 76 deletions(-)

diff --git a/test/Analysis/BasicAA/phi-aa.ll b/test/Analysis/BasicAA/phi-aa.ll
index a3e89e963c0..02889600fb8 100644
--- a/test/Analysis/BasicAA/phi-aa.ll
+++ b/test/Analysis/BasicAA/phi-aa.ll
@@ -1,86 +1,29 @@
-; RUN: opt < %s -basicaa -licm -S | FileCheck %s
+; RUN: opt < %s -basicaa -aa-eval -print-all-alias-modref-info -disable-output |& grep {NoAlias:.*%P,.*@Z}
 ; rdar://7282591
 
-%struct.CFRuntimeBase = type { i32, [4 x i8] }
-%struct.XXXAffineTransform = type { float, float, float, float, float, float }
-%struct.XXXContext = type { %struct.CFRuntimeBase, i32, i32, i32, i8*, %struct.XXXContextDelegate*, void (%struct.XXXContext*)*, void (%struct.XXXContext*)*, %struct.XXXImage* (%struct.XXXContext*, %struct.XXXRect*, %struct.XXXImage*, i8*)*, i8*, %struct.__CFDictionary*, i32, %struct.XXXGState*, %struct.XXXGStack*, %struct.XXXRenderingState*, %struct.XXXAffineTransform, %struct.XXXPath*, %struct.__CFDictionary*, %struct.XXXPixelAccess* }
-%struct.XXXContextDelegate = type opaque
-%struct.XXXGStack = type opaque
-%struct.XXXGState = type opaque
-%struct.XXXImage = type opaque
-%struct.XXXPath = type opaque
-%struct.XXXPixelAccess = type opaque
-%struct.XXXPoint = type { float, float }
-%struct.XXXRect = type { %struct.XXXPoint, %struct.XXXPoint }
-%struct.XXXRenderingState = type opaque
-%struct.__CFDictionary = type opaque
+@X = common global i32 0
+@Y = common global i32 0
+@Z = common global i32 0
 
-define void @t(%struct.XXXContext* %context, i16* %glyphs, %struct.XXXPoint* %advances, i32 %count) nounwind optsize ssp {
-; CHECK: @t
-; CHECK: bb21.preheader:
-; CHECK: %tmp28 = getelementptr
-; CHECK: %tmp28.promoted = load
+define void @foo(i32 %cond) nounwind ssp {
 entry:
-  br i1 undef, label %bb1, label %bb
+  %"alloca point" = bitcast i32 0 to i32
+  %tmp = icmp ne i32 %cond, 0
+  br i1 %tmp, label %bb, label %bb1
 
-bb:                                               ; preds = %entry
-  br i1 undef, label %bb2, label %bb1
+bb:
+  br label %bb2
 
-bb1:                                              ; preds = %bb, %entry
-  ret void
+bb1:
+  br label %bb2
 
-bb2:                                              ; preds = %bb
-  br i1 undef, label %bb35, label %bb7
+bb2:
+  %P = phi i32* [ @X, %bb ], [ @Y, %bb1 ]
+  %tmp1 = load i32* @Z, align 4
+  store i32 123, i32* %P, align 4
+  %tmp2 = load i32* @Z, align 4
+  br label %return
 
-bb7:                                              ; preds = %bb2
-  br i1 undef, label %bb35, label %bb10
-
-bb10:                                             ; preds = %bb7
-  %tmp18 = alloca i8, i32 undef, align 1          ; <i8*> [#uses=1]
-  br i1 undef, label %bb35, label %bb15
-
-bb15:                                             ; preds = %bb10
-  br i1 undef, label %bb17, label %bb16
-
-bb16:                                             ; preds = %bb15
-  %tmp21 = bitcast i8* %tmp18 to %struct.XXXPoint* ; <%struct.XXXPoint*> [#uses=1]
-  br label %bb18
-
-bb17:                                             ; preds = %bb15
-  %tmp22 = malloc %struct.XXXPoint, i32 %count     ; <%struct.XXXPoint*> [#uses=1]
-  br label %bb18
-
-bb18:                                             ; preds = %bb17, %bb16
-  %positions.0 = phi %struct.XXXPoint* [ %tmp21, %bb16 ], [ %tmp22, %bb17 ] ; <%struct.XXXPoint*> [#uses=1]
-  br i1 undef, label %bb35, label %bb20
-
-bb20:                                             ; preds = %bb18
-  br i1 undef, label %bb21, label %bb25
-
-bb21:                                             ; preds = %bb21, %bb20
-  %tmp28 = getelementptr inbounds %struct.XXXPoint* %positions.0, i32 undef, i32 0 ; <float*> [#uses=1]
-  store float undef, float* %tmp28, align 4
-  %elt22 = getelementptr inbounds %struct.XXXPoint* %advances, i32 undef, i32 1 ; <float*> [#uses=1]
-  %val23 = load float* %elt22                     ; <float> [#uses=0]
-  br i1 undef, label %bb21, label %bb25
-
-bb25:                                             ; preds = %bb21, %bb20
-  switch i32 undef, label %bb26 [
-    i32 4, label %bb27
-    i32 5, label %bb27
-    i32 6, label %bb27
-    i32 7, label %bb28
-  ]
-
-bb26:                                             ; preds = %bb25
-  unreachable
-
-bb27:                                             ; preds = %bb25, %bb25, %bb25
-  unreachable
-
-bb28:                                             ; preds = %bb25
-  unreachable
-
-bb35:                                             ; preds = %bb18, %bb10, %bb7, %bb2
+return:
   ret void
 }