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[oota-llvm.git] / test / Analysis / BasicAA / global-size.ll

diff --git a/test/Analysis/BasicAA/global-size.ll b/test/Analysis/BasicAA/global-size.ll
index 810322e54d1f75c64805dbf811a019d44f498497..bacf3bc9c1b926e352f451edeaae6911af6f2c41 100644 (file)
--- a/test/Analysis/BasicAA/global-size.ll
+++ b/test/Analysis/BasicAA/global-size.ll
@@ -2,17 +2,51 @@
 ; the global.
 
 ; RUN: opt < %s -basicaa -gvn -S | FileCheck %s
-target datalayout = "E-p:64:64:64-a0:0:8-f32:32:32-f64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-v64:64:64-v128:128:128"
+target datalayout = "E-p:64:64:64-p1:16:16:16-a0:0:8-f32:32:32-f64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-v64:64:64-v128:128:128"
 
 @B = global i16 8
 
-; CHECK: @test1
+; CHECK-LABEL: @test1(
 define i16 @test1(i32* %P) {
-        %X = load i16* @B
+        %X = load i16, i16* @B
         store i32 7, i32* %P
-        %Y = load i16* @B
+        %Y = load i16, i16* @B
         %Z = sub i16 %Y, %X
         ret i16 %Z
 ; CHECK: ret i16 0
 }
 
+@B_as1 = addrspace(1) global i16 8
+
+define i16 @test1_as1(i32 addrspace(1)* %P) {
+; CHECK-LABEL: @test1_as1(
+; CHECK: ret i16 0
+  %X = load i16, i16 addrspace(1)* @B_as1
+  store i32 7, i32 addrspace(1)* %P
+  %Y = load i16, i16 addrspace(1)* @B_as1
+  %Z = sub i16 %Y, %X
+  ret i16 %Z
+}
+
+; Cannot know anything about the size of this global.
+; rdar://8813415
+@window = external global [0 x i8]
+
+; CHECK-LABEL: @test2(
+define i8 @test2(i32 %tmp79, i32 %w.2, i32 %indvar89) nounwind {
+  %tmp92 = add i32 %tmp79, %indvar89
+  %arrayidx412 = getelementptr [0 x i8], [0 x i8]* @window, i32 0, i32 %tmp92
+  %tmp93 = add i32 %w.2, %indvar89
+  %arrayidx416 = getelementptr [0 x i8], [0 x i8]* @window, i32 0, i32 %tmp93
+
+  %A = load i8, i8* %arrayidx412, align 1
+  store i8 4, i8* %arrayidx416, align 1
+
+  %B = load i8, i8* %arrayidx412, align 1
+  %C = sub i8 %A, %B
+  ret i8 %C
+
+; CHECK: %B = load i8
+; CHECK: ret i8 %C
+}
+