testcase for SROA with memset etc

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35147 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Transforms/ScalarRepl/memset-aggregate.ll b/test/Transforms/ScalarRepl/memset-aggregate.ll
new file mode 100644 (file)
index 0000000..3c5b662
--- /dev/null
+++ b/test/Transforms/ScalarRepl/memset-aggregate.ll
@@ -0,0 +1,48 @@
+; RUN: llvm-as < %s | opt -scalarrepl | llvm-dis | grep 'ret i32 16843009'
+; RUN: llvm-as < %s | opt -scalarrepl | llvm-dis | not grep alloca
+
+target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64"
+target triple = "i686-apple-darwin8"
+       %struct.bar = type { %struct.foo, i64, double }
+       %struct.foo = type { i32, i32 }
+
+implementation   ; Functions:
+
+define i32 @test1(%struct.foo* %P) {
+entry:
+       %L = alloca %struct.foo, align 8                ; <%struct.foo*> [#uses=2]
+       %L2 = bitcast %struct.foo* %L to i8*            ; <i8*> [#uses=1]
+       %tmp13 = bitcast %struct.foo* %P to i8*         ; <i8*> [#uses=1]
+       call void @llvm.memcpy.i32( i8* %L2, i8* %tmp13, i32 8, i32 4 )
+       %tmp4 = getelementptr %struct.foo* %L, i32 0, i32 0             ; <i32*> [#uses=1]
+       %tmp5 = load i32* %tmp4         ; <i32> [#uses=1]
+       ret i32 %tmp5
+}
+
+declare void @llvm.memcpy.i32(i8*, i8*, i32, i32)
+
+define i32 @test2() {
+entry:
+       %L = alloca [4 x %struct.foo], align 16         ; <[4 x %struct.foo]*> [#uses=2]
+       %L12 = bitcast [4 x %struct.foo]* %L to i8*             ; <i8*> [#uses=1]
+       call void @llvm.memset.i32( i8* %L12, i8 0, i32 32, i32 16 )
+       %tmp4 = getelementptr [4 x %struct.foo]* %L, i32 0, i32 0, i32 0                ; <i32*> [#uses=1]
+       %tmp5 = load i32* %tmp4         ; <i32> [#uses=1]
+       ret i32 %tmp5
+}
+
+declare void @llvm.memset.i32(i8*, i8, i32, i32)
+
+define i32 @test3() {
+entry:
+       %B = alloca %struct.bar, align 16               ; <%struct.bar*> [#uses=4]
+       %B1 = bitcast %struct.bar* %B to i8*            ; <i8*> [#uses=1]
+       call void @llvm.memset.i32( i8* %B1, i8 1, i32 24, i32 16 )
+       %tmp3 = getelementptr %struct.bar* %B, i32 0, i32 0, i32 0              ; <i32*> [#uses=1]
+       store i32 1, i32* %tmp3
+       %tmp4 = getelementptr %struct.bar* %B, i32 0, i32 2             ; <double*> [#uses=1]
+       store double 1.000000e+01, double* %tmp4
+       %tmp6 = getelementptr %struct.bar* %B, i32 0, i32 0, i32 1              ; <i32*> [#uses=1]
+       %tmp7 = load i32* %tmp6         ; <i32> [#uses=1]
+       ret i32 %tmp7
+}