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testcase for SROA with memset etc 

llvm-svn: 35147
This commit is contained in:
Chris Lattner 2007-03-19 00:09:00 +00:00
parent db204ecfbc
commit 2c0f36bc39
1 changed files with 48 additions and 0 deletions
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48
llvm/test/Transforms/ScalarRepl/memset-aggregate.ll Normal file
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; 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
}