mirror of
https://github.com/c64scene-ar/llvm-6502.git
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3d730f7453
crazy cases like:
struct f { int A, B, C, D, E, F; };
short test4() {
struct f A;
A.A = 1;
memset(&A.B, 2, 12);
return A.C;
}
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63596 91177308-0d34-0410-b5e6-96231b3b80d8
67 lines
2.5 KiB
LLVM
67 lines
2.5 KiB
LLVM
; PR1226
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; RUN: llvm-as < %s | opt -scalarrepl | llvm-dis | grep {ret i32 16843009}
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; RUN: llvm-as < %s | opt -scalarrepl | llvm-dis | not grep alloca
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; RUN: llvm-as < %s | opt -scalarrepl -instcombine | llvm-dis | grep {ret i16 514}
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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"
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target triple = "i686-apple-darwin8"
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%struct.bar = type { %struct.foo, i64, double }
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%struct.foo = type { i32, i32 }
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define i32 @test1(%struct.foo* %P) {
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entry:
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%L = alloca %struct.foo, align 8 ; <%struct.foo*> [#uses=2]
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%L2 = bitcast %struct.foo* %L to i8* ; <i8*> [#uses=1]
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%tmp13 = bitcast %struct.foo* %P to i8* ; <i8*> [#uses=1]
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call void @llvm.memcpy.i32( i8* %L2, i8* %tmp13, i32 8, i32 4 )
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%tmp4 = getelementptr %struct.foo* %L, i32 0, i32 0 ; <i32*> [#uses=1]
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%tmp5 = load i32* %tmp4 ; <i32> [#uses=1]
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ret i32 %tmp5
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}
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declare void @llvm.memcpy.i32(i8*, i8*, i32, i32)
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define i32 @test2() {
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entry:
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%L = alloca [4 x %struct.foo], align 16 ; <[4 x %struct.foo]*> [#uses=2]
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%L12 = bitcast [4 x %struct.foo]* %L to i8* ; <i8*> [#uses=1]
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call void @llvm.memset.i32( i8* %L12, i8 0, i32 32, i32 16 )
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%tmp4 = getelementptr [4 x %struct.foo]* %L, i32 0, i32 0, i32 0 ; <i32*> [#uses=1]
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%tmp5 = load i32* %tmp4 ; <i32> [#uses=1]
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ret i32 %tmp5
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}
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declare void @llvm.memset.i32(i8*, i8, i32, i32)
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define i32 @test3() {
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entry:
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%B = alloca %struct.bar, align 16 ; <%struct.bar*> [#uses=4]
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%B1 = bitcast %struct.bar* %B to i8* ; <i8*> [#uses=1]
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call void @llvm.memset.i32( i8* %B1, i8 1, i32 24, i32 16 )
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%tmp3 = getelementptr %struct.bar* %B, i32 0, i32 0, i32 0 ; <i32*> [#uses=1]
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store i32 1, i32* %tmp3
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%tmp4 = getelementptr %struct.bar* %B, i32 0, i32 2 ; <double*> [#uses=1]
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store double 1.000000e+01, double* %tmp4
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%tmp6 = getelementptr %struct.bar* %B, i32 0, i32 0, i32 1 ; <i32*> [#uses=1]
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%tmp7 = load i32* %tmp6 ; <i32> [#uses=1]
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ret i32 %tmp7
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}
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%struct.f = type { i32, i32, i32, i32, i32, i32 }
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define i16 @test4() nounwind {
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entry:
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%A = alloca %struct.f, align 8 ; <%struct.f*> [#uses=3]
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%0 = getelementptr %struct.f* %A, i32 0, i32 0 ; <i32*> [#uses=1]
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store i32 1, i32* %0, align 8
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%1 = getelementptr %struct.f* %A, i32 0, i32 1 ; <i32*> [#uses=1]
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%2 = bitcast i32* %1 to i8* ; <i8*> [#uses=1]
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call void @llvm.memset.i32(i8* %2, i8 2, i32 12, i32 4)
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%3 = getelementptr %struct.f* %A, i32 0, i32 2 ; <i32*> [#uses=1]
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%4 = load i32* %3, align 8 ; <i32> [#uses=1]
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%retval12 = trunc i32 %4 to i16 ; <i16> [#uses=1]
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ret i16 %retval12
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}
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