union-pointer.ll   [plain text]

; PR892
; RUN: llvm-as < %s | opt -scalarrepl | llvm-dis | \
; RUN:   not grep alloca
; RUN: llvm-as < %s | opt -scalarrepl | llvm-dis | grep {ret i8}

target datalayout = "e-p:32:32"
target triple = "i686-apple-darwin8.7.2"
	%struct.Val = type { i32*, i32 }

define i8* @test(i16* %X) {
	%X_addr = alloca i16*		; <i16**> [#uses=2]
	store i16* %X, i16** %X_addr
	%X_addr.upgrd.1 = bitcast i16** %X_addr to i8**		; <i8**> [#uses=1]
	%tmp = load i8** %X_addr.upgrd.1		; <i8*> [#uses=1]
	ret i8* %tmp
}

define void @test2(i64 %Op.0) {
	%tmp = alloca %struct.Val, align 8		; <%struct.Val*> [#uses=3]
	%tmp1 = alloca %struct.Val, align 8		; <%struct.Val*> [#uses=3]
	%tmp.upgrd.2 = call i64 @_Z3foov( )		; <i64> [#uses=1]
	%tmp1.upgrd.3 = bitcast %struct.Val* %tmp1 to i64*		; <i64*> [#uses=1]
	store i64 %tmp.upgrd.2, i64* %tmp1.upgrd.3
	%tmp.upgrd.4 = getelementptr %struct.Val* %tmp, i32 0, i32 0		; <i32**> [#uses=1]
	%tmp2 = getelementptr %struct.Val* %tmp1, i32 0, i32 0		; <i32**> [#uses=1]
	%tmp.upgrd.5 = load i32** %tmp2		; <i32*> [#uses=1]
	store i32* %tmp.upgrd.5, i32** %tmp.upgrd.4
	%tmp3 = getelementptr %struct.Val* %tmp, i32 0, i32 1		; <i32*> [#uses=1]
	%tmp4 = getelementptr %struct.Val* %tmp1, i32 0, i32 1		; <i32*> [#uses=1]
	%tmp.upgrd.6 = load i32* %tmp4		; <i32> [#uses=1]
	store i32 %tmp.upgrd.6, i32* %tmp3
	%tmp7 = bitcast %struct.Val* %tmp to { i64 }*		; <{ i64 }*> [#uses=1]
	%tmp8 = getelementptr { i64 }* %tmp7, i32 0, i32 0		; <i64*> [#uses=1]
	%tmp9 = load i64* %tmp8		; <i64> [#uses=1]
	call void @_Z3bar3ValS_( i64 %Op.0, i64 %tmp9 )
	ret void
}

declare i64 @_Z3foov()

declare void @_Z3bar3ValS_(i64, i64)