File: 2008-09-19-RegAllocBug.ll

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llvm-toolchain-19 1%3A19.1.7-3
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; RUN: llc < %s -mtriple=i386-apple-darwin
; PR2808

@g_3 = external global i32		; <ptr> [#uses=1]

define i32 @func_4() nounwind {
entry:
	%0 = load i32, ptr @g_3, align 4		; <i32> [#uses=2]
	%1 = trunc i32 %0 to i8		; <i8> [#uses=1]
	%2 = sub i8 1, %1		; <i8> [#uses=1]
	%3 = sext i8 %2 to i32		; <i32> [#uses=1]
	%cmp2 = icmp ugt i32 ptrtoint (ptr @func_4 to i32), 3
	%ext = zext i1 %cmp2 to i8
	%c = icmp ne i8 %ext, 0
	%s = select i1 %c, i32 0, i32 ptrtoint (ptr @func_4 to i32)
	%ashr = ashr i32 %3, %s
	%urem = urem i32 %0, %ashr
	%cmp = icmp eq i32 %urem, 0
	br i1 %cmp, label %return, label %bb4

bb4:		; preds = %entry
	ret i32 undef

return:		; preds = %entry
	ret i32 undef
}