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; RUN: llvm-as < %s | llc -march=x86 -regalloc=simple
define i32 @main() {
; %A = 0
%A = add i32 0, 0 ; <i32> [#uses=1]
; %B = 1
%B = add i32 0, 1 ; <i32> [#uses=2]
br label %bb1
bb1: ; preds = %0
; %X = 0*1 = 0
%X = mul i32 %A, %B ; <i32> [#uses=0]
; %r = 0
%R = sub i32 %B, 1 ; <i32> [#uses=1]
ret i32 %R
}
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