File: 2008-12-02-dagcombine-2.ll

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llvm-toolchain-14 1%3A14.0.6-12
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s | FileCheck %s
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-f80:128:128"
target triple = "i386-apple-darwin9.5"
; a - a should be found and removed, leaving refs to only L and P
define i8* @test(i8* %a, i8* %L, i8* %P) nounwind {
; CHECK-LABEL: test:
; CHECK:       ## %bb.0: ## %entry
; CHECK-NEXT:    movl {{[0-9]+}}(%esp), %eax
; CHECK-NEXT:    subl {{[0-9]+}}(%esp), %eax
; CHECK-NEXT:    retl
entry:
        %0 = ptrtoint i8* %a to i32
        %1 = ptrtoint i8* %P to i32
        %2 = sub i32 %1, %0
        %3 = ptrtoint i8* %L to i32
	%4 = sub i32 %2, %3         	; <i32> [#uses=1]
	%5 = getelementptr i8, i8* %a, i32 %4		; <i8*> [#uses=1]
	br label %return

return:		; preds = %bb3
	ret i8* %5
}