File: 2008-12-23-dagcombine-6.ll

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llvm-toolchain-11 1%3A11.0.1-2~deb10u1
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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 i32 @test(i32 %a, i32 %L, i32 %P) nounwind {
; CHECK-LABEL: test:
; CHECK:       ## %bb.0: ## %entry
; CHECK-NEXT:    movl {{[0-9]+}}(%esp), %eax
; CHECK-NEXT:    addl {{[0-9]+}}(%esp), %eax
; CHECK-NEXT:    retl
entry:
        %0 = add i32 %a, %L
        %1 = add i32 %P, %0
	%2 = sub i32 %1, %a
	br label %return

return:		; preds = %bb3
	ret i32 %2
}
define i32 @test2(i32 %a, i32 %L, i32 %P) nounwind {
; CHECK-LABEL: test2:
; CHECK:       ## %bb.0: ## %entry
; CHECK-NEXT:    movl {{[0-9]+}}(%esp), %eax
; CHECK-NEXT:    addl {{[0-9]+}}(%esp), %eax
; CHECK-NEXT:    retl
entry:
        %0 = add i32 %L, %a
        %1 = add i32 %P, %0
	%2 = sub i32 %1, %a
	br label %return

return:		; preds = %bb3
	ret i32 %2
}