File: 2007-02-04-OrAddrMode.ll

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llvm-toolchain-11 1%3A11.0.1-2~deb10u1
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; RUN: llc < %s -mtriple=i686-- | FileCheck %s

;; This example can't fold the or into an LEA.
define i32 @test(float ** %tmp2, i32 %tmp12) nounwind {
; CHECK-LABEL: test:
; CHECK-NOT: ret
; CHECK: orl $1, %{{.*}}
; CHECK: ret

	%tmp3 = load float*, float** %tmp2
	%tmp132 = shl i32 %tmp12, 2		; <i32> [#uses=1]
	%tmp4 = bitcast float* %tmp3 to i8*		; <i8*> [#uses=1]
	%ctg2 = getelementptr i8, i8* %tmp4, i32 %tmp132		; <i8*> [#uses=1]
	%tmp6 = ptrtoint i8* %ctg2 to i32		; <i32> [#uses=1]
	%tmp14 = or i32 %tmp6, 1		; <i32> [#uses=1]
	ret i32 %tmp14
}

;; This can!
define i32 @test2(i32 %a, i32 %b) nounwind {
; CHECK-LABEL: test2:
; CHECK-NOT: ret
; CHECK: leal 3(,%{{.*}},8)
; CHECK: ret

	%c = shl i32 %a, 3
	%d = or i32 %c, 3
	ret i32 %d
}