llvm.org GIT mirror llvm / release_39 test / CodeGen / X86 / lea.ll
release_39

Tree @release_39 (Download .tar.gz)

lea.ll @release_39raw · history · blame

; RUN: llc < %s -mtriple=x86_64-linux | FileCheck %s
; RUN: llc < %s -mtriple=x86_64-win32 | FileCheck %s
; RUN: llc < %s -mtriple=x86_64-linux-gnux32 | FileCheck %s
; RUN: llc < %s -mtriple=x86_64-nacl | FileCheck %s

define i32 @test1(i32 %x) nounwind {
        %tmp1 = shl i32 %x, 3
        %tmp2 = add i32 %tmp1, 7
        ret i32 %tmp2
; CHECK-LABEL: test1:
; CHECK:    leal 7(,%r[[A0:di|cx]],8), %eax
}


; ISel the add of -4 with a neg and use an lea for the rest of the
; arithemtic.
define i32 @test2(i32 %x_offs) nounwind readnone {
entry:
	%t0 = icmp sgt i32 %x_offs, 4
	br i1 %t0, label %bb.nph, label %bb2

bb.nph:
	%tmp = add i32 %x_offs, -5
	%tmp6 = lshr i32 %tmp, 2
	%tmp7 = mul i32 %tmp6, -4
	%tmp8 = add i32 %tmp7, %x_offs
	%tmp9 = add i32 %tmp8, -4
	ret i32 %tmp9

bb2:
	ret i32 %x_offs
; CHECK-LABEL: test2:
; CHECK:        leal    -5(%r[[A0:..]]), %eax
; CHECK:	andl	$-4, %eax
; CHECK:	negl	%eax
; CHECK:	leal	-4(%r[[A0]],%rax), %eax
}