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this got merged into lea.ll

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81298 91177308-0d34-0410-b5e6-96231b3b80d8
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Chris Lattner 2009-09-09 00:22:31 +00:00
parent e1d8d831d2
commit f43b45282f
1 changed files with 0 additions and 25 deletions
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test/CodeGen/X86/lea-neg.ll
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; RUN: llc < %s -march=x86-64 > %t
; RUN: grep negl %t | count 1
; RUN: not grep {sub\[bwlq\]} %t
; RUN: grep mov %t | count 1
; RUN: grep {leal -4(} %t | count 1
; ISel the add of -4 with a neg and use an lea for the rest of the
; arithemtic.
define i32 @test(i32 %x_offs) nounwind readnone {
entry:
%t0 = icmp sgt i32 %x_offs, 4 ; <i1> [#uses=1]
br i1 %t0, label %bb.nph, label %bb2
bb.nph: ; preds = %entry
%tmp = add i32 %x_offs, -5 ; <i32> [#uses=1]
%tmp6 = lshr i32 %tmp, 2 ; <i32> [#uses=1]
%tmp7 = mul i32 %tmp6, -4 ; <i32> [#uses=1]
%tmp8 = add i32 %tmp7, %x_offs ; <i32> [#uses=1]
%tmp9 = add i32 %tmp8, -4 ; <i32> [#uses=1]
ret i32 %tmp9
bb2: ; preds = %entry
ret i32 %x_offs
}