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don't use 'not' when we can use a positive test

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35402 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2007-03-28 01:43:43 +00:00
parent 12fa2224e4
commit 9495a0c232
1 changed files with 6 additions and 8 deletions
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14
test/Transforms/InstCombine/2002-05-14-SubFailure.ll
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@ -1,12 +1,10 @@
; Instcombine was missing a test that caused it to make illegal transformations
; sometimes. In this case, it transforms the sub into an add:
; RUN: echo foo
; RUN: llvm-upgrade < %s | llvm-as | opt -instcombine | llvm-dis | not grep add
; RUN: llvm-as < %s | opt -instcombine | llvm-dis | grep sub
;
int "test"(int %i, int %j) {
%A = mul int %i, %j
%B = sub int 2, %A
ret int %B
define i32 @test(i32 %i, i32 %j) {
%A = mul i32 %i, %j
%B = sub i32 2, %A
ret i32 %B
}