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test case we alredy get right.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92380 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2010-01-01 00:50:00 +00:00
parent 371da99e64
commit 75954e0bbd
1 changed files with 12 additions and 0 deletions
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12
test/Transforms/Reassociate/basictest.ll
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@ -179,3 +179,15 @@ define i32 @test12(i32 %X) {
; CHECK-NEXT: ret i32
}
define i32 @test13(i32 %X1, i32 %X2, i32 %X3) {
%A = sub i32 0, %X1
%B = mul i32 %A, %X2 ; -X1*X2
%C = mul i32 %X1, %X3 ; X1*X3
%D = add i32 %B, %C ; -X1*X2 + X1*X3 -> X1*(X3-X2)
ret i32 %D
; CHECK: @test13
; CHECK-NEXT: sub i32 %X3, %X2
; CHECK-NEXT: mul i32 {{.*}}, %X1
; CHECK-NEXT: ret i32
}