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FileCheck-ize a test, and tidy it up a touch.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155310 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chandler Carruth 2012-04-22 10:11:23 +00:00
parent 1da5867236
commit 71f8bc37f2
1 changed files with 14 additions and 9 deletions
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23
test/Transforms/Reassociate/mulfactor.ll
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@ -1,14 +1,19 @@
; RUN: opt < %s -reassociate -instcombine -S | grep mul | count 2
; This should have exactly 2 multiplies when we're done.
; RUN: opt < %s -reassociate -instcombine -S | FileCheck %s
define i32 @f(i32 %a, i32 %b) {
%tmp.2 = mul i32 %a, %a ; <i32> [#uses=1]
%tmp.5 = shl i32 %a, 1 ; <i32> [#uses=1]
%tmp.6 = mul i32 %tmp.5, %b ; <i32> [#uses=1]
%tmp.10 = mul i32 %b, %b ; <i32> [#uses=1]
%tmp.7 = add i32 %tmp.6, %tmp.2 ; <i32> [#uses=1]
%tmp.11 = add i32 %tmp.7, %tmp.10 ; <i32> [#uses=1]
; CHECK: @f
; CHECK: mul
; CHECK: mul
; CHECK-NOT: mul
; CHECK: ret
entry:
%tmp.2 = mul i32 %a, %a
%tmp.5 = shl i32 %a, 1
%tmp.6 = mul i32 %tmp.5, %b
%tmp.10 = mul i32 %b, %b
%tmp.7 = add i32 %tmp.6, %tmp.2
%tmp.11 = add i32 %tmp.7, %tmp.10
ret i32 %tmp.11
}