[llvm-commits] CVS: llvm/test/Regression/Transforms/Reassociate/shift-factor.ll

[Chris Lattner]

Changes in directory llvm/test/Regression/Transforms/Reassociate:

shift-factor.ll added (r1.1)
---
Log message:

Test that we can reassociate (x<<1)+(y<<1) -> (X+Y)<<1.


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Diffs of the changes:  (+11 -0)

 shift-factor.ll |   11 +++++++++++
 1 files changed, 11 insertions(+)


Index: llvm/test/Regression/Transforms/Reassociate/shift-factor.ll
diff -c /dev/null llvm/test/Regression/Transforms/Reassociate/shift-factor.ll:1.1
*** /dev/null	Tue Mar 14 00:54:42 2006
--- llvm/test/Regression/Transforms/Reassociate/shift-factor.ll	Tue Mar 14 00:54:32 2006
***************
*** 0 ****
--- 1,11 ----
+ ; There should be exactly one shift and one add left.
+ ; RUN: llvm-as < %s | opt -reassociate -instcombine | llvm-dis | grep shl | wc -l | grep 1 &&
+ ; RUN: llvm-as < %s | opt -reassociate -instcombine | llvm-dis | grep add | wc -l | grep 1
+ 
+ int %test(int %X, int %Y) {
+         %tmp.2 = shl int %X, ubyte 1            ; <int> [#uses=1]
+         %tmp.6 = shl int %Y, ubyte 1            ; <int> [#uses=1]
+         %tmp.4 = add int %tmp.6, %tmp.2         ; <int> [#uses=1]
+         ret int %tmp.4
+ }
+