blob: 8b2cbc98c47a4a5468908ec9340a567c5be93a35 [file] [log] [blame]
Dan Gohmanf17a25c2007-07-18 16:29:46 +00001; With shl->mul reassociation, we can see that this is (shl A, 9) * A
2;
Dan Gohman3c7d3082009-09-11 18:01:28 +00003; RUN: opt < %s -reassociate -instcombine -S |\
Dan Gohmanf17a25c2007-07-18 16:29:46 +00004; RUN: grep {shl .*, 9}
5
Tanya Lattner028031a2008-03-19 04:36:04 +00006define i32 @test(i32 %A, i32 %B) {
7 %X = shl i32 %A, 5 ; <i32> [#uses=1]
8 %Y = shl i32 %A, 4 ; <i32> [#uses=1]
9 %Z = mul i32 %Y, %X ; <i32> [#uses=1]
10 ret i32 %Z
Dan Gohmanf17a25c2007-07-18 16:29:46 +000011}
Tanya Lattner028031a2008-03-19 04:36:04 +000012