llvm-project/llvm/test/Transforms/Reassociate/mulfactor2.ll

16 lines
452 B
LLVM

; This should turn into one multiply and one add.
; RUN: opt < %s -instcombine -reassociate -instcombine -S > %t
; RUN: grep mul %t | count 1
; RUN: grep add %t | count 1
define i32 @main(i32 %t) {
%tmp.3 = mul i32 %t, 12 ; <i32> [#uses=1]
%tmp.4 = add i32 %tmp.3, 5 ; <i32> [#uses=1]
%tmp.6 = mul i32 %t, 6 ; <i32> [#uses=1]
%tmp.8 = mul i32 %tmp.4, 3 ; <i32> [#uses=1]
%tmp.9 = add i32 %tmp.8, %tmp.6 ; <i32> [#uses=1]
ret i32 %tmp.9
}