; NOTE: Assertions have been autogenerated by utils/update_test_checks.py | |
; RUN: opt < %s -passes=reassociate,instcombine -S | FileCheck %s | |
; There should be exactly one shift and one add left. | |
define i32 @test1(i32 %X, i32 %Y) { | |
; CHECK-LABEL: @test1( | |
; CHECK-NEXT: [[REASS_ADD:%.*]] = add i32 [[Y:%.*]], [[X:%.*]] | |
; CHECK-NEXT: [[REASS_MUL:%.*]] = shl i32 [[REASS_ADD]], 1 | |
; CHECK-NEXT: ret i32 [[REASS_MUL]] | |
; | |
%t2 = shl i32 %X, 1 | |
%t6 = shl i32 %Y, 1 | |
%t4 = add i32 %t6, %t2 | |
ret i32 %t4 | |
} | |