blob: 671f90b5791aaf3b9e87162d4e31de107676ab95 [file] [log] [blame]
; NOTE: Assertions have been autogenerated by utils/
; RUN: llc -mtriple=riscv64 -mattr=+m -verify-machineinstrs < %s | FileCheck %s
; This test has multiple opportunities for SimplifyDemandedBits after type
; legalization. There are 2 opportunities on the chain feeding the LHS of the
; shl. And one opportunity on the shift amount. We previously weren't managing
; the DAGCombiner worklist correctly and failed to get the RHS.
define i32 @foo(i32 %x, i32 %y, i32 %z) {
; CHECK: # %bb.0:
; CHECK-NEXT: mulw a0, a0, a0
; CHECK-NEXT: addi a0, a0, 1
; CHECK-NEXT: mul a0, a0, a0
; CHECK-NEXT: add a0, a0, a2
; CHECK-NEXT: addi a0, a0, 1
; CHECK-NEXT: sllw a0, a0, a1
%b = mul i32 %x, %x
%c = add i32 %b, 1
%d = mul i32 %c, %c
%e = add i32 %d, %z
%f = add i32 %e, 1
%g = shl i32 %f, %y
ret i32 %g