20 lines
727 B
LLVM
20 lines
727 B
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
|
|
; RUN: llc < %s -mtriple=i686-- | FileCheck %s
|
|
|
|
define i32 @test(i32 %X, i32 %Y) {
|
|
; Push the shl through the mul to allow an LEA to be formed, instead
|
|
; of using a shift and add separately.
|
|
; CHECK-LABEL: test:
|
|
; CHECK: # %bb.0:
|
|
; CHECK-NEXT: movl {{[0-9]+}}(%esp), %eax
|
|
; CHECK-NEXT: movl {{[0-9]+}}(%esp), %ecx
|
|
; CHECK-NEXT: imull %eax, %ecx
|
|
; CHECK-NEXT: leal (%eax,%ecx,2), %eax
|
|
; CHECK-NEXT: retl
|
|
%tmp.2 = shl i32 %X, 1 ; <i32> [#uses=1]
|
|
%tmp.3 = mul i32 %tmp.2, %Y ; <i32> [#uses=1]
|
|
%tmp.5 = add i32 %tmp.3, %Y ; <i32> [#uses=1]
|
|
ret i32 %tmp.5
|
|
}
|
|
|