mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-02-22 13:29:44 +00:00
14915fe523
emitted in canonical form. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222142 91177308-0d34-0410-b5e6-96231b3b80d8
31 lines
843 B
LLVM
31 lines
843 B
LLVM
; RUN: opt < %s -reassociate -S | FileCheck %s
|
|
|
|
define i64 @multistep1(i64 %a, i64 %b, i64 %c) {
|
|
; Check that a*a*b+a*a*c is turned into a*(a*(b+c)).
|
|
; CHECK-LABEL: @multistep1(
|
|
%t0 = mul i64 %a, %b
|
|
%t1 = mul i64 %a, %t0 ; a*(a*b)
|
|
%t2 = mul i64 %a, %c
|
|
%t3 = mul i64 %a, %t2 ; a*(a*c)
|
|
%t4 = add i64 %t1, %t3
|
|
; CHECK-NEXT: add i64 %b, %c
|
|
; CHECK-NEXT: mul i64 %a, %tmp{{.*}}
|
|
; CHECK-NEXT: mul i64 %a, %tmp{{.*}}
|
|
; CHECK-NEXT: ret
|
|
ret i64 %t4
|
|
}
|
|
|
|
define i64 @multistep2(i64 %a, i64 %b, i64 %c, i64 %d) {
|
|
; Check that a*b+a*c+d is turned into a*(b+c)+d.
|
|
; CHECK-LABEL: @multistep2(
|
|
%t0 = mul i64 %a, %b
|
|
%t1 = mul i64 %a, %c
|
|
%t2 = add i64 %t1, %d ; a*c+d
|
|
%t3 = add i64 %t0, %t2 ; a*b+(a*c+d)
|
|
; CHECK-NEXT: add i64 %b, %c
|
|
; CHECK-NEXT: mul i64 %a, %tmp{{.*}}
|
|
; CHECK-NEXT: add i64 %d, %tmp{{.*}}
|
|
; CHECK-NEXT: ret
|
|
ret i64 %t3
|
|
}
|