mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-22 07:32:48 +00:00
5dde893c2b
(and add false dependency) when it isn't dependent on last CPSR defining instruction. rdar://8928208 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129773 91177308-0d34-0410-b5e6-96231b3b80d8
17 lines
511 B
LLVM
17 lines
511 B
LLVM
; RUN: llc < %s -mtriple=thumbv7-apple-darwin -mcpu=cortex-a9 | FileCheck %s
|
|
; Avoid some 's' 16-bit instruction which partially update CPSR (and add false
|
|
; dependency) when it isn't dependent on last CPSR defining instruction.
|
|
; rdar://8928208
|
|
|
|
define i32 @t(i32 %a, i32 %b, i32 %c, i32 %d) nounwind readnone {
|
|
entry:
|
|
; CHECK: t:
|
|
; CHECK: muls r2, r3, r2
|
|
; CHECK-NEXT: mul r0, r0, r1
|
|
; CHECK-NEXT: muls r0, r2, r0
|
|
%0 = mul nsw i32 %a, %b
|
|
%1 = mul nsw i32 %c, %d
|
|
%2 = mul nsw i32 %0, %1
|
|
ret i32 %2
|
|
}
|