mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-02-01 02:33:44 +00:00
7b871b3464
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98057 91177308-0d34-0410-b5e6-96231b3b80d8
29 lines
703 B
LLVM
29 lines
703 B
LLVM
; RUN: llvm-as < %s | llc -march=xcore | FileCheck %s
|
|
|
|
; Only needs one ladd
|
|
define i64 @f1(i32 %x, i32 %y) nounwind {
|
|
entry:
|
|
%0 = zext i32 %x to i64 ; <i64> [#uses=1]
|
|
%1 = zext i32 %y to i64 ; <i64> [#uses=1]
|
|
%2 = add i64 %1, %0 ; <i64> [#uses=1]
|
|
ret i64 %2
|
|
}
|
|
; CHECK: f1:
|
|
; CHECK: ldc r2, 0
|
|
; CHECK-NEXT: ladd r1, r0, r1, r0, r2
|
|
; CHECK-NEXT: retsp 0
|
|
|
|
; Only needs one lsub and one neg
|
|
define i64 @f2(i32 %x, i32 %y) nounwind {
|
|
entry:
|
|
%0 = zext i32 %x to i64 ; <i64> [#uses=1]
|
|
%1 = zext i32 %y to i64 ; <i64> [#uses=1]
|
|
%2 = sub i64 %1, %0 ; <i64> [#uses=1]
|
|
ret i64 %2
|
|
}
|
|
; CHECK: f2:
|
|
; CHECK: ldc r2, 0
|
|
; CHECK-NEXT: lsub r1, r0, r1, r0, r2
|
|
; CHECK-NEXT: neg r1, r1
|
|
; CHECK-NEXT: retsp 0
|