forked from OSchip/llvm-project
18 lines
405 B
LLVM
18 lines
405 B
LLVM
; RUN: llc < %s -mtriple=arm64-eabi | FileCheck %s
|
|
|
|
; Optimize (x > -1) to (x >= 0) etc.
|
|
; Optimize (cmp (add / sub), 0): eliminate the subs used to update flag
|
|
; for comparison only
|
|
; rdar://10233472
|
|
|
|
define i32 @t1(i64 %a) nounwind ssp {
|
|
entry:
|
|
; CHECK-LABEL: t1:
|
|
; CHECK-NOT: movn
|
|
; CHECK: cmp x0, #0
|
|
; CHECK: cset w0, ge
|
|
%cmp = icmp sgt i64 %a, -1
|
|
%conv = zext i1 %cmp to i32
|
|
ret i32 %conv
|
|
}
|