58 lines
1.3 KiB
LLVM
58 lines
1.3 KiB
LLVM
; RUN: llc -mtriple=arm-eabi -mcpu=cortex-a8 %s -o - | FileCheck %s -check-prefix=CHECK -check-prefix=CHECK-LE
|
|
; RUN: llc -mtriple=armeb-eabi -mcpu=cortex-a8 %s -o - | FileCheck %s -check-prefix=CHECK -check-prefix=CHECK-BE
|
|
|
|
; 171 = 0x000000ab
|
|
define i64 @f1(i64 %a) {
|
|
; CHECK: f1
|
|
; CHECK-LE: subs r0, r0, #171
|
|
; CHECK-LE: sbc r1, r1, #0
|
|
; CHECK-BE: subs r1, r1, #171
|
|
; CHECK-BE: sbc r0, r0, #0
|
|
%tmp = sub i64 %a, 171
|
|
ret i64 %tmp
|
|
}
|
|
|
|
; 66846720 = 0x03fc0000
|
|
define i64 @f2(i64 %a) {
|
|
; CHECK: f2
|
|
; CHECK-LE: subs r0, r0, #66846720
|
|
; CHECK-LE: sbc r1, r1, #0
|
|
; CHECK-BE: subs r1, r1, #66846720
|
|
; CHECK-BE: sbc r0, r0, #0
|
|
%tmp = sub i64 %a, 66846720
|
|
ret i64 %tmp
|
|
}
|
|
|
|
; 734439407618 = 0x000000ab00000002
|
|
define i64 @f3(i64 %a) {
|
|
; CHECK: f3
|
|
; CHECK-LE: subs r0, r0, #2
|
|
; CHECK-LE: sbc r1, r1, #171
|
|
; CHECK-BE: subs r1, r1, #2
|
|
; CHECK-BE: sbc r0, r0, #171
|
|
%tmp = sub i64 %a, 734439407618
|
|
ret i64 %tmp
|
|
}
|
|
|
|
define i32 @f4(i32 %x) {
|
|
entry:
|
|
; CHECK: f4
|
|
; CHECK: rsbs
|
|
%sub = sub i32 1, %x
|
|
%cmp = icmp ugt i32 %sub, 0
|
|
%sel = select i1 %cmp, i32 1, i32 %sub
|
|
ret i32 %sel
|
|
}
|
|
|
|
; rdar://11726136
|
|
define i32 @f5(i32 %x) {
|
|
entry:
|
|
; CHECK: f5
|
|
; CHECK: movw r1, #65535
|
|
; CHECK-NOT: movt
|
|
; CHECK-NOT: add
|
|
; CHECK: sub r0, r0, r1
|
|
%sub = add i32 %x, -65535
|
|
ret i32 %sub
|
|
}
|