forked from OSchip/llvm-project
48 lines
1.1 KiB
LLVM
48 lines
1.1 KiB
LLVM
; RUN: llc < %s -march=arm | FileCheck %s
|
|
|
|
define i64 @f0(i64 %A, i64 %B) {
|
|
; CHECK: f0
|
|
; CHECK: movs r3, r3, lsr #1
|
|
; CHECK-NEXT: mov r2, r2, rrx
|
|
; CHECK-NEXT: subs r0, r0, r2
|
|
; CHECK-NEXT: sbc r1, r1, r3
|
|
%tmp = bitcast i64 %A to i64
|
|
%tmp2 = lshr i64 %B, 1
|
|
%tmp3 = sub i64 %tmp, %tmp2
|
|
ret i64 %tmp3
|
|
}
|
|
|
|
define i32 @f1(i64 %x, i64 %y) {
|
|
; CHECK: f1
|
|
; CHECK: mov r0, r0, lsl r2
|
|
%a = shl i64 %x, %y
|
|
%b = trunc i64 %a to i32
|
|
ret i32 %b
|
|
}
|
|
|
|
define i32 @f2(i64 %x, i64 %y) {
|
|
; CHECK: f2
|
|
; CHECK: mov r0, r0, lsr r2
|
|
; CHECK-NEXT: rsb r12, r2, #32
|
|
; CHECK-NEXT: sub r2, r2, #32
|
|
; CHECK-NEXT: cmp r2, #0
|
|
; CHECK-NEXT: orr r0, r0, r1, lsl r12
|
|
; CHECK-NEXT: movge r0, r1, asr r2
|
|
%a = ashr i64 %x, %y
|
|
%b = trunc i64 %a to i32
|
|
ret i32 %b
|
|
}
|
|
|
|
define i32 @f3(i64 %x, i64 %y) {
|
|
; CHECK: f3
|
|
; CHECK: mov r0, r0, lsr r2
|
|
; CHECK-NEXT: rsb r12, r2, #32
|
|
; CHECK-NEXT: sub r2, r2, #32
|
|
; CHECK-NEXT: cmp r2, #0
|
|
; CHECK-NEXT: orr r0, r0, r1, lsl r12
|
|
; CHECK-NEXT: movge r0, r1, lsr r2
|
|
%a = lshr i64 %x, %y
|
|
%b = trunc i64 %a to i32
|
|
ret i32 %b
|
|
}
|