; RUN: llc < %s -march=arm | FileCheck %s | |
define i64 @f0(i64 %A, i64 %B) { | |
; CHECK: f0 | |
; CHECK: lsrs r3, r3, #1 | |
; CHECK-NEXT: rrx r2, r2 | |
; 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: 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: lsr{{.*}}r2 | |
; CHECK-NEXT: rsb r3, r2, #32 | |
; CHECK-NEXT: sub r2, r2, #32 | |
; CHECK-NEXT: cmp r2, #0 | |
; CHECK-NEXT: orr r0, r0, r1, lsl r3 | |
; CHECK-NEXT: asrge r0, r1, 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: lsr{{.*}}r2 | |
; CHECK-NEXT: rsb r3, r2, #32 | |
; CHECK-NEXT: sub r2, r2, #32 | |
; CHECK-NEXT: cmp r2, #0 | |
; CHECK-NEXT: orr r0, r0, r1, lsl r3 | |
; CHECK-NEXT: lsrge r0, r1, r2 | |
%a = lshr i64 %x, %y | |
%b = trunc i64 %a to i32 | |
ret i32 %b | |
} |