You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
66 lines
2.4 KiB
66 lines
2.4 KiB
; RUN: llc < %s -march=arm64 -mcpu=cyclone | FileCheck %s
|
|
|
|
define i128 @shl(i128 %r, i128 %s) nounwind readnone {
|
|
; CHECK-LABEL: shl:
|
|
; CHECK: orr w[[SIXTY_FOUR:[0-9]+]], wzr, #0x40
|
|
; CHECK: sub [[REV_SHIFT:x[0-9]+]], x[[SIXTY_FOUR]], x2
|
|
; CHECK: lsr [[LO_FOR_HI_NORMAL:x[0-9]+]], x0, [[REV_SHIFT]]
|
|
; CHECK: cmp x2, #0
|
|
; CHECK: csel [[LO_FOR_HI:x[0-9]+]], xzr, [[LO_FOR_HI_NORMAL]], eq
|
|
; CHECK: lsl [[HI_FOR_HI:x[0-9]+]], x1, x2
|
|
; CHECK: orr [[HI_NORMAL:x[0-9]+]], [[LO_FOR_HI]], [[HI_FOR_HI]]
|
|
; CHECK: sub [[EXTRA_SHIFT:x[0-9]+]], x2, #64
|
|
; CHECK: lsl [[HI_BIG_SHIFT:x[0-9]+]], x0, [[EXTRA_SHIFT]]
|
|
; CHECK: cmp [[EXTRA_SHIFT]], #0
|
|
; CHECK: csel x1, [[HI_BIG_SHIFT]], [[HI_NORMAL]], ge
|
|
; CHECK: lsl [[SMALLSHIFT_LO:x[0-9]+]], x0, x2
|
|
; CHECK: csel x0, xzr, [[SMALLSHIFT_LO]], ge
|
|
; CHECK: ret
|
|
|
|
%shl = shl i128 %r, %s
|
|
ret i128 %shl
|
|
}
|
|
|
|
define i128 @ashr(i128 %r, i128 %s) nounwind readnone {
|
|
; CHECK-LABEL: ashr:
|
|
; CHECK: orr w[[SIXTY_FOUR:[0-9]+]], wzr, #0x40
|
|
; CHECK: sub [[REV_SHIFT:x[0-9]+]], x[[SIXTY_FOUR]], x2
|
|
; CHECK: lsl [[HI_FOR_LO_NORMAL:x[0-9]+]], x1, [[REV_SHIFT]]
|
|
; CHECK: cmp x2, #0
|
|
; CHECK: csel [[HI_FOR_LO:x[0-9]+]], xzr, [[HI_FOR_LO_NORMAL]], eq
|
|
; CHECK: lsr [[LO_FOR_LO:x[0-9]+]], x0, x2
|
|
; CHECK: orr [[LO_NORMAL:x[0-9]+]], [[LO_FOR_LO]], [[HI_FOR_LO]]
|
|
; CHECK: sub [[EXTRA_SHIFT:x[0-9]+]], x2, #64
|
|
; CHECK: asr [[LO_BIG_SHIFT:x[0-9]+]], x1, [[EXTRA_SHIFT]]
|
|
; CHECK: cmp [[EXTRA_SHIFT]], #0
|
|
; CHECK: csel x0, [[LO_BIG_SHIFT]], [[LO_NORMAL]], ge
|
|
; CHECK: asr [[SMALLSHIFT_HI:x[0-9]+]], x1, x2
|
|
; CHECK: asr [[BIGSHIFT_HI:x[0-9]+]], x1, #63
|
|
; CHECK: csel x1, [[BIGSHIFT_HI]], [[SMALLSHIFT_HI]], ge
|
|
; CHECK: ret
|
|
|
|
%shr = ashr i128 %r, %s
|
|
ret i128 %shr
|
|
}
|
|
|
|
define i128 @lshr(i128 %r, i128 %s) nounwind readnone {
|
|
; CHECK-LABEL: lshr:
|
|
; CHECK: orr w[[SIXTY_FOUR:[0-9]+]], wzr, #0x40
|
|
; CHECK: sub [[REV_SHIFT:x[0-9]+]], x[[SIXTY_FOUR]], x2
|
|
; CHECK: lsl [[HI_FOR_LO_NORMAL:x[0-9]+]], x1, [[REV_SHIFT]]
|
|
; CHECK: cmp x2, #0
|
|
; CHECK: csel [[HI_FOR_LO:x[0-9]+]], xzr, [[HI_FOR_LO_NORMAL]], eq
|
|
; CHECK: lsr [[LO_FOR_LO:x[0-9]+]], x0, x2
|
|
; CHECK: orr [[LO_NORMAL:x[0-9]+]], [[LO_FOR_LO]], [[HI_FOR_LO]]
|
|
; CHECK: sub [[EXTRA_SHIFT:x[0-9]+]], x2, #64
|
|
; CHECK: lsr [[LO_BIG_SHIFT:x[0-9]+]], x1, [[EXTRA_SHIFT]]
|
|
; CHECK: cmp [[EXTRA_SHIFT]], #0
|
|
; CHECK: csel x0, [[LO_BIG_SHIFT]], [[LO_NORMAL]], ge
|
|
; CHECK: lsr [[SMALLSHIFT_HI:x[0-9]+]], x1, x2
|
|
; CHECK: csel x1, xzr, [[SMALLSHIFT_HI]], ge
|
|
; CHECK: ret
|
|
|
|
%shr = lshr i128 %r, %s
|
|
ret i128 %shr
|
|
}
|