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|
; RUN: llc < %s -march=arm64 -asm-verbose=false | FileCheck %s
define i32 @t1(i32 %a, i32 %b) nounwind readnone ssp {
entry:
; CHECK-LABEL: t1:
; CHECK: add w0, w1, w0
; CHECK: ret
%add = add i32 %b, %a
ret i32 %add
}
define i32 @t2(i32 %a, i32 %b) nounwind readnone ssp {
entry:
; CHECK-LABEL: t2:
; CHECK: udiv w0, w0, w1
; CHECK: ret
%udiv = udiv i32 %a, %b
ret i32 %udiv
}
define i64 @t3(i64 %a, i64 %b) nounwind readnone ssp {
entry:
; CHECK-LABEL: t3:
; CHECK: udiv x0, x0, x1
; CHECK: ret
%udiv = udiv i64 %a, %b
ret i64 %udiv
}
define i32 @t4(i32 %a, i32 %b) nounwind readnone ssp {
entry:
; CHECK-LABEL: t4:
; CHECK: sdiv w0, w0, w1
; CHECK: ret
%sdiv = sdiv i32 %a, %b
ret i32 %sdiv
}
define i64 @t5(i64 %a, i64 %b) nounwind readnone ssp {
entry:
; CHECK-LABEL: t5:
; CHECK: sdiv x0, x0, x1
; CHECK: ret
%sdiv = sdiv i64 %a, %b
ret i64 %sdiv
}
define i32 @t6(i32 %a, i32 %b) nounwind readnone ssp {
entry:
; CHECK-LABEL: t6:
; CHECK: lsl w0, w0, w1
; CHECK: ret
%shl = shl i32 %a, %b
ret i32 %shl
}
define i64 @t7(i64 %a, i64 %b) nounwind readnone ssp {
entry:
; CHECK-LABEL: t7:
; CHECK: lsl x0, x0, x1
; CHECK: ret
%shl = shl i64 %a, %b
ret i64 %shl
}
define i32 @t8(i32 %a, i32 %b) nounwind readnone ssp {
entry:
; CHECK-LABEL: t8:
; CHECK: lsr w0, w0, w1
; CHECK: ret
%lshr = lshr i32 %a, %b
ret i32 %lshr
}
define i64 @t9(i64 %a, i64 %b) nounwind readnone ssp {
entry:
; CHECK-LABEL: t9:
; CHECK: lsr x0, x0, x1
; CHECK: ret
%lshr = lshr i64 %a, %b
ret i64 %lshr
}
define i32 @t10(i32 %a, i32 %b) nounwind readnone ssp {
entry:
; CHECK-LABEL: t10:
; CHECK: asr w0, w0, w1
; CHECK: ret
%ashr = ashr i32 %a, %b
ret i32 %ashr
}
define i64 @t11(i64 %a, i64 %b) nounwind readnone ssp {
entry:
; CHECK-LABEL: t11:
; CHECK: asr x0, x0, x1
; CHECK: ret
%ashr = ashr i64 %a, %b
ret i64 %ashr
}
define i32 @t12(i16 %a, i32 %x) nounwind ssp {
entry:
; CHECK-LABEL: t12:
; CHECK: add w0, w1, w0, sxth
; CHECK: ret
%c = sext i16 %a to i32
%e = add i32 %x, %c
ret i32 %e
}
define i32 @t13(i16 %a, i32 %x) nounwind ssp {
entry:
; CHECK-LABEL: t13:
; CHECK: add w0, w1, w0, sxth #2
; CHECK: ret
%c = sext i16 %a to i32
%d = shl i32 %c, 2
%e = add i32 %x, %d
ret i32 %e
}
define i64 @t14(i16 %a, i64 %x) nounwind ssp {
entry:
; CHECK-LABEL: t14:
; CHECK: add x0, x1, w0, uxth #3
; CHECK: ret
%c = zext i16 %a to i64
%d = shl i64 %c, 3
%e = add i64 %x, %d
ret i64 %e
}
; rdar://9160598
define i64 @t15(i64 %a, i64 %x) nounwind ssp {
entry:
; CHECK-LABEL: t15:
; CHECK: add x0, x1, w0, uxtw
; CHECK: ret
%b = and i64 %a, 4294967295
%c = add i64 %x, %b
ret i64 %c
}
define i64 @t16(i64 %x) nounwind ssp {
entry:
; CHECK-LABEL: t16:
; CHECK: lsl x0, x0, #1
; CHECK: ret
%a = shl i64 %x, 1
ret i64 %a
}
; rdar://9166974
define i64 @t17(i16 %a, i64 %x) nounwind ssp {
entry:
; CHECK-LABEL: t17:
; CHECK: sxth [[REG:x[0-9]+]], w0
; CHECK: neg x0, [[REG]], lsl #32
; CHECK: ret
%tmp16 = sext i16 %a to i64
%tmp17 = mul i64 %tmp16, -4294967296
ret i64 %tmp17
}
define i32 @t18(i32 %a, i32 %b) nounwind readnone ssp {
entry:
; CHECK-LABEL: t18:
; CHECK: sdiv w0, w0, w1
; CHECK: ret
%sdiv = call i32 @llvm.aarch64.sdiv.i32(i32 %a, i32 %b)
ret i32 %sdiv
}
define i64 @t19(i64 %a, i64 %b) nounwind readnone ssp {
entry:
; CHECK-LABEL: t19:
; CHECK: sdiv x0, x0, x1
; CHECK: ret
%sdiv = call i64 @llvm.aarch64.sdiv.i64(i64 %a, i64 %b)
ret i64 %sdiv
}
define i32 @t20(i32 %a, i32 %b) nounwind readnone ssp {
entry:
; CHECK-LABEL: t20:
; CHECK: udiv w0, w0, w1
; CHECK: ret
%udiv = call i32 @llvm.aarch64.udiv.i32(i32 %a, i32 %b)
ret i32 %udiv
}
define i64 @t21(i64 %a, i64 %b) nounwind readnone ssp {
entry:
; CHECK-LABEL: t21:
; CHECK: udiv x0, x0, x1
; CHECK: ret
%udiv = call i64 @llvm.aarch64.udiv.i64(i64 %a, i64 %b)
ret i64 %udiv
}
declare i32 @llvm.aarch64.sdiv.i32(i32, i32) nounwind readnone
declare i64 @llvm.aarch64.sdiv.i64(i64, i64) nounwind readnone
declare i32 @llvm.aarch64.udiv.i32(i32, i32) nounwind readnone
declare i64 @llvm.aarch64.udiv.i64(i64, i64) nounwind readnone
; 32-bit not.
define i32 @inv_32(i32 %x) nounwind ssp {
entry:
; CHECK: inv_32
; CHECK: mvn w0, w0
; CHECK: ret
%inv = xor i32 %x, -1
ret i32 %inv
}
; 64-bit not.
define i64 @inv_64(i64 %x) nounwind ssp {
entry:
; CHECK: inv_64
; CHECK: mvn x0, x0
; CHECK: ret
%inv = xor i64 %x, -1
ret i64 %inv
}
; Multiplying by a power of two plus or minus one is better done via shift
; and add/sub rather than the madd/msub instructions. The latter are 4+ cycles,
; and the former are two (total for the two instruction sequence for subtract).
define i32 @f0(i32 %a) nounwind readnone ssp {
; CHECK-LABEL: f0:
; CHECK-NEXT: add w0, w0, w0, lsl #3
; CHECK-NEXT: ret
%res = mul i32 %a, 9
ret i32 %res
}
define i64 @f1(i64 %a) nounwind readnone ssp {
; CHECK-LABEL: f1:
; CHECK-NEXT: lsl x8, x0, #4
; CHECK-NEXT: sub x0, x8, x0
; CHECK-NEXT: ret
%res = mul i64 %a, 15
ret i64 %res
}
define i32 @f2(i32 %a) nounwind readnone ssp {
; CHECK-LABEL: f2:
; CHECK-NEXT: lsl w8, w0, #3
; CHECK-NEXT: sub w0, w8, w0
; CHECK-NEXT: ret
%res = mul nsw i32 %a, 7
ret i32 %res
}
define i64 @f3(i64 %a) nounwind readnone ssp {
; CHECK-LABEL: f3:
; CHECK-NEXT: add x0, x0, x0, lsl #4
; CHECK-NEXT: ret
%res = mul nsw i64 %a, 17
ret i64 %res
}
define i32 @f4(i32 %a) nounwind readnone ssp {
; CHECK-LABEL: f4:
; CHECK-NEXT: add w0, w0, w0, lsl #1
; CHECK-NEXT: ret
%res = mul i32 %a, 3
ret i32 %res
}
|
