inc-of-add.ll
2.65 KB
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=aarch64-unknown-unknown | FileCheck %s
; These two forms are equivalent:
; sub %y, (xor %x, -1)
; add (add %x, 1), %y
; Some targets may prefer one to the other.
define i8 @scalar_i8(i8 %x, i8 %y) nounwind {
; CHECK-LABEL: scalar_i8:
; CHECK: // %bb.0:
; CHECK-NEXT: add w8, w0, w1
; CHECK-NEXT: add w0, w8, #1 // =1
; CHECK-NEXT: ret
%t0 = add i8 %x, 1
%t1 = add i8 %y, %t0
ret i8 %t1
}
define i16 @scalar_i16(i16 %x, i16 %y) nounwind {
; CHECK-LABEL: scalar_i16:
; CHECK: // %bb.0:
; CHECK-NEXT: add w8, w0, w1
; CHECK-NEXT: add w0, w8, #1 // =1
; CHECK-NEXT: ret
%t0 = add i16 %x, 1
%t1 = add i16 %y, %t0
ret i16 %t1
}
define i32 @scalar_i32(i32 %x, i32 %y) nounwind {
; CHECK-LABEL: scalar_i32:
; CHECK: // %bb.0:
; CHECK-NEXT: add w8, w0, w1
; CHECK-NEXT: add w0, w8, #1 // =1
; CHECK-NEXT: ret
%t0 = add i32 %x, 1
%t1 = add i32 %y, %t0
ret i32 %t1
}
define i64 @scalar_i64(i64 %x, i64 %y) nounwind {
; CHECK-LABEL: scalar_i64:
; CHECK: // %bb.0:
; CHECK-NEXT: add x8, x0, x1
; CHECK-NEXT: add x0, x8, #1 // =1
; CHECK-NEXT: ret
%t0 = add i64 %x, 1
%t1 = add i64 %y, %t0
ret i64 %t1
}
define <16 x i8> @vector_i128_i8(<16 x i8> %x, <16 x i8> %y) nounwind {
; CHECK-LABEL: vector_i128_i8:
; CHECK: // %bb.0:
; CHECK-NEXT: mvn v0.16b, v0.16b
; CHECK-NEXT: sub v0.16b, v1.16b, v0.16b
; CHECK-NEXT: ret
%t0 = add <16 x i8> %x, <i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1>
%t1 = add <16 x i8> %y, %t0
ret <16 x i8> %t1
}
define <8 x i16> @vector_i128_i16(<8 x i16> %x, <8 x i16> %y) nounwind {
; CHECK-LABEL: vector_i128_i16:
; CHECK: // %bb.0:
; CHECK-NEXT: mvn v0.16b, v0.16b
; CHECK-NEXT: sub v0.8h, v1.8h, v0.8h
; CHECK-NEXT: ret
%t0 = add <8 x i16> %x, <i16 1, i16 1, i16 1, i16 1, i16 1, i16 1, i16 1, i16 1>
%t1 = add <8 x i16> %y, %t0
ret <8 x i16> %t1
}
define <4 x i32> @vector_i128_i32(<4 x i32> %x, <4 x i32> %y) nounwind {
; CHECK-LABEL: vector_i128_i32:
; CHECK: // %bb.0:
; CHECK-NEXT: mvn v0.16b, v0.16b
; CHECK-NEXT: sub v0.4s, v1.4s, v0.4s
; CHECK-NEXT: ret
%t0 = add <4 x i32> %x, <i32 1, i32 1, i32 1, i32 1>
%t1 = add <4 x i32> %y, %t0
ret <4 x i32> %t1
}
define <2 x i64> @vector_i128_i64(<2 x i64> %x, <2 x i64> %y) nounwind {
; CHECK-LABEL: vector_i128_i64:
; CHECK: // %bb.0:
; CHECK-NEXT: mvn v0.16b, v0.16b
; CHECK-NEXT: sub v0.2d, v1.2d, v0.2d
; CHECK-NEXT: ret
%t0 = add <2 x i64> %x, <i64 1, i64 1>
%t1 = add <2 x i64> %y, %t0
ret <2 x i64> %t1
}