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ARM64: add extra NEG pattern. 

llvm-svn: 206609
This commit is contained in:
Tim Northover 2014-04-18 14:54:35 +00:00
parent 62bcd925c0
commit be3941cc79
3 changed files with 11 additions and 0 deletions
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2
llvm/lib/Target/ARM64/ARM64InstrInfo.td
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@ -2664,6 +2664,8 @@ defm UQXTN : SIMDTwoScalarMixedBHS<1, 0b10100, "uqxtn", int_arm64_neon_scalar_u
defm USQADD : SIMDTwoScalarBHSDTied< 1, 0b00011, "usqadd",
int_arm64_neon_usqadd>;
def : Pat<(ARM64neg (v1i64 V64:$Rn)), (NEGv1i64 V64:$Rn)>;
def : Pat<(v1i64 (int_arm64_neon_fcvtas (v1f64 FPR64:$Rn))),
(FCVTASv1i64 FPR64:$Rn)>;
def : Pat<(v1i64 (int_arm64_neon_fcvtau (v1f64 FPR64:$Rn))),

1
llvm/test/CodeGen/AArch64/neon-shl-ashr-lshr.ll
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@ -1,4 +1,5 @@
; RUN: llc < %s -verify-machineinstrs -mtriple=aarch64-none-linux-gnu -mattr=+neon | FileCheck %s
; arm64 has all tests not involving v1iN.
define <8 x i8> @shl.v8i8(<8 x i8> %a, <8 x i8> %b) {
; CHECK-LABEL: shl.v8i8:

8
llvm/test/CodeGen/ARM64/vshift.ll
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@ -1907,3 +1907,11 @@ declare <16 x i8> @llvm.arm64.neon.vsli.v16i8(<16 x i8>, <16 x i8>, i32) nounwin
declare <8 x i16> @llvm.arm64.neon.vsli.v8i16(<8 x i16>, <8 x i16>, i32) nounwind readnone
declare <4 x i32> @llvm.arm64.neon.vsli.v4i32(<4 x i32>, <4 x i32>, i32) nounwind readnone
declare <2 x i64> @llvm.arm64.neon.vsli.v2i64(<2 x i64>, <2 x i64>, i32) nounwind readnone
define <1 x i64> @ashr_v1i64(<1 x i64> %a, <1 x i64> %b) {
; CHECK-LABEL: ashr_v1i64:
; CHECK: neg d{{[0-9]+}}, d{{[0-9]+}}
; CHECK: sshl d{{[0-9]+}}, d{{[0-9]+}}, d{{[0-9]+}}
%c = ashr <1 x i64> %a, %b
ret <1 x i64> %c
}