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[COFF, ARM64] Add __byteswap intrinsics 

Reviewers: rnk, efriedma, ssijaric, TomTan, haripul

Reviewed By: efriedma

Subscribers: javed.absar, cfe-commits, kristof.beyls

Differential Revision: https://reviews.llvm.org/D56685

llvm-svn: 351147
This commit is contained in:
Mandeep Singh Grang 2019-01-15 01:26:26 +00:00
parent fe5e5dcab0
commit 1b9337f16b
2 changed files with 32 additions and 6 deletions
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10
clang/lib/Headers/intrin.h
View File

@ -566,6 +566,16 @@ unsigned __int64 __getReg(int);
long _InterlockedAdd(long volatile *Addend, long Value);
int _ReadStatusReg(int);
void _WriteStatusReg(int, int);
static inline unsigned short _byteswap_ushort (unsigned short val) {
return __builtin_bswap16(val);
}
static inline unsigned long _byteswap_ulong (unsigned long val) {
return __builtin_bswap32(val);
}
static inline unsigned __int64 _byteswap_uint64 (unsigned __int64 val) {
return __builtin_bswap64(val);
}
#endif
/*----------------------------------------------------------------------------*\

28
clang/test/Headers/ms-arm64-intrin.cpp
View File

@ -1,13 +1,29 @@
// RUN: %clang_cc1 -triple arm64-windows \
// REQUIRES: aarch64-registered-target
// RUN: %clang_cc1 -triple arm64-windows -O1 \
// RUN: -fms-compatibility -fms-compatibility-version=17.00 \
// RUN: -ffreestanding -fsyntax-only -Werror \
// RUN: -isystem %S/Inputs/include %s -S -o - 2>&1 | FileCheck %s
// REQUIRES: aarch64-registered-target
// RUN: -isystem %S/Inputs/include %s -S -o - -emit-llvm 2>&1 \
// RUN: | FileCheck %s
#include <intrin.h>
void f() {
// CHECK: nop
void check_nop() {
// CHECK: "nop"
__nop();
}
unsigned short check_byteswap_ushort(unsigned short val) {
// CHECK: call i16 @llvm.bswap.i16(i16 %val)
return _byteswap_ushort(val);
}
unsigned long check_byteswap_ulong(unsigned long val) {
// CHECK: call i32 @llvm.bswap.i32(i32 %val)
return _byteswap_ulong(val);
}
unsigned __int64 check_byteswap_uint64(unsigned __int64 val) {
// CHECK: call i64 @llvm.bswap.i64(i64 %val)
return _byteswap_uint64(val);
}