File: ms-barriers-intrinsics.c

package info (click to toggle)
llvm-toolchain-17 1%3A17.0.6-22
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,799,624 kB
  • sloc: cpp: 6,428,607; ansic: 1,383,196; asm: 793,408; python: 223,504; objc: 75,364; f90: 60,502; lisp: 33,869; pascal: 15,282; sh: 9,684; perl: 7,453; ml: 4,937; awk: 3,523; makefile: 2,889; javascript: 2,149; xml: 888; fortran: 619; cs: 573
file content (39 lines) | stat: -rw-r--r-- 1,426 bytes parent folder | download | duplicates (13)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
// RUN: %clang_cc1 -ffreestanding -fms-extensions -fms-compatibility -fms-compatibility-version=17.00 \
// RUN:         -triple i686--windows -emit-llvm %s -o - \
// RUN:         | FileCheck %s
// RUN: %clang_cc1 -ffreestanding -fms-extensions -fms-compatibility -fms-compatibility-version=17.00 \
// RUN:         -triple x86_64--windows -emit-llvm %s -o - \
// RUN:         | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-X64

// intrin.h needs size_t, but -ffreestanding prevents us from getting it from
// stddef.h.  Work around it with this typedef.
typedef __SIZE_TYPE__ size_t;

#include <intrin.h>

void test_ReadWriteBarrier(void) { _ReadWriteBarrier(); }
// CHECK-LABEL: define dso_local void @test_ReadWriteBarrier
// CHECK:   fence syncscope("singlethread") seq_cst
// CHECK:   ret void
// CHECK: }

void test_ReadBarrier(void) { _ReadBarrier(); }
// CHECK-LABEL: define dso_local void @test_ReadBarrier
// CHECK:   fence syncscope("singlethread") seq_cst
// CHECK:   ret void
// CHECK: }

void test_WriteBarrier(void) { _WriteBarrier(); }
// CHECK-LABEL: define dso_local void @test_WriteBarrier
// CHECK:   fence syncscope("singlethread") seq_cst
// CHECK:   ret void
// CHECK: }

#if defined(__x86_64__)
void test__faststorefence(void) { __faststorefence(); }
// CHECK-X64-LABEL: define dso_local void @test__faststorefence
// CHECK-X64:   fence seq_cst
// CHECK-X64:   ret void
// CHECK-X64: }
#endif