aboutsummaryrefslogtreecommitdiff
path: root/llvm/lib/Support/Host.cpp
diff options
context:
space:
mode:
authorFangrui Song <i@maskray.me>2022-11-23 21:09:44 -0800
committerFangrui Song <i@maskray.me>2022-11-23 21:09:45 -0800
commit875adb400754bb331d3540af67c94577ff58e8c8 (patch)
treeecbc42607652d981ca486f09094a2fa6832f9c1f /llvm/lib/Support/Host.cpp
parent93b553e3f2e4f53ce3dda13cd18dbc43643a535b (diff)
downloadllvm-875adb400754bb331d3540af67c94577ff58e8c8.zip
llvm-875adb400754bb331d3540af67c94577ff58e8c8.tar.gz
llvm-875adb400754bb331d3540af67c94577ff58e8c8.tar.bz2
Host: Internalize computeHostNumPhysicalCores/computeHostNumHardwareThreads
Windows computeHostNumPhysicalCores is defined by Threading.cpp. Leave it unchanged.
Diffstat (limited to 'llvm/lib/Support/Host.cpp')
-rw-r--r--llvm/lib/Support/Host.cpp12
1 files changed, 7 insertions, 5 deletions
diff --git a/llvm/lib/Support/Host.cpp b/llvm/lib/Support/Host.cpp
index 6bb452a..713227c 100644
--- a/llvm/lib/Support/Host.cpp
+++ b/llvm/lib/Support/Host.cpp
@@ -1580,7 +1580,7 @@ VendorSignatures getVendorSignature(unsigned *MaxLeaf) {
// On Linux, the number of physical cores can be computed from /proc/cpuinfo,
// using the number of unique physical/core id pairs. The following
// implementation reads the /proc/cpuinfo format on an x86_64 system.
-int computeHostNumPhysicalCores() {
+static int computeHostNumPhysicalCores() {
// Enabled represents the number of physical id/core id pairs with at least
// one processor id enabled by the CPU affinity mask.
cpu_set_t Affinity, Enabled;
@@ -1625,9 +1625,11 @@ int computeHostNumPhysicalCores() {
return CPU_COUNT(&Enabled);
}
#elif defined(__linux__) && defined(__s390x__)
-int computeHostNumPhysicalCores() { return sysconf(_SC_NPROCESSORS_ONLN); }
+static int computeHostNumPhysicalCores() {
+ return sysconf(_SC_NPROCESSORS_ONLN);
+}
#elif defined(__linux__) && !defined(__ANDROID__)
-int computeHostNumPhysicalCores() {
+static int computeHostNumPhysicalCores() {
cpu_set_t Affinity;
if (sched_getaffinity(0, sizeof(Affinity), &Affinity) == 0)
return CPU_COUNT(&Affinity);
@@ -1647,7 +1649,7 @@ int computeHostNumPhysicalCores() {
}
#elif defined(__APPLE__)
// Gets the number of *physical cores* on the machine.
-int computeHostNumPhysicalCores() {
+static int computeHostNumPhysicalCores() {
uint32_t count;
size_t len = sizeof(count);
sysctlbyname("hw.physicalcpu", &count, &len, NULL, 0);
@@ -1662,7 +1664,7 @@ int computeHostNumPhysicalCores() {
return count;
}
#elif defined(__MVS__)
-int computeHostNumPhysicalCores() {
+static int computeHostNumPhysicalCores() {
enum {
// Byte offset of the pointer to the Communications Vector Table (CVT) in
// the Prefixed Save Area (PSA). The table entry is a 31-bit pointer and