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[v14.x]: deps: V8: Add Power9/10 to the supported list and enable related features #38508

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[v14.x]: deps: V8: Add Power9/10 to the supported list and enable related features #38508

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deps: V8: Add Power9/10 to the supported list and enable related feat…
miladfarca May 3, 2021
e0d4d9d
fix indentation
miladfarca May 3, 2021
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2 changes: 1 addition & 1 deletion common.gypi
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Expand Up @@ -36,7 +36,7 @@

# Reset this number to 0 on major V8 upgrades.
# Increment by one for each non-official patch applied to deps/v8.
'v8_embedder_string': '-node.63',
'v8_embedder_string': '-node.64',

##### V8 defaults for Node.js #####

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11 changes: 10 additions & 1 deletion deps/v8/src/base/cpu.cc
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Expand Up @@ -27,6 +27,9 @@
#ifndef POWER_9
#define POWER_9 0x20000
#endif
#ifndef POWER_10
#define POWER_10 0x40000
#endif
#endif
#if V8_OS_POSIX
#include <unistd.h> // sysconf()
Expand Down Expand Up @@ -646,7 +649,10 @@ CPU::CPU()

part_ = -1;
if (auxv_cpu_type) {
if (strcmp(auxv_cpu_type, "power9") == 0) {
if (strcmp(auxv_cpu_type, "power10") == 0) {
part_ = PPC_POWER10;
}
else if (strcmp(auxv_cpu_type, "power9") == 0) {
part_ = PPC_POWER9;
} else if (strcmp(auxv_cpu_type, "power8") == 0) {
part_ = PPC_POWER8;
Expand All @@ -667,6 +673,9 @@ CPU::CPU()

#elif V8_OS_AIX
switch (_system_configuration.implementation) {
case POWER_10:
part_ = PPC_POWER10;
break;
case POWER_9:
part_ = PPC_POWER9;
break;
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1 change: 1 addition & 0 deletions deps/v8/src/base/cpu.h
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Expand Up @@ -70,6 +70,7 @@ class V8_BASE_EXPORT CPU final {
PPC_POWER7,
PPC_POWER8,
PPC_POWER9,
PPC_POWER10,
PPC_G4,
PPC_G5,
PPC_PA6T
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15 changes: 11 additions & 4 deletions deps/v8/src/codegen/ppc/assembler-ppc.cc
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Expand Up @@ -67,21 +67,28 @@ void CpuFeatures::ProbeImpl(bool cross_compile) {
#ifndef USE_SIMULATOR
// Probe for additional features at runtime.
base::CPU cpu;
if (cpu.part() == base::CPU::PPC_POWER9) {
if (cpu.part() == base::CPU::PPC_POWER9 ||
cpu.part() == base::CPU::PPC_POWER10) {
supported_ |= (1u << MODULO);
}
#if V8_TARGET_ARCH_PPC64
if (cpu.part() == base::CPU::PPC_POWER8) {
if (cpu.part() == base::CPU::PPC_POWER8 ||
cpu.part() == base::CPU::PPC_POWER9 ||
cpu.part() == base::CPU::PPC_POWER10) {
supported_ |= (1u << FPR_GPR_MOV);
}
#endif
if (cpu.part() == base::CPU::PPC_POWER6 ||
cpu.part() == base::CPU::PPC_POWER7 ||
cpu.part() == base::CPU::PPC_POWER8) {
cpu.part() == base::CPU::PPC_POWER8 ||
cpu.part() == base::CPU::PPC_POWER9 ||
cpu.part() == base::CPU::PPC_POWER10) {
supported_ |= (1u << LWSYNC);
}
if (cpu.part() == base::CPU::PPC_POWER7 ||
cpu.part() == base::CPU::PPC_POWER8) {
cpu.part() == base::CPU::PPC_POWER8 ||
cpu.part() == base::CPU::PPC_POWER9 ||
cpu.part() == base::CPU::PPC_POWER10) {
supported_ |= (1u << ISELECT);
supported_ |= (1u << VSX);
}
Expand Down