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Support building for Windows on 64-bit Arm (#2355)

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Support to build for Windows on Arm.
This commit is contained in:
Sreelakshmi Haridas Maruthur
2025-08-12 09:46:23 -06:00
committed by GitHub
parent 4115d04ae0
commit aef863afa2
9 changed files with 86 additions and 49 deletions
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22
test_common/harness/rounding_mode.cpp
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@@ -193,7 +193,8 @@ RoundingMode get_round(void)
// basic_test_conversions.c in which case, these function are at
// liberty to do nothing.
//
#if defined(__i386__) || defined(__x86_64__) || defined(_WIN32)
#if defined(__i386__) || defined(__x86_64__) || defined(_M_IX86) \
|| defined(_M_X64)
#include <xmmintrin.h>
#elif defined(__PPC__)
#include <fpu_control.h>
@@ -203,18 +204,24 @@ RoundingMode get_round(void)
void *FlushToZero(void)
{
#if defined(__APPLE__) || defined(__linux__) || defined(_WIN32)
#if defined(__i386__) || defined(__x86_64__) || defined(_MSC_VER)
#if defined(__i386__) || defined(__x86_64__) || defined(_M_IX86) \
|| defined(_M_X64)
union {
unsigned int i;
void *p;
} u = { _mm_getcsr() };
_mm_setcsr(u.i | 0x8040);
return u.p;
#elif defined(__arm__) || defined(__aarch64__)
#elif defined(__arm__) || defined(__aarch64__) // Clang
int64_t fpscr;
_FPU_GETCW(fpscr);
_FPU_SETCW(fpscr | FPSCR_FZ);
return NULL;
#elif defined(_M_ARM64) // Visual Studio
uint64_t fpscr;
fpscr = _ReadStatusReg(ARM64_FPSR);
_WriteStatusReg(ARM64_FPCR, fpscr | (1U << 24));
return NULL;
#elif defined(__PPC__)
fpu_control_t flags = 0;
_FPU_GETCW(flags);
@@ -237,16 +244,21 @@ void *FlushToZero(void)
void UnFlushToZero(void *p)
{
#if defined(__APPLE__) || defined(__linux__) || defined(_WIN32)
#if defined(__i386__) || defined(__x86_64__) || defined(_MSC_VER)
#if defined(__i386__) || defined(__x86_64__) || defined(_M_IX86) \
|| defined(_M_X64)
union {
void *p;
unsigned int i;
} u = { p };
_mm_setcsr(u.i);
#elif defined(__arm__) || defined(__aarch64__)
#elif defined(__arm__) || defined(__aarch64__) // Clang
int64_t fpscr;
_FPU_GETCW(fpscr);
_FPU_SETCW(fpscr & ~FPSCR_FZ);
#elif defined(_M_ARM64) // Visual Studio
uint64_t fpscr;
fpscr = _ReadStatusReg(ARM64_FPSR);
_WriteStatusReg(ARM64_FPCR, fpscr & ~(1U << 24));
#elif defined(__PPC__)
fpu_control_t flags = 0;
_FPU_GETCW(flags);