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WIP: MCST Elbrus initial port #37

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WIP: MCST Elbrus initial port #37

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3138938
Libraries: crunch: abort() for debug on unknown platforms
a1batross Apr 26, 2022
b2ae0e4
Libraries: zstd: disable optimize attribute on MCST LCC compiler
a1batross Apr 26, 2022
3b8c795
Implement reading timestamp for E2K platform
a1batross Apr 26, 2022
dd74e9d
Timing: include E2K-specific asm only on E2K
a1batross Jun 15, 2022
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6 changes: 5 additions & 1 deletion Libraries/crunch-r319/crnlib/crn_platform.h
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Original file line number Diff line number Diff line change
Expand Up @@ -36,7 +36,11 @@ const bool c_crnlib_big_endian_platform = !c_crnlib_little_endian_platform;
#define CRNLIB_BREAKPOINT DebugBreak();
#define CRNLIB_BUILTIN_EXPECT(c, v) c
#elif defined(__GNUC__)
#define CRNLIB_BREAKPOINT asm("int $3");
#if defined(__i386__) || defined(__x86_64__)
#define CRNLIB_BREAKPOINT asm("int $3");
#else
#define CRNLIB_BREAKPOINT abort();
#endif
#define CRNLIB_BUILTIN_EXPECT(c, v) __builtin_expect(c, v)
#else
#define CRNLIB_BREAKPOINT
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2 changes: 1 addition & 1 deletion Libraries/zstd-1.5.0/lib/common/compiler.h
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Expand Up @@ -151,7 +151,7 @@

/* vectorization
* older GCC (pre gcc-4.3 picked as the cutoff) uses a different syntax */
#if !defined(__INTEL_COMPILER) && !defined(__clang__) && defined(__GNUC__)
#if !defined(__INTEL_COMPILER) && !defined(__clang__) && defined(__GNUC__) && !defined(__MCST__)
# if (__GNUC__ == 4 && __GNUC_MINOR__ > 3) || (__GNUC__ >= 5)
# define DONT_VECTORIZE __attribute__((optimize("no-tree-vectorize")))
# else
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9 changes: 8 additions & 1 deletion Source/Timing/timestamp.h
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Expand Up @@ -26,11 +26,18 @@

inline uint64_t GetTimestamp() {
// Use rdtsc instruction to get the tsc or Time Stamp Counter
#if (defined(PLATFORM_LINUX) || defined(PLATFORM_MACOSX)) && (defined(__i386__) || defined(__x86_64__))
#if (defined(PLATFORM_LINUX) || defined(PLATFORM_MACOSX))
#if (defined(__i386__) || defined(__x86_64__))
uint32_t rax, rdx;
asm volatile ( "lfence" ::: "memory" ); //Fence memory load to everything is executed up to this point.
asm volatile ( "rdtsc\n" : "=a" (rax), "=d" (rdx) : : );
return ((uint64_t)rdx << 32) + rax;
#elif defined(__e2k__)
uint64_t clk;
#pragma asm_inline
__asm__ ( "rrd %%clkr, %0" : "=r" (clk));
return clk;
#endif
#elif defined(PLATFORM_WINDOWS) && _MSC_VER >= 1600
unsigned __int64 i;
_ReadBarrier();
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9 changes: 8 additions & 1 deletion Source/Utility/timing.h
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Expand Up @@ -28,11 +28,18 @@

inline uint64_t getCPUTSC() {
// Use rdtsc instruction to get the tsc or Time Stamp Counter
#if (defined(PLATFORM_LINUX) || defined(PLATFORM_MACOSX)) && (defined(__i386__) || defined(__x86_64__))
#if (defined(PLATFORM_LINUX) || defined(PLATFORM_MACOSX))
#if (defined(__i386__) || defined(__x86_64__))
uint32_t rax, rdx;
asm volatile ( "lfence" ::: "memory" ); //Fence memory load to everything is executed up to this point.
asm volatile ( "rdtsc\n" : "=a" (rax), "=d" (rdx) : : );
return ((uint64_t)rdx << 32) + rax;
#elif defined(__e2k__)
uint64_t clk;
#pragma asm_inline
__asm__ ("rrd %%clkr, %0": "=r" (clk));
return clk;
#endif
#elif defined(PLATFORM_WINDOWS) && _MSC_VER >= 1600
unsigned __int64 i;
_ReadBarrier();
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