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HP PA-RISC architecture initial build support #121220

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ff239db
Cmake: Allow build on HP PA-RISC host machine
Dec 20, 2024
4c2413d
Add clock counter for hppa architecture
Dec 20, 2024
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4 changes: 4 additions & 0 deletions llvm/cmake/config-ix.cmake
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Original file line number Diff line number Diff line change
Expand Up @@ -512,6 +512,10 @@ elseif (LLVM_NATIVE_ARCH STREQUAL "m68k")
set(LLVM_NATIVE_ARCH M68k)
elseif (LLVM_NATIVE_ARCH MATCHES "loongarch")
set(LLVM_NATIVE_ARCH LoongArch)
elseif (LLVM_NATIVE_ARCH MATCHES "hppa1.1")
set(LLVM_NATIVE_ARCH HPPA)
elseif (LLVM_NATIVE_ARCH MATCHES "hppa64")
set(LLVM_NATIVE_ARCH HPPA)
else ()
message(FATAL_ERROR "Unknown architecture ${LLVM_NATIVE_ARCH}")
endif ()
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10 changes: 10 additions & 0 deletions third-party/benchmark/src/cycleclock.h
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Expand Up @@ -228,6 +228,16 @@ inline BENCHMARK_ALWAYS_INLINE int64_t Now() {
struct timeval tv;
gettimeofday(&tv, nullptr);
return static_cast<int64_t>(tv.tv_sec) * 1000000 + tv.tv_usec;
#elif defined(__hppa__)
// HP PA-RISC provides a user-readable clock counter (cr16), but
// it's not syncronized across CPUs and only 32-bit wide when programs
// are built as 32-bit binaries.
// Use clock_gettime(CLOCK_MONOTONIC, ...) instead of gettimeofday
// because is provides nanosecond resolution.
// Initialize to always return 0 if clock_gettime fails.
struct timespec ts = {0, 0};
clock_gettime(CLOCK_MONOTONIC, &ts);
return static_cast<int64_t>(ts.tv_sec) * 1000000000 + ts.tv_nsec;
#else
// The soft failover to a generic implementation is automatic only for ARM.
// For other platforms the developer is expected to make an attempt to create
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