Mercurial > hg > CbC > CbC_llvm
view compiler-rt/test/tsan/vector_race.cpp @ 266:00f31e85ec16 default tip
Added tag current for changeset 31d058e83c98
author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
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date | Sat, 14 Oct 2023 10:13:55 +0900 |
parents | c4bab56944e8 |
children |
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// RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t 2>&1 | FileCheck %s #include "test.h" __m128i data[20]; __m128i load(__m128i *v) { #if TSAN_VECTORIZE return _mm_load_si128(v); #else return *v; #endif } void store(__m128i *v, __m128i a) { #if TSAN_VECTORIZE _mm_store_si128(v, a); #else *v = a; #endif } void *Thread(void *arg); int main() { barrier_init(&barrier, 2); pthread_t th; pthread_create(&th, NULL, Thread, NULL); barrier_wait(&barrier); print_address("addr0:", 2, &data[0], &data[0]); auto v0 = load(&data[1]); store(&data[0], v0); // CHECK: addr0:[[ADDR0_0:0x[0-9,a-f]+]] [[ADDR0_1:0x[0-9,a-f]+]] // CHECK: WARNING: ThreadSanitizer: data race // CHECK: Write of size 8 at [[ADDR0_0]] by main thread: // CHECK: Previous read of size 8 at [[ADDR0_1]] by thread T1: print_address("addr1:", 2, (char *)&data[2] + 8, (char *)&data[2] + 8); ((volatile unsigned long long *)(&data[2]))[1] = 42; // CHECK: addr1:[[ADDR1_0:0x[0-9,a-f]+]] [[ADDR1_1:0x[0-9,a-f]+]] // CHECK: WARNING: ThreadSanitizer: data race // CHECK: Write of size 8 at [[ADDR1_0]] by main thread: // CHECK: Previous read of size 8 at [[ADDR1_1]] by thread T1: print_address("addr2:", 2, (char *)&data[4] + 15, (char *)&data[4] + 8); ((volatile char *)(&data[4]))[15] = 42; // CHECK: addr2:[[ADDR2_0:0x[0-9,a-f]+]] [[ADDR2_1:0x[0-9,a-f]+]] // CHECK: WARNING: ThreadSanitizer: data race // CHECK: Write of size 1 at [[ADDR2_0]] by main thread: // CHECK: Previous read of size 8 at [[ADDR2_1]] by thread T1: store(&data[12], v0); ((volatile unsigned long long *)(&data[14]))[1] = 42; ((volatile char *)(&data[16]))[15] = 42; barrier_wait(&barrier); pthread_join(th, NULL); return 0; } void *Thread(void *arg) { // Use only even indexes so that compiler does not insert memcpy. auto v0 = load(&data[0]); auto v1 = load(&data[2]); auto v2 = load(&data[4]); store(&data[6], v0); store(&data[8], v1); store(&data[10], v2); barrier_wait(&barrier); barrier_wait(&barrier); print_address("addr3:", 2, &data[12], &data[12]); store(&data[12], v0); // CHECK: addr3:[[ADDR3_0:0x[0-9,a-f]+]] [[ADDR3_1:0x[0-9,a-f]+]] // CHECK: WARNING: ThreadSanitizer: data race // CHECK: Write of size 8 at [[ADDR3_0]] by thread T1: // CHECK: Previous write of size 8 at [[ADDR3_1]] by main thread: print_address("addr4:", 2, (char *)&data[14] + 8, (char *)&data[14] + 8); store(&data[14], v0); // CHECK: addr4:[[ADDR4_0:0x[0-9,a-f]+]] [[ADDR4_1:0x[0-9,a-f]+]] // CHECK: WARNING: ThreadSanitizer: data race // CHECK: Write of size 8 at [[ADDR4_0]] by thread T1: // CHECK: Previous write of size 8 at [[ADDR4_1]] by main thread: print_address("addr5:", 2, (char *)&data[16] + 8, (char *)&data[16] + 15); store(&data[16], v0); // CHECK: addr5:[[ADDR5_0:0x[0-9,a-f]+]] [[ADDR5_1:0x[0-9,a-f]+]] // CHECK: WARNING: ThreadSanitizer: data race // CHECK: Write of size 8 at [[ADDR5_0]] by thread T1: // CHECK: Previous write of size 1 at [[ADDR5_1]] by main thread: return NULL; }