diff options
Diffstat (limited to 'src/pkg/runtime/runtime.c')
| -rw-r--r-- | src/pkg/runtime/runtime.c | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/src/pkg/runtime/runtime.c b/src/pkg/runtime/runtime.c index f59a3f4e80..f0571f1899 100644 --- a/src/pkg/runtime/runtime.c +++ b/src/pkg/runtime/runtime.c @@ -157,11 +157,12 @@ TestAtomic64(void) z64 = 42; x64 = 0; PREFETCH(&z64); - if(runtime·cas64(&z64, &x64, 1)) + if(runtime·cas64(&z64, x64, 1)) runtime·throw("cas64 failed"); - if(x64 != 42) + if(x64 != 0) runtime·throw("cas64 failed"); - if(!runtime·cas64(&z64, &x64, 1)) + x64 = 42; + if(!runtime·cas64(&z64, x64, 1)) runtime·throw("cas64 failed"); if(x64 != 42 || z64 != 1) runtime·throw("cas64 failed"); @@ -193,7 +194,7 @@ runtime·check(void) uint64 h; float32 i, i1; float64 j, j1; - void* k; + byte *k, *k1; uint16* l; struct x1 { byte x; @@ -232,6 +233,17 @@ runtime·check(void) if(z != 4) runtime·throw("cas4"); + k = (byte*)0xfedcb123; + if(sizeof(void*) == 8) + k = (byte*)((uintptr)k<<10); + if(runtime·casp((void**)&k, nil, nil)) + runtime·throw("casp1"); + k1 = k+1; + if(!runtime·casp((void**)&k, k, k1)) + runtime·throw("casp2"); + if(k != k1) + runtime·throw("casp3"); + *(uint64*)&j = ~0ULL; if(j == j) runtime·throw("float64nan"); |