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Add ISPC_HAS_RAND definition on targets that have a HW RNG.

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This lets us check for a functioning rdrand() call in the stdlib
more reliably.  Fixes issue #333.
This commit is contained in:
Matt Pharr
2012-10-03 09:18:12 -07:00
parent 360cc8044e
commit 411d5b44ef
7 changed files with 8 additions and 6 deletions
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2
module.cpp
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@@ -1788,6 +1788,8 @@ Module::execPreprocessor(const char* infilename, llvm::raw_string_ostream* ostre
if (g->target.hasHalf)
opts.addMacroDef("ISPC_TARGET_HAS_HALF");
if (g->target.hasRand)
opts.addMacroDef("ISPC_TARGET_HAS_RAND");
if (g->target.hasTranscendentals)
opts.addMacroDef("ISPC_TARGET_HAS_TRANSCENDENTALS");
if (g->opt.forceAlignedMemory)