Hashing: use 64-bit seed for hashing on all platforms.

get_execution_seed returns a size_t which varies across platforms, but its
users actually always feed it into a uint64_t role so it makes sense to be
consistent.

Mostly this is just a tidy-up, but it also apparently allows PCH files to be
shared between Clang compilers built for 32-bit and 64-bit hosts.

llvm-svn: 341113

1 files changed, 2 insertions, 2 deletions

diff --git a/llvm/lib/Support/Hashing.cpp b/llvm/lib/Support/Hashing.cpp
index c69efb7..7de25ce 100644
--- a/llvm/lib/Support/Hashing.cpp
+++ b/llvm/lib/Support/Hashing.cpp
@@ -20,10 +20,10 @@ using namespace llvm;
 // Provide a definition and static initializer for the fixed seed. This
 // initializer should always be zero to ensure its value can never appear to be
 // non-zero, even during dynamic initialization.
-size_t llvm::hashing::detail::fixed_seed_override = 0;
+uint64_t llvm::hashing::detail::fixed_seed_override = 0;
 
 // Implement the function for forced setting of the fixed seed.
 // FIXME: Use atomic operations here so that there is no data race.
-void llvm::set_fixed_execution_hash_seed(size_t fixed_value) {
+void llvm::set_fixed_execution_hash_seed(uint64_t fixed_value) {
   hashing::detail::fixed_seed_override = fixed_value;
 }