getStringHash on string literals (#1140)

* WIP getStringHash

* Have a use.

* Add slang-string-hash.h/.cpp

* Use StringSlicePool for holding strings for StringHash.
Add outputBuffer to string-literal-hash.slang so value can be tested.
Ignore the GlobalHashedStringLiterals instruction on emit.

* Add all the hashed string literals to ProgramLayout.

* Add reflection support for hashed string literals to reflection test.

* Fix string literal hash test.

* Small fixes to pass test suite.

* Fix issue in serialization where IRUse is not correctly initialized.

* Fix problem initializing IRUse for string hash pass.
Remove hack from slang-ir-specialize - specially handling if user is not null.

* * Use shared builder when replacing getStringHash
* Comments for functions in slang-ir-string-hash
* Do not allow zero length string literals. Could be allowed, but doing so would require StringSlicePool to have a special case (or some other mechanism)

1 files changed, 4 insertions, 2 deletions

diff --git a/source/slang/slang-ir-serialize.cpp b/source/slang/slang-ir-serialize.cpp
index fe997cca8..a6ed35cc6 100644
--- a/source/slang/slang-ir-serialize.cpp
+++ b/source/slang/slang-ir-serialize.cpp
@@ -1222,10 +1222,12 @@ static int _calcFixSourceLoc(const IRSerialData::DebugSourceInfo& info, SourceVi
         {
             const Ser::InstIndex* srcOperandIndices;
             const int numOperands = data.getOperands(srcInst, &srcOperandIndices);
-                         
+
+            auto dstOperands = dstInst->getOperands();
+
             for (int j = 0; j < numOperands; j++)
             {
-                dstInst->setOperand(j, insts[int(srcOperandIndices[j])]);
+                dstOperands[j].init(dstInst, insts[int(srcOperandIndices[j])]);
             }
         }
     }