SPV: Use OpBitcast to implement 4 pack/unpack built-in functions.

diff --git a/SPIRV/GlslangToSpv.cpp b/SPIRV/GlslangToSpv.cpp
index c559142..788dd63 100755 (executable)
--- a/SPIRV/GlslangToSpv.cpp
+++ b/SPIRV/GlslangToSpv.cpp
@@ -3504,8 +3504,7 @@ spv::Id TGlslangToSpvTraverser::createUnaryOperation(glslang::TOperator op, spv:
     case glslang::EOpUnpackInt2x32:
     case glslang::EOpPackUint2x32:
     case glslang::EOpUnpackUint2x32:
-        logger->missingFunctionality("shader int64");
-        libCall = spv::GLSLstd450Bad; // TODO: This is a placeholder.
+        unaryOp = spv::OpBitcast;
         break;
 
     case glslang::EOpDPdx:

diff --git a/Test/baseResults/spv.int64.frag.out b/Test/baseResults/spv.int64.frag.out
index b7d8ce9..1c89c03 100644 (file)
--- a/Test/baseResults/spv.int64.frag.out
+++ b/Test/baseResults/spv.int64.frag.out
@@ -5,7 +5,6 @@ Warning, version 450 is not yet complete; most version-specific features are pre
 Linked fragment stage:
 
 
-Missing functionality: shader int64
 // Module Version 10000
 // Generated by (magic number): 80001
 // Id's are bound by 478
@@ -568,15 +567,15 @@ Missing functionality: shader int64
              376:  130(ivec3) Load 289(u64v)
              377:  361(fvec3) Bitcast 376
                               Store 363(dv) 377
-             381:     14(int) ExtInst 1(GLSL.std.450) 0(Unknown) 380
+             381:     14(int) Bitcast 380
                               Store 279(i64) 381
              383:     14(int) Load 279(i64)
-             384:   72(ivec2) ExtInst 1(GLSL.std.450) 0(Unknown) 383
+             384:   72(ivec2) Bitcast 383
                               Store 382(iv) 384
-             386:     36(int) ExtInst 1(GLSL.std.450) 0(Unknown) 385
+             386:     36(int) Bitcast 385
                               Store 291(u64) 386
              388:     36(int) Load 291(u64)
-             389:   79(ivec2) ExtInst 1(GLSL.std.450) 0(Unknown) 388
+             389:   79(ivec2) Bitcast 388
                               Store 387(uv) 389
              392:  130(ivec3) Load 289(u64v)
              393:     36(int) Load 291(u64)