diff options
Diffstat (limited to 'source/slang')
| -rw-r--r-- | source/slang/slang-emit.cpp | 6 | ||||
| -rw-r--r-- | source/slang/slang-ir-specialize-buffer-load-arg.cpp | 2 |
2 files changed, 7 insertions, 1 deletions
diff --git a/source/slang/slang-emit.cpp b/source/slang/slang-emit.cpp index 804a44b81..7d72fb77f 100644 --- a/source/slang/slang-emit.cpp +++ b/source/slang/slang-emit.cpp @@ -1402,6 +1402,12 @@ Result linkAndOptimizeIR( // function parameters, reults, etc. is invalid. // We clean up the usages of resource values here. specializeResourceUsage(codeGenContext, irModule); + + // Specialize calls to functions with values loaded from an immutable location, + // so that we directly load the value inside the callee, instead of loading the + // value outside of the callee and copy it in. This is necessary to avoid copying + // large values (e.g. arrays) in registers, where most of the elements are not + // actually used. specializeFuncsForBufferLoadArgs(codeGenContext, irModule); // Push `structuredBufferLoad` to the end of access chain to avoid loading unnecessary data. diff --git a/source/slang/slang-ir-specialize-buffer-load-arg.cpp b/source/slang/slang-ir-specialize-buffer-load-arg.cpp index a5a3dd2d9..c473c6047 100644 --- a/source/slang/slang-ir-specialize-buffer-load-arg.cpp +++ b/source/slang/slang-ir-specialize-buffer-load-arg.cpp @@ -89,7 +89,7 @@ struct FuncBufferLoadSpecializationCondition : FunctionCallSpecializeCondition a = argLoad->getPtr(); // We can safely defer a load to the callee if the source dest is immutable. - if (isPointerToImmutableLocation(a)) + if (isPointerToImmutableLocation(getRootAddr(a))) continue; // Otherwise, we check if there is no other instructions in between the load and the |