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authorYong He <yonghe@outlook.com>2025-07-01 19:09:29 -0700
committerGitHub <noreply@github.com>2025-07-02 02:09:29 +0000
commitc701ec00ccce6dfa8094d6550ce2db929fc8cefe (patch)
tree4f729e8fa5700b2d6d7d99f34514682e3ad351f8 /source/slang/slang-ir-specialize-function-call.cpp
parent83c72fd8772d312233f4e3ccd4154b81030d4795 (diff)
Defer immutable buffer loads when emitting spirv. (#7579)
* Defer immutable buffer loads when emitting spirv. * Fix. * Fix. * Fix. * Fix tests. * Fix test.
Diffstat (limited to 'source/slang/slang-ir-specialize-function-call.cpp')
-rw-r--r--source/slang/slang-ir-specialize-function-call.cpp12
1 files changed, 11 insertions, 1 deletions
diff --git a/source/slang/slang-ir-specialize-function-call.cpp b/source/slang/slang-ir-specialize-function-call.cpp
index 7a9fc5f6f..c03e644de 100644
--- a/source/slang/slang-ir-specialize-function-call.cpp
+++ b/source/slang/slang-ir-specialize-function-call.cpp
@@ -338,7 +338,9 @@ struct FunctionParameterSpecializationContext
// correctly check the preconditions.
//
auto oldFunc = as<IRFunc>(oldCall->getCallee());
- SLANG_ASSERT(oldFunc);
+ if (!oldFunc)
+ return;
+
SLANG_ASSERT(oldFunc->isDefinition());
// Our first information-gathering pass will
@@ -390,6 +392,14 @@ struct FunctionParameterSpecializationContext
newCall->insertBefore(oldCall);
oldCall->replaceUsesWith(newCall);
oldCall->removeAndDeallocate();
+
+ // If old func is no longer used after the specialization,
+ // remove it.
+ if (!oldFunc->hasUses())
+ {
+ if (!shouldInstBeLiveIfParentIsLive(oldFunc, IRDeadCodeEliminationOptions{}))
+ oldFunc->removeAndDeallocate();
+ }
}
// Before diving into the details on how we gather information