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authorEdward Liu <shiqiu1105@gmail.com>2022-11-14 12:08:01 -0800
committerGitHub <noreply@github.com>2022-11-14 12:08:01 -0800
commit368ec3116ea0f10f44acbf76b5dc9e34d6ff3d32 (patch)
tree3d9def111db278affb8413bddb5aab9ce3cf73a6 /source/slang/slang-ir.cpp
parent623f5c36e0dc8190753aa5fa2e89f1010c367c67 (diff)
Minimum binary arithmetic reverse autodiff working. (#2514)
* Initial plumbing of backward autodiff in the frontend. * More plumbing. * Initial reverse autodiff working. * Bug fixes. * Misc. * Remove redundant code. * More clean up. * Misc. * Rebase and add backward diff test. * Disable test. * Clean up. * Minor fix. Co-authored-by: Yong He <yhe@nvidia.com>
Diffstat (limited to 'source/slang/slang-ir.cpp')
-rw-r--r--source/slang/slang-ir.cpp22
1 files changed, 22 insertions, 0 deletions
diff --git a/source/slang/slang-ir.cpp b/source/slang/slang-ir.cpp
index 9d538a774..6112beaf2 100644
--- a/source/slang/slang-ir.cpp
+++ b/source/slang/slang-ir.cpp
@@ -3109,6 +3109,17 @@ namespace Slang
return inst;
}
+ IRInst* IRBuilder::emitBackwardDifferentiateInst(IRType* type, IRInst* baseFn)
+ {
+ auto inst = createInst<IRBackwardDifferentiate>(
+ this,
+ kIROp_BackwardDifferentiate,
+ type,
+ baseFn);
+ addInst(inst);
+ return inst;
+ }
+
IRInst* IRBuilder::emitMakeDifferentialPair(IRType* type, IRInst* primal, IRInst* differential)
{
IRInst* args[] = {primal, differential};
@@ -4556,6 +4567,17 @@ namespace Slang
return inst;
}
+ IRInst* IRBuilder::emitNeg(IRType* type, IRInst* value)
+ {
+ auto inst = createInst<IRInst>(
+ this,
+ kIROp_Neg,
+ type,
+ value);
+ addInst(inst);
+ return inst;
+ }
+
IRInst* IRBuilder::emitAdd(IRType* type, IRInst* left, IRInst* right)
{
auto inst = createInst<IRInst>(