commit e711c769749f09eef40b03eb6f6f66631cbac27f
author alan-baker <alanbaker@google.com> Wed May 20 17:56:59 2020 -0400
committer GitHub <noreply@github.com> Wed May 20 17:56:59 2020 -0400
tree 84ea46a47a15f899c59d99f1c37cb5ff6a0113e7
parent 1c32720c4c5b3e0e4c78e97a50f886cb42198e0c

Expand functionality to catch odd truncates (#585)

Fixes #583

* Changes UndoTruncatedSwitchPass to look for truncates to look for
truncates to non-power-of-2 integer sizes instead of switches on odd
sizes
  * rename pass
  * new logic to update instructions that aren't full rewritten
  * handle mixed input sizes for binary ops
  * handle truncate and zero extend better
* new tests

lib/Compiler.cpp

diff --git a/lib/Compiler.cpp b/lib/Compiler.cpp
index 10a14dd..2b95681 100644
--- a/lib/Compiler.cpp
+++ b/lib/Compiler.cpp
@@ -684,7 +684,7 @@
   pm->add(clspv::createFunctionInternalizerPass());
   pm->add(clspv::createReplaceLLVMIntrinsicsPass());
   pm->add(clspv::createUndoBoolPass());
-  pm->add(clspv::createUndoTruncatedSwitchConditionPass());
+  pm->add(clspv::createUndoTruncateToOddIntegerPass());
   pm->add(llvm::createStructurizeCFGPass(false));
   // Must be run after structurize cfg.
   pm->add(clspv::createFixupStructuredCFGPass());