projects / oota-llvm.git / commit
? search:
summary | shortlog | log | commit | commitdiff | tree
(parent: 60e32b0) | patch
Generalize (zext (truncate x)) and (sext (truncate x)) folding to work when
authorChris Lattner <sabre@nondot.org>
Thu, 21 Sep 2006 06:00:20 +0000 (06:00 +0000)
committerChris Lattner <sabre@nondot.org>
Thu, 21 Sep 2006 06:00:20 +0000 (06:00 +0000)
commit6007b84a5bdcba9ee012418fedd32c236aad2cf6
tree377a0ed2999b14e140b80ccb1b1edc03ca8021a3tree | snapshot
parent60e32b07768631ef3e2af4811dee39951ae633c8commit | diff
Generalize (zext (truncate x)) and (sext (truncate x)) folding to work when
the src/dst are not the same size.  This catches things like "truncate
32-bit X to 8 bits, then zext to 16", which happens a bit on X86.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30557 91177308-0d34-0410-b5e6-96231b3b80d8
lib/CodeGen/SelectionDAG/DAGCombiner.cpp diff | blob | history
C/C++ LLVM-based compilers that forbids OOTA behaviors