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| author | Bob Wilson <bob.wilson@apple.com> | 2012-08-03 23:29:17 +0000 |
|---|---|---|
| committer | Bob Wilson <bob.wilson@apple.com> | 2012-08-03 23:29:17 +0000 |
| commit | 53624a2df557b4a24f2ee98cfce1a69bf83243af (patch) | |
| tree | ce940e202cc56262d4a9c96df2ac551def98d380 /lib/CodeGen/SelectionDAG/SelectionDAGBuilder.h | |
| parent | 6ac8066ae49a5e9910f24e08af0b168210270946 (diff) | |
Refactor and check "onlyReadsMemory" before optimizing builtins.
This patch is mostly just refactoring a bunch of copy-and-pasted code, but
it also adds a check that the call instructions are readnone or readonly.
That check was already present for sin, cos, sqrt, log2, and exp2 calls, but
it was missing for the rest of the builtins being handled in this code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161282 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/SelectionDAG/SelectionDAGBuilder.h')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/SelectionDAGBuilder.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.h b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.h index d0fde6f01d..4090002314 100644 --- a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.h +++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.h @@ -520,6 +520,7 @@ private: void visitPHI(const PHINode &I); void visitCall(const CallInst &I); bool visitMemCmpCall(const CallInst &I); + bool visitUnaryFloatCall(const CallInst &I, unsigned Opcode); void visitAtomicLoad(const LoadInst &I); void visitAtomicStore(const StoreInst &I); |