Fix build warnings
The following CL enables -Werror:
https://codereview.chromium.org/863093002/
There were two warnings left in our subzero build:
- Dead default cases because all of an enum's values were handled by the switch.
- Use of C99 VLA.
R=stichnot@chromium.org
TEST= make check
BUG= none
Review URL: https://codereview.chromium.org/862853003
diff --git a/src/IceCfgNode.cpp b/src/IceCfgNode.cpp
index 4a970ae..29eb9d0 100644
--- a/src/IceCfgNode.cpp
+++ b/src/IceCfgNode.cpp
@@ -304,14 +304,15 @@
return;
// Count the number of non-deleted Phi instructions.
- struct {
+ struct PhiDesc {
InstPhi *Phi;
Variable *Dest;
Operand *Src;
bool Processed;
size_t NumPred; // number of entries whose Src is this Dest
int32_t Weight; // preference for topological order
- } Desc[getPhis().size()];
+ };
+ llvm::SmallVector<PhiDesc, 32> Desc(getPhis().size());
size_t NumPhis = 0;
for (Inst &I : Phis) {
