Sort allocas, compute frame pointer in Cfg pass
Split allocas in the entry block into two categories. The first has alignment <= stack alignment and constant size. The second violates one or both of those conditions. Sort both of these lists in descending alignment order and emit. Also, compute the need for a frame pointer during the pass.
BUG=
R=jpp@chromium.org, stichnot@chromium.org
Review URL: https://codereview.chromium.org/1414343010 .
diff --git a/src/IceTargetLoweringARM32.cpp b/src/IceTargetLoweringARM32.cpp
index 0761f02..31ef0c0 100644
--- a/src/IceTargetLoweringARM32.cpp
+++ b/src/IceTargetLoweringARM32.cpp
@@ -380,6 +380,10 @@
}
}
+uint32_t TargetARM32::getStackAlignment() const {
+ return ARM32_STACK_ALIGNMENT_BYTES;
+}
+
bool TargetARM32::doBranchOpt(Inst *I, const CfgNode *NextNode) {
if (InstARM32Br *Br = llvm::dyn_cast<InstARM32Br>(I)) {
return Br->optimizeBranch(NextNode);
