Add implicit null and stack checks for x86
This adds compiler and runtime changes for x86
implicit checks. 32 bit only.
Both host and target are supported.
By default, on the host, the implicit checks are null pointer and
stack overflow. Suspend is implemented but not switched on.
Change-Id: I88a609e98d6bf32f283eaa4e6ec8bbf8dc1df78a
diff --git a/compiler/dex/quick/codegen_util.cc b/compiler/dex/quick/codegen_util.cc
index 5870d22..1ac4707 100644
--- a/compiler/dex/quick/codegen_util.cc
+++ b/compiler/dex/quick/codegen_util.cc
@@ -1162,9 +1162,12 @@
}
LIR *Mir2Lir::OpCmpMemImmBranch(ConditionCode cond, RegStorage temp_reg, RegStorage base_reg,
- int offset, int check_value, LIR* target) {
+ int offset, int check_value, LIR* target, LIR** compare) {
// Handle this for architectures that can't compare to memory.
- Load32Disp(base_reg, offset, temp_reg);
+ LIR* inst = Load32Disp(base_reg, offset, temp_reg);
+ if (compare != nullptr) {
+ *compare = inst;
+ }
LIR* branch = OpCmpImmBranch(cond, temp_reg, check_value, target);
return branch;
}