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Add missing instruction to pass

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This commit is contained in:
gingerBill
2021-05-15 22:14:20 +01:00
parent fffb83282b
commit b1cfeb6c95
1 changed files with 6 additions and 0 deletions
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6
src/llvm_backend_opt.cpp
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@@ -253,6 +253,7 @@ void lb_run_remove_dead_instruction_pass(lbProcedure *p) {
isize removal_count = 0;
isize pass_count = 0;
isize const max_pass_count = 10;
isize original_instruction_count = 0;
// Custom remove dead instruction pass
for (; pass_count < max_pass_count; pass_count++) {
bool was_dead_instructions = false;
@@ -267,6 +268,10 @@ void lb_run_remove_dead_instruction_pass(lbProcedure *p) {
for (LLVMValueRef instr = LLVMGetLastInstruction(block);
instr != nullptr;
/**/) {
if (pass_count == 0) {
original_instruction_count += 1;
}
LLVMValueRef curr_instr = instr;
instr = LLVMGetPreviousInstruction(instr);
@@ -280,6 +285,7 @@ void lb_run_remove_dead_instruction_pass(lbProcedure *p) {
// NOTE(bill): Explicit instructions are set here because some instructions could have side effects
switch (LLVMGetInstructionOpcode(curr_instr)) {
case LLVMFNeg:
case LLVMAdd:
case LLVMFAdd:
case LLVMSub: