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stage1: stop emitting memset to undefined when safety is off

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This commit is contained in:
Andrew Kelley 2020-06-17 06:07:53 -04:00
parent 02f688d710
commit 46b57748a5
1 changed files with 6 additions and 2 deletions
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8
src/codegen.cpp
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@ -5583,8 +5583,12 @@ static LLVMValueRef ir_render_memset(CodeGen *g, IrExecutableGen *executable, Ir
bool val_is_undef = value_is_all_undef(g, instruction->byte->value);
LLVMValueRef fill_char;
if (val_is_undef && ir_want_runtime_safety_scope(g, instruction->base.base.scope)) {
fill_char = LLVMConstInt(LLVMInt8Type(), 0xaa, false);
if (val_is_undef) {
if (ir_want_runtime_safety_scope(g, instruction->base.base.scope)) {
fill_char = LLVMConstInt(LLVMInt8Type(), 0xaa, false);
} else {
return nullptr;
}
} else {
fill_char = ir_llvm_value(g, instruction->byte);
}