bool translateSIToFP(const User &U, MachineIRBuilder &MIRBuilder) {
return translateCast(TargetOpcode::G_SITOFP, U, MIRBuilder);
}
- bool translateUnreachable(const User &U, MachineIRBuilder &MIRBuilder);
-
+ bool translateUnreachable(const User &U, MachineIRBuilder &MIRBuilder) {
+ return true;
+ }
bool translateSExt(const User &U, MachineIRBuilder &MIRBuilder) {
return translateCast(TargetOpcode::G_SEXT, U, MIRBuilder);
}
return true;
}
-bool IRTranslator::translateUnreachable(const User &U, MachineIRBuilder &MIRBuilder) {
- if (!MF->getTarget().Options.TrapUnreachable)
- return true;
-
- auto &UI = cast<UnreachableInst>(U);
- // We may be able to ignore unreachable behind a noreturn call.
- if (MF->getTarget().Options.NoTrapAfterNoreturn) {
- const BasicBlock &BB = *UI.getParent();
- if (&UI != &BB.front()) {
- BasicBlock::const_iterator PredI =
- std::prev(BasicBlock::const_iterator(UI));
- if (const CallInst *Call = dyn_cast<CallInst>(&*PredI)) {
- if (Call->doesNotReturn())
- return true;
- }
- }
- }
-
- MIRBuilder.buildIntrinsic(Intrinsic::trap, ArrayRef<Register>(), true);
- return true;
-}
-
bool IRTranslator::translateInsertElement(const User &U,
MachineIRBuilder &MIRBuilder) {
// If it is a <1 x Ty> vector, use the scalar as it is
+++ /dev/null
-; NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
-; RUN: llc -O0 -mtriple=aarch64-apple-ios -global-isel -stop-after=irtranslator %s -o - | FileCheck %s
-
-declare void @llvm.trap()
-
-define void @unreachable() {
- ; CHECK-LABEL: name: unreachable
- ; CHECK: bb.1 (%ir-block.0):
- ; CHECK-NEXT: G_INTRINSIC_W_SIDE_EFFECTS intrinsic(@llvm.trap)
- unreachable
- ret void
-}
-
-declare void @foo() noreturn
-define void @trap_call_noreturn() {
- ; CHECK-LABEL: name: trap_call_noreturn
- ; CHECK: bb.1 (%ir-block.0):
- ; CHECK-NEXT: ADJCALLSTACKDOWN 0, 0, implicit-def $sp, implicit $sp
- ; CHECK-NEXT: BL @foo, csr_darwin_aarch64_aapcs, implicit-def $lr, implicit $sp
- ; CHECK-NEXT: ADJCALLSTACKUP 0, 0, implicit-def $sp, implicit $sp
- call void @foo()
- unreachable
- ret void
-}