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[cast-opt] Change simplifyCheckedCast{,Value}BranchInst to use SILDynamicCastInst.

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This is the last change needed to simplify the API of optimizeBridgedCasts to
take SILDynamicCastInst.
This commit is contained in:
Michael Gottesman
2019-03-03 16:27:04 -08:00
parent 807b187302
commit e833d11720
2 changed files with 57 additions and 65 deletions
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36
include/swift/SIL/DynamicCasts.h
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@@ -184,9 +184,12 @@ public:
switch (getKind()) {
case SILDynamicCastKind::CheckedCastAddrBranchInst:
return cast<CheckedCastAddrBranchInst>(inst)->getConsumptionKind();
// TODO: Bridged casts cannot be expressed by checked_cast_br or
// checked_cast_value_br yet. Should we ever support it, please
// review this code.
case SILDynamicCastKind::CheckedCastBranchInst:
case SILDynamicCastKind::CheckedCastValueBranchInst:
llvm_unreachable("unsupported");
return CastConsumptionKind::CopyOnSuccess;
case SILDynamicCastKind::UnconditionalCheckedCastAddrInst:
return CastConsumptionKind::TakeAlways;
case SILDynamicCastKind::UnconditionalCheckedCastInst:
@@ -215,7 +218,7 @@ public:
case SILDynamicCastKind::CheckedCastBranchInst:
return cast<CheckedCastBranchInst>(inst)->getSuccessBB();
case SILDynamicCastKind::CheckedCastValueBranchInst:
llvm_unreachable("unsupported");
return cast<CheckedCastValueBranchInst>(inst)->getSuccessBB();
case SILDynamicCastKind::UnconditionalCheckedCastAddrInst:
case SILDynamicCastKind::UnconditionalCheckedCastInst:
return nullptr;
@@ -251,7 +254,7 @@ public:
case SILDynamicCastKind::CheckedCastBranchInst:
return cast<CheckedCastBranchInst>(inst)->getFailureBB();
case SILDynamicCastKind::CheckedCastValueBranchInst:
llvm_unreachable("unsupported");
return cast<CheckedCastValueBranchInst>(inst)->getFailureBB();
case SILDynamicCastKind::UnconditionalCheckedCastAddrInst:
case SILDynamicCastKind::UnconditionalCheckedCastInst:
return nullptr;
@@ -287,7 +290,7 @@ public:
case SILDynamicCastKind::CheckedCastBranchInst:
return cast<CheckedCastBranchInst>(inst)->getOperand();
case SILDynamicCastKind::CheckedCastValueBranchInst:
llvm_unreachable("unsupported");
return cast<CheckedCastValueBranchInst>(inst)->getOperand();
case SILDynamicCastKind::UnconditionalCheckedCastAddrInst:
return cast<UnconditionalCheckedCastAddrInst>(inst)->getSrc();
case SILDynamicCastKind::UnconditionalCheckedCastInst:
@@ -304,7 +307,8 @@ public:
return cast<CheckedCastAddrBranchInst>(inst)->getDest();
case SILDynamicCastKind::CheckedCastBranchInst:
case SILDynamicCastKind::CheckedCastValueBranchInst:
llvm_unreachable("unsupported");
// TODO: Shouldn't this return getSuccessBlock()->getArgument(0)?
return SILValue();
case SILDynamicCastKind::UnconditionalCheckedCastAddrInst:
return cast<UnconditionalCheckedCastAddrInst>(inst)->getDest();
case SILDynamicCastKind::UnconditionalCheckedCastInst:
@@ -322,8 +326,9 @@ public:
case SILDynamicCastKind::CheckedCastAddrBranchInst:
return cast<CheckedCastAddrBranchInst>(inst)->getSourceType();
case SILDynamicCastKind::CheckedCastBranchInst:
return cast<CheckedCastBranchInst>(inst)->getSourceType();
case SILDynamicCastKind::CheckedCastValueBranchInst:
llvm_unreachable("unsupported");
return cast<CheckedCastValueBranchInst>(inst)->getSourceType();
case SILDynamicCastKind::UnconditionalCheckedCastAddrInst:
return cast<UnconditionalCheckedCastAddrInst>(inst)->getSourceType();
case SILDynamicCastKind::UnconditionalCheckedCastInst:
@@ -355,8 +360,9 @@ public:
case SILDynamicCastKind::CheckedCastAddrBranchInst:
return cast<CheckedCastAddrBranchInst>(inst)->getTargetType();
case SILDynamicCastKind::CheckedCastBranchInst:
return cast<CheckedCastBranchInst>(inst)->getTargetType();
case SILDynamicCastKind::CheckedCastValueBranchInst:
llvm_unreachable("unsupported");
return cast<CheckedCastValueBranchInst>(inst)->getTargetType();
case SILDynamicCastKind::UnconditionalCheckedCastAddrInst:
return cast<UnconditionalCheckedCastAddrInst>(inst)->getTargetType();
case SILDynamicCastKind::UnconditionalCheckedCastInst:
@@ -373,7 +379,7 @@ public:
case SILDynamicCastKind::CheckedCastBranchInst:
return cast<CheckedCastBranchInst>(inst)->getCastType();
case SILDynamicCastKind::CheckedCastValueBranchInst:
llvm_unreachable("unsupported");
return cast<CheckedCastValueBranchInst>(inst)->getCastType();
case SILDynamicCastKind::UnconditionalCheckedCastAddrInst: {
auto *uccai = dyn_cast<UnconditionalCheckedCastAddrInst>(inst);
return uccai->getDest()->getType();
@@ -388,9 +394,8 @@ public:
bool isSourceTypeExact() const {
switch (getKind()) {
case SILDynamicCastKind::CheckedCastBranchInst:
case SILDynamicCastKind::CheckedCastValueBranchInst:
llvm_unreachable("unsupported");
case SILDynamicCastKind::CheckedCastBranchInst:
case SILDynamicCastKind::CheckedCastAddrBranchInst:
case SILDynamicCastKind::UnconditionalCheckedCastAddrInst:
case SILDynamicCastKind::UnconditionalCheckedCastInst:
@@ -421,13 +426,18 @@ public:
bool isConditional() const {
switch (getKind()) {
case SILDynamicCastKind::CheckedCastBranchInst:
case SILDynamicCastKind::CheckedCastValueBranchInst:
llvm_unreachable("unsupported");
case SILDynamicCastKind::CheckedCastAddrBranchInst: {
auto f = classifyFeasibility(true /*allow wmo*/);
return f == DynamicCastFeasibility::MaySucceed;
}
case SILDynamicCastKind::CheckedCastBranchInst: {
auto f = classifyFeasibility(false /*allow wmo*/);
return f == DynamicCastFeasibility::MaySucceed;
}
case SILDynamicCastKind::CheckedCastValueBranchInst: {
auto f = classifyFeasibility(false /*allow wmo opts*/);
return f == DynamicCastFeasibility::MaySucceed;
}
case SILDynamicCastKind::UnconditionalCheckedCastAddrInst:
case SILDynamicCastKind::UnconditionalCheckedCastInst:
return false;