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[opaque pointer type] More GEP API migrations

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@234108 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
David Blaikie
2015-04-04 21:07:10 +00:00
parent 166e26c295
commit 0a63904a98
3 changed files with 34 additions and 24 deletions
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43
lib/CodeGen/SjLjEHPrepare.cpp
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@ -46,6 +46,8 @@ STATISTIC(NumSpilled, "Number of registers live across unwind edges");
namespace {
class SjLjEHPrepare : public FunctionPass {
const TargetMachine *TM;
Type *doubleUnderDataTy;
Type *doubleUnderJBufTy;
Type *FunctionContextTy;
Constant *RegisterFn;
Constant *UnregisterFn;
@ -93,12 +95,14 @@ bool SjLjEHPrepare::doInitialization(Module &M) {
// builtin_setjmp uses a five word jbuf
Type *VoidPtrTy = Type::getInt8PtrTy(M.getContext());
Type *Int32Ty = Type::getInt32Ty(M.getContext());
FunctionContextTy = StructType::get(VoidPtrTy, // __prev
Int32Ty, // call_site
ArrayType::get(Int32Ty, 4), // __data
VoidPtrTy, // __personality
VoidPtrTy, // __lsda
ArrayType::get(VoidPtrTy, 5), // __jbuf
doubleUnderDataTy = ArrayType::get(Int32Ty, 4);
doubleUnderJBufTy = ArrayType::get(VoidPtrTy, 5);
FunctionContextTy = StructType::get(VoidPtrTy, // __prev
Int32Ty, // call_site
doubleUnderDataTy, // __data
VoidPtrTy, // __personality
VoidPtrTy, // __lsda
doubleUnderJBufTy, // __jbuf
nullptr);
RegisterFn = M.getOrInsertFunction(
"_Unwind_SjLj_Register", Type::getVoidTy(M.getContext()),
@ -204,16 +208,17 @@ Value *SjLjEHPrepare::setupFunctionContext(Function &F,
IRBuilder<> Builder(LPI->getParent()->getFirstInsertionPt());
// Reference the __data field.
Value *FCData = Builder.CreateConstGEP2_32(FuncCtx, 0, 2, "__data");
Value *FCData =
Builder.CreateConstGEP2_32(FunctionContextTy, FuncCtx, 0, 2, "__data");
// The exception values come back in context->__data[0].
Value *ExceptionAddr =
Builder.CreateConstGEP2_32(FCData, 0, 0, "exception_gep");
Value *ExceptionAddr = Builder.CreateConstGEP2_32(doubleUnderDataTy, FCData,
0, 0, "exception_gep");
Value *ExnVal = Builder.CreateLoad(ExceptionAddr, true, "exn_val");
ExnVal = Builder.CreateIntToPtr(ExnVal, Builder.getInt8PtrTy());
Value *SelectorAddr =
Builder.CreateConstGEP2_32(FCData, 0, 1, "exn_selector_gep");
Value *SelectorAddr = Builder.CreateConstGEP2_32(doubleUnderDataTy, FCData,
0, 1, "exn_selector_gep");
Value *SelVal = Builder.CreateLoad(SelectorAddr, true, "exn_selector_val");
substituteLPadValues(LPI, ExnVal, SelVal);
@ -223,15 +228,16 @@ Value *SjLjEHPrepare::setupFunctionContext(Function &F,
IRBuilder<> Builder(EntryBB->getTerminator());
if (!PersonalityFn)
PersonalityFn = LPads[0]->getPersonalityFn();
Value *PersonalityFieldPtr =
Builder.CreateConstGEP2_32(FuncCtx, 0, 3, "pers_fn_gep");
Value *PersonalityFieldPtr = Builder.CreateConstGEP2_32(
FunctionContextTy, FuncCtx, 0, 3, "pers_fn_gep");
Builder.CreateStore(
Builder.CreateBitCast(PersonalityFn, Builder.getInt8PtrTy()),
PersonalityFieldPtr, /*isVolatile=*/true);
// LSDA address
Value *LSDA = Builder.CreateCall(LSDAAddrFn, "lsda_addr");
Value *LSDAFieldPtr = Builder.CreateConstGEP2_32(FuncCtx, 0, 4, "lsda_gep");
Value *LSDAFieldPtr =
Builder.CreateConstGEP2_32(FunctionContextTy, FuncCtx, 0, 4, "lsda_gep");
Builder.CreateStore(LSDA, LSDAFieldPtr, /*isVolatile=*/true);
return FuncCtx;
@ -400,16 +406,19 @@ bool SjLjEHPrepare::setupEntryBlockAndCallSites(Function &F) {
IRBuilder<> Builder(EntryBB->getTerminator());
// Get a reference to the jump buffer.
Value *JBufPtr = Builder.CreateConstGEP2_32(FuncCtx, 0, 5, "jbuf_gep");
Value *JBufPtr =
Builder.CreateConstGEP2_32(FunctionContextTy, FuncCtx, 0, 5, "jbuf_gep");
// Save the frame pointer.
Value *FramePtr = Builder.CreateConstGEP2_32(JBufPtr, 0, 0, "jbuf_fp_gep");
Value *FramePtr = Builder.CreateConstGEP2_32(doubleUnderJBufTy, JBufPtr, 0, 0,
"jbuf_fp_gep");
Value *Val = Builder.CreateCall(FrameAddrFn, Builder.getInt32(0), "fp");
Builder.CreateStore(Val, FramePtr, /*isVolatile=*/true);
// Save the stack pointer.
Value *StackPtr = Builder.CreateConstGEP2_32(JBufPtr, 0, 2, "jbuf_sp_gep");
Value *StackPtr = Builder.CreateConstGEP2_32(doubleUnderJBufTy, JBufPtr, 0, 2,
"jbuf_sp_gep");
Val = Builder.CreateCall(StackAddrFn, "sp");
Builder.CreateStore(Val, StackPtr, /*isVolatile=*/true);