summaryrefslogtreecommitdiff
path: root/lib/Transforms/TransformInternals.cpp
diff options
context:
space:
mode:
authorReid Spencer <rspencer@reidspencer.com>2007-02-03 23:15:56 +0000
committerReid Spencer <rspencer@reidspencer.com>2007-02-03 23:15:56 +0000
commit7ba98a90008727e2fa0dfc1787cad71e1b6021eb (patch)
tree3771eb020732050a9fb5db800b223bb96ff15afd /lib/Transforms/TransformInternals.cpp
parenta49fd07ec6a8a667d9f666ef3560d5d1a64bcc12 (diff)
downloadllvm-7ba98a90008727e2fa0dfc1787cad71e1b6021eb.tar.gz
llvm-7ba98a90008727e2fa0dfc1787cad71e1b6021eb.tar.bz2
llvm-7ba98a90008727e2fa0dfc1787cad71e1b6021eb.tar.xz
For PR1072:
Removing -raise has neglible positive or negative side effects so we are opting to remove it. See the PR for comparison details. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33844 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms/TransformInternals.cpp')
-rw-r--r--lib/Transforms/TransformInternals.cpp92
1 files changed, 0 insertions, 92 deletions
diff --git a/lib/Transforms/TransformInternals.cpp b/lib/Transforms/TransformInternals.cpp
deleted file mode 100644
index a4b3609942..0000000000
--- a/lib/Transforms/TransformInternals.cpp
+++ /dev/null
@@ -1,92 +0,0 @@
-//===- TransformInternals.cpp - Implement shared functions for transforms -===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file was developed by the LLVM research group and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file defines shared functions used by the different components of the
-// Transforms library.
-//
-//===----------------------------------------------------------------------===//
-
-#include "TransformInternals.h"
-#include "llvm/Type.h"
-#include "llvm/Function.h"
-#include "llvm/Instructions.h"
-using namespace llvm;
-
-static const Type *getStructOffsetStep(const StructType *STy, uint64_t &Offset,
- std::vector<Value*> &Indices,
- const TargetData &TD) {
- assert(Offset < TD.getTypeSize(STy) && "Offset not in composite!");
- const StructLayout *SL = TD.getStructLayout(STy);
-
- // This loop terminates always on a 0 <= i < MemberOffsets.size()
- unsigned i;
- for (i = 0; i < SL->MemberOffsets.size()-1; ++i)
- if (Offset >= SL->MemberOffsets[i] && Offset < SL->MemberOffsets[i+1])
- break;
-
- assert(Offset >= SL->MemberOffsets[i] &&
- (i == SL->MemberOffsets.size()-1 || Offset < SL->MemberOffsets[i+1]));
-
- // Make sure to save the current index...
- Indices.push_back(ConstantInt::get(Type::Int32Ty, i));
- Offset = SL->MemberOffsets[i];
- return STy->getContainedType(i);
-}
-
-
-// getStructOffsetType - Return a vector of offsets that are to be used to index
-// into the specified struct type to get as close as possible to index as we
-// can. Note that it is possible that we cannot get exactly to Offset, in which
-// case we update offset to be the offset we actually obtained. The resultant
-// leaf type is returned.
-//
-// If StopEarly is set to true (the default), the first object with the
-// specified type is returned, even if it is a struct type itself. In this
-// case, this routine will not drill down to the leaf type. Set StopEarly to
-// false if you want a leaf
-//
-const Type *llvm::getStructOffsetType(const Type *Ty, unsigned &Offset,
- std::vector<Value*> &Indices,
- const TargetData &TD, bool StopEarly) {
- if (Offset == 0 && StopEarly && !Indices.empty())
- return Ty; // Return the leaf type
-
- uint64_t ThisOffset;
- const Type *NextType;
- if (const StructType *STy = dyn_cast<StructType>(Ty)) {
- if (STy->getNumElements()) {
- Offset = 0;
- return STy;
- }
-
- ThisOffset = Offset;
- NextType = getStructOffsetStep(STy, ThisOffset, Indices, TD);
- } else if (const ArrayType *ATy = dyn_cast<ArrayType>(Ty)) {
- assert(Offset == 0 || Offset < TD.getTypeSize(ATy) &&
- "Offset not in composite!");
-
- NextType = ATy->getElementType();
- unsigned ChildSize = (unsigned)TD.getTypeSize(NextType);
- if (ConstantInt::isValueValidForType(Type::Int32Ty,
- uint64_t(Offset/ChildSize)))
- Indices.push_back(ConstantInt::get(Type::Int32Ty, Offset/ChildSize));
- else
- Indices.push_back(ConstantInt::get(Type::Int64Ty, Offset/ChildSize));
- ThisOffset = (Offset/ChildSize)*ChildSize;
- } else {
- Offset = 0; // Return the offset that we were able to achieve
- return Ty; // Return the leaf type
- }
-
- unsigned SubOffs = unsigned(Offset - ThisOffset);
- const Type *LeafTy = getStructOffsetType(NextType, SubOffs,
- Indices, TD, StopEarly);
- Offset = unsigned(ThisOffset + SubOffs);
- return LeafTy;
-}