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authorChandler Carruth <chandlerc@gmail.com>2013-01-02 09:10:48 +0000
committerChandler Carruth <chandlerc@gmail.com>2013-01-02 09:10:48 +0000
commitef860a2488c955147659c6804b56337190346be4 (patch)
tree90e5412398520cac5042e934e8e0882a1d3c6d18 /llvm/lib/IR/IntrinsicInst.cpp
parent22bcf8a8eb12864fef50624c2fa62bc1bb354a0d (diff)
downloadbcm5719-llvm-ef860a2488c955147659c6804b56337190346be4.tar.gz
bcm5719-llvm-ef860a2488c955147659c6804b56337190346be4.zip
Rename VMCore directory to IR.
Aside from moving the actual files, this patch only updates the build system and the source file comments under lib/... that are relevant. I'll be updating other docs and other files in smaller subsequnet commits. While I've tried to test this, but it is entirely possible that there will still be some build system fallout. Also, note that I've not changed the library name itself: libLLVMCore.a is still the library name. I'd be interested in others' opinions about whether we should rename this as well (I think we should, just not sure what it might break) llvm-svn: 171359
Diffstat (limited to 'llvm/lib/IR/IntrinsicInst.cpp')
-rw-r--r--llvm/lib/IR/IntrinsicInst.cpp73
1 files changed, 73 insertions, 0 deletions
diff --git a/llvm/lib/IR/IntrinsicInst.cpp b/llvm/lib/IR/IntrinsicInst.cpp
new file mode 100644
index 00000000000..ac8ec2086b1
--- /dev/null
+++ b/llvm/lib/IR/IntrinsicInst.cpp
@@ -0,0 +1,73 @@
+//===-- InstrinsicInst.cpp - Intrinsic Instruction Wrappers -----*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements methods that make it really easy to deal with intrinsic
+// functions.
+//
+// All intrinsic function calls are instances of the call instruction, so these
+// are all subclasses of the CallInst class. Note that none of these classes
+// has state or virtual methods, which is an important part of this gross/neat
+// hack working.
+//
+// In some cases, arguments to intrinsics need to be generic and are defined as
+// type pointer to empty struct { }*. To access the real item of interest the
+// cast instruction needs to be stripped away.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/IntrinsicInst.h"
+#include "llvm/Constants.h"
+#include "llvm/GlobalVariable.h"
+#include "llvm/Metadata.h"
+using namespace llvm;
+
+//===----------------------------------------------------------------------===//
+/// DbgInfoIntrinsic - This is the common base class for debug info intrinsics
+///
+
+static Value *CastOperand(Value *C) {
+ if (ConstantExpr *CE = dyn_cast<ConstantExpr>(C))
+ if (CE->isCast())
+ return CE->getOperand(0);
+ return NULL;
+}
+
+Value *DbgInfoIntrinsic::StripCast(Value *C) {
+ if (Value *CO = CastOperand(C)) {
+ C = StripCast(CO);
+ } else if (GlobalVariable *GV = dyn_cast<GlobalVariable>(C)) {
+ if (GV->hasInitializer())
+ if (Value *CO = CastOperand(GV->getInitializer()))
+ C = StripCast(CO);
+ }
+ return dyn_cast<GlobalVariable>(C);
+}
+
+//===----------------------------------------------------------------------===//
+/// DbgDeclareInst - This represents the llvm.dbg.declare instruction.
+///
+
+Value *DbgDeclareInst::getAddress() const {
+ if (MDNode* MD = cast_or_null<MDNode>(getArgOperand(0)))
+ return MD->getOperand(0);
+ else
+ return NULL;
+}
+
+//===----------------------------------------------------------------------===//
+/// DbgValueInst - This represents the llvm.dbg.value instruction.
+///
+
+const Value *DbgValueInst::getValue() const {
+ return cast<MDNode>(getArgOperand(0))->getOperand(0);
+}
+
+Value *DbgValueInst::getValue() {
+ return cast<MDNode>(getArgOperand(0))->getOperand(0);
+}
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