From 1fc08f5e9ef733ef1ce6f363fecedc2260e78974 Mon Sep 17 00:00:00 2001
From: dim <dim@FreeBSD.org>
Date: Sat, 14 Apr 2012 13:54:10 +0000
Subject: Vendor import of llvm trunk r154661:
http://llvm.org/svn/llvm-project/llvm/trunk@r154661
---
include/llvm/CodeGen/MachineFunction.h | 35 +++++++++++++++++++++-------------
1 file changed, 22 insertions(+), 13 deletions(-)
(limited to 'include/llvm/CodeGen/MachineFunction.h')
diff --git a/include/llvm/CodeGen/MachineFunction.h b/include/llvm/CodeGen/MachineFunction.h
index 6e08f7b..dda2dc7 100644
--- a/include/llvm/CodeGen/MachineFunction.h
+++ b/include/llvm/CodeGen/MachineFunction.h
@@ -120,10 +120,12 @@ class MachineFunction {
/// Alignment - The alignment of the function.
unsigned Alignment;
- /// CallsSetJmp - True if the function calls setjmp or sigsetjmp. This is used
- /// to limit optimizations which cannot reason about the control flow of
- /// setjmp.
- bool CallsSetJmp;
+ /// ExposesReturnsTwice - True if the function calls setjmp or related
+ /// functions with attribute "returns twice", but doesn't have
+ /// the attribute itself.
+ /// This is used to limit optimizations which cannot reason
+ /// about the control flow of such functions.
+ bool ExposesReturnsTwice;
MachineFunction(const MachineFunction &); // DO NOT IMPLEMENT
void operator=(const MachineFunction&); // DO NOT IMPLEMENT
@@ -187,20 +189,22 @@ public:
///
void setAlignment(unsigned A) { Alignment = A; }
- /// EnsureAlignment - Make sure the function is at least 'A' bits aligned.
+ /// EnsureAlignment - Make sure the function is at least 1 << A bytes aligned.
void EnsureAlignment(unsigned A) {
if (Alignment < A) Alignment = A;
}
- /// callsSetJmp - Returns true if the function calls setjmp or sigsetjmp.
- bool callsSetJmp() const {
- return CallsSetJmp;
+ /// exposesReturnsTwice - Returns true if the function calls setjmp or
+ /// any other similar functions with attribute "returns twice" without
+ /// having the attribute itself.
+ bool exposesReturnsTwice() const {
+ return ExposesReturnsTwice;
}
- /// setCallsSetJmp - Set a flag that indicates if there's a call to setjmp or
- /// sigsetjmp.
- void setCallsSetJmp(bool B) {
- CallsSetJmp = B;
+ /// setCallsSetJmp - Set a flag that indicates if there's a call to
+ /// a "returns twice" function.
+ void setExposesReturnsTwice(bool B) {
+ ExposesReturnsTwice = B;
}
/// getInfo - Keep track of various per-function pieces of information for
@@ -376,7 +380,8 @@ public:
MachineMemOperand *getMachineMemOperand(MachinePointerInfo PtrInfo,
unsigned f, uint64_t s,
unsigned base_alignment,
- const MDNode *TBAAInfo = 0);
+ const MDNode *TBAAInfo = 0,
+ const MDNode *Ranges = 0);
/// getMachineMemOperand - Allocate a new MachineMemOperand by copying
/// an existing one, adjusting by an offset and using the given size.
@@ -437,6 +442,7 @@ template <> struct GraphTraits<MachineFunction*> :
typedef MachineFunction::iterator nodes_iterator;
static nodes_iterator nodes_begin(MachineFunction *F) { return F->begin(); }
static nodes_iterator nodes_end (MachineFunction *F) { return F->end(); }
+ static unsigned size (MachineFunction *F) { return F->size(); }
};
template <> struct GraphTraits<const MachineFunction*> :
public GraphTraits<const MachineBasicBlock*> {
@@ -452,6 +458,9 @@ template <> struct GraphTraits<const MachineFunction*> :
static nodes_iterator nodes_end (const MachineFunction *F) {
return F->end();
}
+ static unsigned size (const MachineFunction *F) {
+ return F->size();
+ }
};
--
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