Changes in directory llvm/lib/Analysis:
BasicAliasAnalysis.cpp updated: 1.78 -> 1.79
---
Log message:
Use autogenerated mod/ref info for intrinsics.
---
Diffs of the changes: (+26 -22)
BasicAliasAnalysis.cpp | 48 ++++++++++++++++++++++++++----------------------
1 files changed, 26 insertions(+), 22 deletions(-)
Index: llvm/lib/Analysis/BasicAliasAnalysis.cpp
diff -u llvm/lib/Analysis/BasicAliasAnalysis.cpp:1.78
llvm/lib/Analysis/BasicAliasAnalysis.cpp:1.79
--- llvm/lib/Analysis/BasicAliasAnalysis.cpp:1.78 Sat Mar 4 15:48:01 2006
+++ llvm/lib/Analysis/BasicAliasAnalysis.cpp Thu Mar 9 16:31:29 2006
@@ -741,12 +741,7 @@
// Note that this list cannot contain libm functions (such as acos and sqrt)
// that set errno on a domain or other error.
-static const char *DoesntAccessMemoryTable[] = {
- // LLVM intrinsics:
- "llvm.frameaddress", "llvm.returnaddress", "llvm.readport",
- "llvm.isunordered", "llvm.sqrt", "llvm.bswap.i16", "llvm.bswap.i32",
- "llvm.bswap.i64", "llvm.ctpop", "llvm.ctlz", "llvm.cttz",
-
+static const char *DoesntAccessMemoryFns[] = {
"abs", "labs", "llabs", "imaxabs", "fabs", "fabsf", "fabsl",
"trunc", "truncf", "truncl", "ldexp",
@@ -783,10 +778,8 @@
"__signbit", "__signbitf", "__signbitl",
};
-static const unsigned DAMTableSize =
- sizeof(DoesntAccessMemoryTable)/sizeof(DoesntAccessMemoryTable[0]);
-static const char *OnlyReadsMemoryTable[] = {
+static const char *OnlyReadsMemoryFns[] = {
"atoi", "atol", "atof", "atoll", "atoq", "a64l",
"bcmp", "memcmp", "memchr", "memrchr", "wmemcmp", "wmemchr",
@@ -810,34 +803,45 @@
"feof_unlocked", "ferror_unlocked", "fileno_unlocked"
};
-static const unsigned ORMTableSize =
- sizeof(OnlyReadsMemoryTable)/sizeof(OnlyReadsMemoryTable[0]);
-
AliasAnalysis::ModRefBehavior
BasicAliasAnalysis::getModRefBehavior(Function *F, CallSite CS,
std::vector<PointerAccessInfo> *Info) {
if (!F->isExternal()) return UnknownModRefBehavior;
+ static std::vector<const char*> NoMemoryTable, OnlyReadsMemoryTable;
+
static bool Initialized = false;
if (!Initialized) {
+ NoMemoryTable.insert(NoMemoryTable.end(),
+ DoesntAccessMemoryFns,
+ DoesntAccessMemoryFns+
+
sizeof(DoesntAccessMemoryFns)/sizeof(DoesntAccessMemoryFns[0]));
+
+ OnlyReadsMemoryTable.insert(OnlyReadsMemoryTable.end(),
+ OnlyReadsMemoryFns,
+ OnlyReadsMemoryFns+
+
sizeof(OnlyReadsMemoryFns)/sizeof(OnlyReadsMemoryFns[0]));
+#define GET_MODREF_BEHAVIOR
+#include "llvm/Intrinsics.gen"
+#undef GET_MODREF_BEHAVIOR
+
// Sort the table the first time through.
- std::sort(DoesntAccessMemoryTable, DoesntAccessMemoryTable+DAMTableSize,
- StringCompare());
- std::sort(OnlyReadsMemoryTable, OnlyReadsMemoryTable+ORMTableSize,
+ std::sort(NoMemoryTable.begin(), NoMemoryTable.end(), StringCompare());
+ std::sort(OnlyReadsMemoryTable.begin(), OnlyReadsMemoryTable.end(),
StringCompare());
Initialized = true;
}
- const char **Ptr = std::lower_bound(DoesntAccessMemoryTable,
- DoesntAccessMemoryTable+DAMTableSize,
- F->getName().c_str(), StringCompare());
- if (Ptr != DoesntAccessMemoryTable+DAMTableSize && *Ptr == F->getName())
+ std::vector<const char*>::iterator Ptr =
+ std::lower_bound(NoMemoryTable.begin(), NoMemoryTable.end(),
+ F->getName().c_str(), StringCompare());
+ if (Ptr != NoMemoryTable.end() && *Ptr == F->getName())
return DoesNotAccessMemory;
- Ptr = std::lower_bound(OnlyReadsMemoryTable,
- OnlyReadsMemoryTable+ORMTableSize,
+ Ptr = std::lower_bound(OnlyReadsMemoryTable.begin(),
+ OnlyReadsMemoryTable.end(),
F->getName().c_str(), StringCompare());
- if (Ptr != OnlyReadsMemoryTable+ORMTableSize && *Ptr == F->getName())
+ if (Ptr != OnlyReadsMemoryTable.end() && *Ptr == F->getName())
return OnlyReadsMemory;
return UnknownModRefBehavior;
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