Sema::FinalizeDeclaratorGroup()...make sure we emit an diagnostic for tentative definitions with incomplete types. Touch up all test cases that are effected.

llvm-svn: 46152

the position *before* a statement, regardless of whether we are doing a
forward or backwards analysis.

llvm-svn: 46151

is because GNU-style Statement-expressions cause the last statement in the
statement-expression to act like an expression.

We now have two notions: block-level statements and block-level expressions.

The former are all Stmt* that appear in the list of statements in CFGBlocks. The
latter is the subset of the former; these block-level statements are used as
subexpressions somewhere in the AST. CFG::isBlockExpr() returns true for the
latter, not the former (previously isBlockExpr() always returned true for
non-Expr Stmt*).

Modified the LiveVariables analysis to also track liveness state for block-level
expressions (using the updated definition of block-level expressions).

Modified the dataflow solver so that when it records values for block-level
statements, it records the dataflow value *before* the transfer function for a
Stmt* is evaluated (not after). This is more in sync in what clients will want.

Modified CFGStmtVisitor to record the current block-level statement.

llvm-svn: 46143

llvm-svn: 46141

Improve diagnostic wording...

llvm-svn: 46138

values for the block-level expressions.

Modified 'LiveVariables' to provide the option to clients to record
liveness information for block-level expressions (using the above feature).

Modified 'DeadStores' to conform to the new interface of 'LiveVariables'.

Modified 'GRConstants' to compute liveness information for block-level
expressions.

llvm-svn: 46137

llvm-svn: 46136

llvm-svn: 46135

llvm-svn: 46134

llvm-svn: 46133

__builtin_overload takes 2 or more arguments:
0) a non-zero constant-expr for the number of arguments the overloaded 
   functions will take
1) the arguments to pass to the matching overloaded function
2) a list of functions to match.

The return type of __builtin_overload is inferred from the function whose args
match the types of the arguments passed to the builtin.  For example:

float a;
float sinf(float);
int   sini(int);

float b = __builtin_overload(1, a, sini, sinf);

Says that we are overloading functions that take one argument, and trying to 
pass an argument of the same type as 'a'.  sini() does not match since it takes
and argument of type int.  sinf does match, so at codegen time this will turn
into float b = sinf(a);

llvm-svn: 46132

size in accordance with how rewriter synthesizes method name.

llvm-svn: 46131

Refactored the use of this method into both the Sema module and Analysis module,
which were using their own static functions that did the same thing.

llvm-svn: 46129

when creating its type.

llvm-svn: 46109

llvm-svn: 46107

state.

llvm-svn: 46106

Declarator::clear(): Null out variable after it's been deleted.

This avoids a double free (which is good:-)

Bug submitted by Eli.

llvm-svn: 46105

Simplify comment.

llvm-svn: 46103

Type::isArithmeticType(): disallow incomplete enum decls.

Bug submitted by Eli.

llvm-svn: 46102

map. This will allow us to quickly prune them from maps without searching the
entire map.

llvm-svn: 46101

to sort sub-expressions before Block-level expressions.

llvm-svn: 46100

values are determined when evaluating the parent expression.

llvm-svn: 46096

constant propagation.

llvm-svn: 46095

handle the case where the number of nodes was 0.

Fixed bug in GREngineImpl where we did not proceed to the next statement
when processing a PostStmt location.

llvm-svn: 46093

llvm-svn: 46092

llvm-svn: 46091

llvm-svn: 46087

llvm-svn: 46086

that were "not a constant."

llvm-svn: 46085

call the dstor instead of using delete.

llvm-svn: 46084

a method named ImpCastExprToType in Sema.

Use this method to insert implicit casts for case statements from their 
operand type to the condition type of the switch.  This fixes a crash on
test/CodeGen/statements.c, reported by Eli Friedman.

llvm-svn: 46083

llvm-svn: 46082

llvm-svn: 46081

ctor for GREngine.

llvm-svn: 46080

llvm-svn: 46079

llvm-svn: 46078

llvm-svn: 46076

llvm-svn: 46075

Fixed some compilation errors with GREngine that showed up during
template instantiation.

llvm-svn: 46074

node caching in GREngine will guarantee that we do not insert a node twice into
a nodeset.

llvm-svn: 46071