Before inserting   llvm.dbg.declare intrinsic at the end of a basic block, check whether the basic block has a terminator or not.
This API is used by clang and the test case is test/CodeGen/debug-info-crash.c in clang module.

llvm-svn: 94820

llvm-svn: 94809

llvm-svn: 94808

llvm-svn: 94807

llvm-svn: 94805

llvm-svn: 94804

(via APInt &RHSKnownZero = KnownZero, etc) seems dangerous and confusing to me: it
is easy not to notice this, and then wonder why KnownZero/RHSKnownZero changed
underneath you when you modified RHSKnownZero/KnownZero etc.  So get rid of this.
No intended functionality change (tested with "make check" + llvm-gcc bootstrap).

llvm-svn: 94802

(fix for PR6165) are needed here too.

llvm-svn: 94801

llvm-svn: 94783

lowering. We'll either figure it out, or not and be lowered by
SelectionDAGBuild.

Add test.

llvm-svn: 94775

llvm-svn: 94771

llvm-svn: 94765

enhanced disassembler, and the necessary makefile
rules to build the table for X86.

llvm-svn: 94764

llvm-svn: 94763

"visit*" method is called, take the newly created nodes, walk them in a DFS
fashion, and if they don't have an ordering set, then give it one.

llvm-svn: 94757

  getelementptr (i8* inttoptr (i64 1 to i8*), i32 -1) 
  to
  inttoptr (i64 0 to i8*)
from the VMCore constant folder. It didn't handle sign-extension properly
in the case where the source integer is smaller than a pointer size. And,
it relied on an assumption about sizeof(i8).

The Analysis constant folder still folds these kinds of things; it has
access to TargetData, so it can do them right.

Add a testcase which tests that the VMCore constant folder doesn't
miscompile this, and that the Analysis folder does fold it.

llvm-svn: 94750

llvm-svn: 94746

when it should have been and'd with LowBits.  Fix that and while there beef
up the logic in the case of a negative LHS.

llvm-svn: 94745

llvm-svn: 94743

rather than after.

llvm-svn: 94742

it has before/end body hooks.

 lib/Target/Alpha/AsmPrinter/AlphaAsmPrinter.cpp |   49 ++-----------
 lib/Target/Mips/AsmPrinter/MipsAsmPrinter.cpp   |   87 ++++++------------------
 lib/Target/XCore/AsmPrinter/XCoreAsmPrinter.cpp |   56 +++------------
 test/CodeGen/XCore/ashr.ll                      |    2 
 4 files changed, 48 insertions(+), 146 deletions(-)

llvm-svn: 94741

getOffsetOf, and remove the comment about assuming i8 is byte-aligned,
which is no longer applicable.

llvm-svn: 94738

use plain SCEVUnknowns with ConstantExpr::getSizeOf and
ConstantExpr::getOffsetOf constants. This eliminates a bunch of
special-case code.

Also add code for pattern-matching these expressions, for clients that
want to recognize them.

Move ScalarEvolution's logic for expanding array and vector sizeof
expressions into an element count times the element size, to expose
the multiplication to subsequent folding, into the regular constant
folder.

llvm-svn: 94737

llvm-svn: 94732

Fix a bug introduced by r94490 where it created a X86ISD::CMP whose output type is different from its inputs.
This fixes PR6146.

llvm-svn: 94731

llvm-svn: 94729

llvm-svn: 94728

Diffstat:
 6 files changed, 30 insertions(+), 284 deletions(-)

llvm-svn: 94727

This allows code gen and the exception table writer to cooperate to make sure
landing pads are associated with the correct invoke locations.

llvm-svn: 94726

runOnMachineFunction, and switch PPC to use EmitFunctionBody.
The two ppc asmprinters now don't heave to define 
runOnMachineFunction.

llvm-svn: 94722

llvm-svn: 94719

"0" is nice and target independent.

llvm-svn: 94718

Move the X86 implementation of function body emission up to 
AsmPrinter::EmitFunctionBody, which works by calling the virtual
EmitInstruction method.

llvm-svn: 94716

Overload it in the ARM backend to do nothing, since is does insane
constant pool emission.

llvm-svn: 94708

llvm-svn: 94706

constify EmitLinkage.

llvm-svn: 94705

llvm-svn: 94703

MachineFunction::Alignment instead.

llvm-svn: 94701

is now less than 200 LOC!

llvm-svn: 94699

llvm-svn: 94698