Misha Brukman [Sat, 28 Feb 2004 03:33:30 +0000 (03:33 +0000)]
New Function-level transformation utils.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11938
91177308-0d34-0410-b5e6-
96231b3b80d8
Misha Brukman [Sat, 28 Feb 2004 03:33:17 +0000 (03:33 +0000)]
Add the prototype for the LoopExtractor Pass.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11937
91177308-0d34-0410-b5e6-
96231b3b80d8
Misha Brukman [Sat, 28 Feb 2004 03:33:01 +0000 (03:33 +0000)]
A pass that uses the generic CodeExtractor to rip out *every* loop in every
function, as long as the loop isn't the only one in that function. This should
help debugging passes easier with BugPoint.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11936
91177308-0d34-0410-b5e6-
96231b3b80d8
Misha Brukman [Sat, 28 Feb 2004 03:26:20 +0000 (03:26 +0000)]
A generic code extractor: given a list of BasicBlocks, it will rip them out into
a new function, taking care of inputs and outputs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11935
91177308-0d34-0410-b5e6-
96231b3b80d8
Misha Brukman [Sat, 28 Feb 2004 03:20:41 +0000 (03:20 +0000)]
Two testcases for loops: one with outputs, one without.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11934
91177308-0d34-0410-b5e6-
96231b3b80d8
Alkis Evlogimenos [Sat, 28 Feb 2004 03:20:31 +0000 (03:20 +0000)]
Further comment updates.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11933
91177308-0d34-0410-b5e6-
96231b3b80d8
Alkis Evlogimenos [Sat, 28 Feb 2004 03:12:31 +0000 (03:12 +0000)]
Update comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11932
91177308-0d34-0410-b5e6-
96231b3b80d8
Alkis Evlogimenos [Sat, 28 Feb 2004 02:56:26 +0000 (02:56 +0000)]
My previous commit broke the jit. The shift instructions always take
an 8-bit immediate. So mark the shifts that take immediates as taking
an 8-bit argument. The rest with the implicit use of CL are marked
appropriately.
A bug still exists:
def SHLDmri32 : I2A8 <"shld", 0xA4, MRMDestMem>, TB; // [mem32] <<= [mem32],R32 imm8
The immediate in the above instruction is 8-bit but the memory
reference is 32-bit. The printer prints this as an 8-bit reference
which confuses the assembler. Same with SHRDmri32.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11931
91177308-0d34-0410-b5e6-
96231b3b80d8
Brian Gaeke [Fri, 27 Feb 2004 21:15:40 +0000 (21:15 +0000)]
Turn off the SparcV9MachineCodeDestructionPass for now, because it's buggy
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11930
91177308-0d34-0410-b5e6-
96231b3b80d8
Brian Gaeke [Fri, 27 Feb 2004 21:01:14 +0000 (21:01 +0000)]
Correct DestroyMachineFunction's getPassName
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11929
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Fri, 27 Feb 2004 20:05:15 +0000 (20:05 +0000)]
Only clone global nodes between graphs if both graphs have the global.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11928
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Fri, 27 Feb 2004 20:04:48 +0000 (20:04 +0000)]
ADD MORE FUNCTIONS!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11927
91177308-0d34-0410-b5e6-
96231b3b80d8
Alkis Evlogimenos [Fri, 27 Feb 2004 19:46:30 +0000 (19:46 +0000)]
Fix argument size for SHL, SHR, SAR, SHLD and SHRD families of
instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11923
91177308-0d34-0410-b5e6-
96231b3b80d8
Alkis Evlogimenos [Fri, 27 Feb 2004 18:57:00 +0000 (18:57 +0000)]
Fix encoding of ADD and SUB family of instructions. Also rearrange
them so that they are consistent with AND, XOR, etc...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11922
91177308-0d34-0410-b5e6-
96231b3b80d8
Alkis Evlogimenos [Fri, 27 Feb 2004 18:55:12 +0000 (18:55 +0000)]
Rename MRMS[0-7]{r,m} to MRM[0-7]{r,m}.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11921
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Fri, 27 Feb 2004 18:09:25 +0000 (18:09 +0000)]
setcond instructions don't have aliasing implications.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11919
91177308-0d34-0410-b5e6-
96231b3b80d8
John Criswell [Fri, 27 Feb 2004 18:02:06 +0000 (18:02 +0000)]
Added d and hbd MultiSource applications.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11915
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Fri, 27 Feb 2004 17:28:25 +0000 (17:28 +0000)]
Fix Regression/Assembler/2004-02-27-SelfUseAssertError.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11913
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Fri, 27 Feb 2004 17:26:08 +0000 (17:26 +0000)]
Fix a verifier bug that was preventing us from ripping povray+libpng to pieces.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11912
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Fri, 27 Feb 2004 17:00:29 +0000 (17:00 +0000)]
Build zlib and libpng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11911
91177308-0d34-0410-b5e6-
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Chris Lattner [Fri, 27 Feb 2004 16:17:20 +0000 (16:17 +0000)]
Updates from Reid
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11908
91177308-0d34-0410-b5e6-
96231b3b80d8
Alkis Evlogimenos [Fri, 27 Feb 2004 16:13:37 +0000 (16:13 +0000)]
Add memory operand folding support for the SETcc family of
instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11907
91177308-0d34-0410-b5e6-
96231b3b80d8
Alkis Evlogimenos [Fri, 27 Feb 2004 15:05:28 +0000 (15:05 +0000)]
Make MachineOperand's immediate value an int and save 4 bytes out of
each MachineOperand. We don't really need an int64_t immediate :-).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11906
91177308-0d34-0410-b5e6-
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Alkis Evlogimenos [Fri, 27 Feb 2004 15:03:18 +0000 (15:03 +0000)]
Add memory operand folding support for SHLD and SHRD instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11905
91177308-0d34-0410-b5e6-
96231b3b80d8
Alkis Evlogimenos [Fri, 27 Feb 2004 09:28:43 +0000 (09:28 +0000)]
Add memory operand folding support for SHL, SHR and SAR, SHLD instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11903
91177308-0d34-0410-b5e6-
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Alkis Evlogimenos [Fri, 27 Feb 2004 06:57:05 +0000 (06:57 +0000)]
Rename SHL, SHR, SAR, SHLD and SHLR instructions to make them
consistent with the rest and also pepare for the addition of their
memory operand variants.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11902
91177308-0d34-0410-b5e6-
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Chris Lattner [Fri, 27 Feb 2004 06:28:34 +0000 (06:28 +0000)]
Initial checkin of document, contributed by Reid Spencer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11901
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Fri, 27 Feb 2004 06:27:46 +0000 (06:27 +0000)]
Implement test/Regression/Transforms/InstCombine/canonicalize_branch.ll
This is a really minor thing, but might help out the 'switch statement induction'
code in simplifycfg.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11900
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Fri, 27 Feb 2004 06:27:07 +0000 (06:27 +0000)]
The instcombiner should canonicalize comparisons.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11899
91177308-0d34-0410-b5e6-
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Alkis Evlogimenos [Fri, 27 Feb 2004 06:11:15 +0000 (06:11 +0000)]
Rename member function to be consistent with the rest.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11898
91177308-0d34-0410-b5e6-
96231b3b80d8
Alkis Evlogimenos [Fri, 27 Feb 2004 05:26:23 +0000 (05:26 +0000)]
Add improvements to the code generator.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11896
91177308-0d34-0410-b5e6-
96231b3b80d8
Alkis Evlogimenos [Fri, 27 Feb 2004 04:51:35 +0000 (04:51 +0000)]
Make spiller push stores right after the definition of a register so
that they are as far away from the loads as possible.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11895
91177308-0d34-0410-b5e6-
96231b3b80d8
Alkis Evlogimenos [Fri, 27 Feb 2004 01:52:34 +0000 (01:52 +0000)]
Fix crash caused by passing register 0 to
MRegisterInfo::isPhysicalRegister().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11894
91177308-0d34-0410-b5e6-
96231b3b80d8
Alkis Evlogimenos [Thu, 26 Feb 2004 23:22:23 +0000 (23:22 +0000)]
Clear maps right after basic block is processed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11892
91177308-0d34-0410-b5e6-
96231b3b80d8
Misha Brukman [Thu, 26 Feb 2004 23:20:29 +0000 (23:20 +0000)]
Doxygenify comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11891
91177308-0d34-0410-b5e6-
96231b3b80d8
Misha Brukman [Thu, 26 Feb 2004 23:20:08 +0000 (23:20 +0000)]
Doxygenify and tersify comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11890
91177308-0d34-0410-b5e6-
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John Criswell [Thu, 26 Feb 2004 23:13:34 +0000 (23:13 +0000)]
Added PR258 and 259.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11889
91177308-0d34-0410-b5e6-
96231b3b80d8
John Criswell [Thu, 26 Feb 2004 23:02:25 +0000 (23:02 +0000)]
Added support for C++ compilation.
Made removing the object files a separate sh command so that it can easily
be commented out.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11888
91177308-0d34-0410-b5e6-
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John Criswell [Thu, 26 Feb 2004 23:01:21 +0000 (23:01 +0000)]
C++ version of llvm-native-gcc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11887
91177308-0d34-0410-b5e6-
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John Criswell [Thu, 26 Feb 2004 22:56:13 +0000 (22:56 +0000)]
Fixed test case to actually check for the static declaration.
Oops.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11886
91177308-0d34-0410-b5e6-
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John Criswell [Thu, 26 Feb 2004 22:55:11 +0000 (22:55 +0000)]
Regression tests for PR258 and PR259.
2004-02-26-FPNotPrintableConstants.llx ensures that constants used in an
LLVM program are declared static if they are assigned to global variables.
2004-02-26-LinkOnceFunctions.llx ensures that linkonce functions get the
weak attribute.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11885
91177308-0d34-0410-b5e6-
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John Criswell [Thu, 26 Feb 2004 22:20:58 +0000 (22:20 +0000)]
Fixes for PR258 and PR259.
Functions with linkonce linkage are declared with weak linkage.
Global floating point constants used to represent unprintable values
(such as NaN and infinity) are declared static so that they don't interfere
with other CBE generated translation units.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11884
91177308-0d34-0410-b5e6-
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Chris Lattner [Thu, 26 Feb 2004 22:07:22 +0000 (22:07 +0000)]
Be a good little compiler and handle direct calls efficiently, even if there
are beastly ConstantPointerRefs in the way...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11883
91177308-0d34-0410-b5e6-
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Alkis Evlogimenos [Thu, 26 Feb 2004 22:00:20 +0000 (22:00 +0000)]
Uncomment assertions that register# != 0 on calls to
MRegisterInfo::is{Physical,Virtual}Register. Apply appropriate fixes
to relevant files.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11882
91177308-0d34-0410-b5e6-
96231b3b80d8
John Criswell [Thu, 26 Feb 2004 20:22:59 +0000 (20:22 +0000)]
Modified the default pathname for Povray.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11881
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Thu, 26 Feb 2004 20:02:23 +0000 (20:02 +0000)]
Since LLVM uses structure type equivalence, it isn't useful to keep around
multiple type names for the same structural type. Make DTE eliminate all
but one of the type names
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11879
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Thu, 26 Feb 2004 08:08:38 +0000 (08:08 +0000)]
Annotations are evil. This makes Value not derive from Annotable, which makes
all dynamically allocated LLVM values 4 bytes smaller, eliminate some vtables, and
make Value's destructor faster.
This makes Function derive from Annotation now because it is the only core LLVM
class that still has an annotation stuck onto it: MachineFunction.
MachineFunction is obviously horrible and gross (like most other annotations), but
will be the subject of refactorings later in the future. Besides many fewer
Function objects are dynamically allocated that instructions blocks, constants,
types, etc... :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11878
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Thu, 26 Feb 2004 08:02:57 +0000 (08:02 +0000)]
add note
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11876
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Thu, 26 Feb 2004 08:02:17 +0000 (08:02 +0000)]
Use a map instead of annotations
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11875
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Thu, 26 Feb 2004 08:01:57 +0000 (08:01 +0000)]
Make TargetData no longer use annotations!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11874
91177308-0d34-0410-b5e6-
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Chris Lattner [Thu, 26 Feb 2004 08:01:30 +0000 (08:01 +0000)]
Eliminate copy-and-paste comments
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11873
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Thu, 26 Feb 2004 07:59:22 +0000 (07:59 +0000)]
remove obsolete comment
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11872
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Thu, 26 Feb 2004 07:24:18 +0000 (07:24 +0000)]
Make sure that at least one virtual method is defined in a .cpp file to avoid
having the compiler emit RTTI and vtables to EVERY translation unit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11871
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Thu, 26 Feb 2004 07:13:46 +0000 (07:13 +0000)]
turn things like:
if (X == 0 || X == 2)
...where the comparisons and branches are in different blocks... into a switch
instruction. This comes up a lot in various programs, and works well with
the switch/switch merging code I checked earlier. For example, this testcase:
int switchtest(int C) {
return C == 0 ? f(123) :
C == 1 ? f(3123) :
C == 4 ? f(312) :
C == 5 ? f(1234): f(444);
}
is converted into this:
switch int %C, label %cond_false.3 [
int 0, label %cond_true.0
int 1, label %cond_true.1
int 4, label %cond_true.2
int 5, label %cond_true.3
]
instead of a whole bunch of conditional branches.
Admittedly the code is ugly, and incomplete. To be complete, we need to add
br -> switch merging and switch -> br merging. For example, this testcase:
struct foo { int Q, R, Z; };
#define A (X->Q+X->R * 123)
int test(struct foo *X) {
return A == 123 ? X1() :
A == 12321 ? X2():
(A == 111 || A == 222) ? X3() :
A == 875 ? X4() : X5();
}
Gets compiled to this:
switch int %tmp.7, label %cond_false.2 [
int 123, label %cond_true.0
int 12321, label %cond_true.1
int 111, label %cond_true.2
int 222, label %cond_true.2
]
...
cond_false.2: ; preds = %entry
%tmp.52 = seteq int %tmp.7, 875 ; <bool> [#uses=1]
br bool %tmp.52, label %cond_true.3, label %cond_false.3
where the branch could be folded into the switch.
This kind of thing occurs *ALL OF THE TIME*, especially in programs like
176.gcc, which is a horrible mess of code. It contains stuff like *shudder*:
#define SWITCH_TAKES_ARG(CHAR) \
( (CHAR) == 'D' \
|| (CHAR) == 'U' \
|| (CHAR) == 'o' \
|| (CHAR) == 'e' \
|| (CHAR) == 'u' \
|| (CHAR) == 'I' \
|| (CHAR) == 'm' \
|| (CHAR) == 'L' \
|| (CHAR) == 'A' \
|| (CHAR) == 'h' \
|| (CHAR) == 'z')
and
#define CONST_OK_FOR_LETTER_P(VALUE, C) \
((C) == 'I' ? SMALL_INTVAL (VALUE) \
: (C) == 'J' ? SMALL_INTVAL (-(VALUE)) \
: (C) == 'K' ? (unsigned)(VALUE) < 32 \
: (C) == 'L' ? ((VALUE) & 0xffff) == 0 \
: (C) == 'M' ? integer_ok_for_set (VALUE) \
: (C) == 'N' ? (VALUE) < 0 \
: (C) == 'O' ? (VALUE) == 0 \
: (C) == 'P' ? (VALUE) >= 0 \
: 0)
and
#define LEGITIMIZE_ADDRESS(X,OLDX,MODE,WIN) \
{ \
if (GET_CODE (X) == PLUS && CONSTANT_ADDRESS_P (XEXP (X, 1))) \
(X) = gen_rtx (PLUS, SImode, XEXP (X, 0), \
copy_to_mode_reg (SImode, XEXP (X, 1))); \
if (GET_CODE (X) == PLUS && CONSTANT_ADDRESS_P (XEXP (X, 0))) \
(X) = gen_rtx (PLUS, SImode, XEXP (X, 1), \
copy_to_mode_reg (SImode, XEXP (X, 0))); \
if (GET_CODE (X) == PLUS && GET_CODE (XEXP (X, 0)) == MULT) \
(X) = gen_rtx (PLUS, SImode, XEXP (X, 1), \
force_operand (XEXP (X, 0), 0)); \
if (GET_CODE (X) == PLUS && GET_CODE (XEXP (X, 1)) == MULT) \
(X) = gen_rtx (PLUS, SImode, XEXP (X, 0), \
force_operand (XEXP (X, 1), 0)); \
if (GET_CODE (X) == PLUS && GET_CODE (XEXP (X, 0)) == PLUS) \
(X) = gen_rtx (PLUS, Pmode, force_operand (XEXP (X, 0), NULL_RTX),\
XEXP (X, 1)); \
if (GET_CODE (X) == PLUS && GET_CODE (XEXP (X, 1)) == PLUS) \
(X) = gen_rtx (PLUS, Pmode, XEXP (X, 0), \
force_operand (XEXP (X, 1), NULL_RTX)); \
if (GET_CODE (X) == SYMBOL_REF || GET_CODE (X) == CONST \
|| GET_CODE (X) == LABEL_REF) \
(X) = legitimize_address (flag_pic, X, 0, 0); \
if (memory_address_p (MODE, X)) \
goto WIN; }
and others. These macros get used multiple times of course. These are such
lovely candidates for macros, aren't they? :)
This code also nicely handles LLVM constructs that look like this:
if (isa<CastInst>(I))
...
else if (isa<BranchInst>(I))
...
else if (isa<SetCondInst>(I))
...
else if (isa<UnwindInst>(I))
...
else if (isa<VAArgInst>(I))
...
where the isa can obviously be a dyn_cast as well. Switch instructions are a
good thing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11870
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Thu, 26 Feb 2004 05:21:21 +0000 (05:21 +0000)]
No need to clear the map here, it will always be empty
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11868
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Thu, 26 Feb 2004 05:00:15 +0000 (05:00 +0000)]
Fix a bug in the densemap that was killing the local allocator, and probably
other clients. The problem is that the nullVal member was left to the default
constructor to initialize, which for int's does nothing (ie, leaves it unspecified).
To get a zero value, we must use T(). It's C++ wonderful? :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11867
91177308-0d34-0410-b5e6-
96231b3b80d8
Alkis Evlogimenos [Thu, 26 Feb 2004 04:14:10 +0000 (04:14 +0000)]
Remove .micro references as those files no longer exist and add some more recent Makefile additions to the list
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11866
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Thu, 26 Feb 2004 04:07:12 +0000 (04:07 +0000)]
Fix typeo. grow() cannot shrink storage. clear() should really nuke storage
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11865
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Thu, 26 Feb 2004 03:45:03 +0000 (03:45 +0000)]
Fix typo
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11864
91177308-0d34-0410-b5e6-
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Chris Lattner [Thu, 26 Feb 2004 03:43:43 +0000 (03:43 +0000)]
The node doesn't have to be _no_ node flags, it just has to be complete and
not have any globals.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11863
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Thu, 26 Feb 2004 03:43:08 +0000 (03:43 +0000)]
Add _more_ functions
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11862
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Chris Lattner [Thu, 26 Feb 2004 03:34:30 +0000 (03:34 +0000)]
We have this snazzy link-time optimizer. How about we start using it? This
removes some cruft from 255.vortex, cleaning up after DAE and IPCP, which
do horrible, beautiful, things to vortex.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11861
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Chris Lattner [Thu, 26 Feb 2004 01:20:02 +0000 (01:20 +0000)]
Fix some warnings, some of which were spurious, and some of which were real
bugs. Thanks Brian!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11859
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Misha Brukman [Thu, 26 Feb 2004 00:37:12 +0000 (00:37 +0000)]
Instructions to call and return from functions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11858
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Brian Gaeke [Thu, 26 Feb 2004 00:08:25 +0000 (00:08 +0000)]
One B00g fixed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11857
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Alkis Evlogimenos [Wed, 25 Feb 2004 23:56:36 +0000 (23:56 +0000)]
Temporarily comment out asserts as they break things. I will uncomment
them when all the problem areas are fixed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11855
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Alkis Evlogimenos [Wed, 25 Feb 2004 23:47:17 +0000 (23:47 +0000)]
Fix typo. I wonder how this actually worked.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11854
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Alkis Evlogimenos [Wed, 25 Feb 2004 23:41:32 +0000 (23:41 +0000)]
Complete the SPEC_ROOT and USE_SPEC to SPEC2000_ROOT and USE_SPEC200 rename.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11853
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Chris Lattner [Wed, 25 Feb 2004 23:36:08 +0000 (23:36 +0000)]
Two changes:
1. Functions do not make things incomplete, only variables
2. Constant global variables no longer need to be marked incomplete, because
we are guaranteed that the initializer for the global will be in the
graph we are hacking on now. This makes resolution of indirect calls happen
a lot more in the bu pass, supports things like vtables and the C counterparts
(giant constant arrays of function pointers), etc...
Testcase here: test/Regression/Analysis/DSGraph/constant_globals.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11852
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Chris Lattner [Wed, 25 Feb 2004 23:34:04 +0000 (23:34 +0000)]
New testcase
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11851
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Chris Lattner [Wed, 25 Feb 2004 23:31:02 +0000 (23:31 +0000)]
When building local graphs, clone the initializer for constant globals into each
local graph that uses the global.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11850
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Alkis Evlogimenos [Wed, 25 Feb 2004 23:21:52 +0000 (23:21 +0000)]
Fix bugs found with recent addition of assertions in
MRegisterInfo::is{Physical,Virtual}Register.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11849
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Chris Lattner [Wed, 25 Feb 2004 23:08:00 +0000 (23:08 +0000)]
Simplify the dead node elimination stuff
Make the incompleteness marker faster by looping directly over the globals
instead of over the scalars to find the globals
Fix a bug where we didn't mark a global incomplete if it didn't have any
outgoing edges. This wouldn't break any current clients but is still wrong.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11848
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Chris Lattner [Wed, 25 Feb 2004 23:06:40 +0000 (23:06 +0000)]
Add a bunch more functions
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11847
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Chris Lattner [Wed, 25 Feb 2004 23:06:30 +0000 (23:06 +0000)]
Try harder to get symbol info
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11846
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Brian Gaeke [Wed, 25 Feb 2004 23:01:48 +0000 (23:01 +0000)]
Represent va_list in interpreter as a (ec-stack-depth . var-arg-index)
pair, and look up varargs in the execution stack every time, instead of
just pushing iterators (which can be invalidated during callFunction())
around. (union GenericValue now has a "pair of uints" member, to support
this mechanism.) Fixes Bug 234.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11845
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Brian Gaeke [Wed, 25 Feb 2004 22:09:36 +0000 (22:09 +0000)]
Great sparc renaming fallout IV: Sparc --> SparcV9.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11844
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Alkis Evlogimenos [Wed, 25 Feb 2004 22:07:14 +0000 (22:07 +0000)]
Duh, forgot to close the parenthesis.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11843
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Alkis Evlogimenos [Wed, 25 Feb 2004 22:04:28 +0000 (22:04 +0000)]
Add assert to isPhysicalRegister and isVirtualRegister to fail when
passed the special 'register' 0.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11842
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Alkis Evlogimenos [Wed, 25 Feb 2004 22:01:06 +0000 (22:01 +0000)]
Remove asssert since it is breaking cases that it shouldn't.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11841
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Alkis Evlogimenos [Wed, 25 Feb 2004 21:55:45 +0000 (21:55 +0000)]
Add DenseMap template and actually use it for for mapping virtual regs
to objects.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11840
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Chris Lattner [Wed, 25 Feb 2004 21:35:13 +0000 (21:35 +0000)]
Add a new pass, run internalize first
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11839
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Chris Lattner [Wed, 25 Feb 2004 21:35:02 +0000 (21:35 +0000)]
Add a new pass
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11838
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Chris Lattner [Wed, 25 Feb 2004 21:34:51 +0000 (21:34 +0000)]
Add prototype
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11837
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Chris Lattner [Wed, 25 Feb 2004 21:34:36 +0000 (21:34 +0000)]
My faith in programmers has been found to be totally misplaced. One would
assume that if they don't intend to write to a global variable, that they
would mark it as constant. However, there are people that don't understand
that the compiler can do nice things for them if they give it the information
it needs.
This pass looks for blatently obvious globals that are only ever read from.
Though it uses a trivially simple "alias analysis" of sorts, it is still able
to do amazing things to important benchmarks. 253.perlbmk, for example,
contains several ***GIANT*** function pointer tables that are not marked
constant and should be. Marking them constant allows the optimizer to turn
a whole bunch of indirect calls into direct calls. Note that only a link-time
optimizer can do this transformation, but perlbmk does have several strings
and other minor globals that can be marked constant by this pass when run
from GCCAS.
176.gcc has a ton of strings and large tables that are marked constant, both
at compile time (38 of them) and at link time (48 more). Other benchmarks
give similar results, though it seems like big ones have disproportionally
more than small ones.
This pass is extremely quick and does good things. I'm going to enable it
in gccas & gccld. Not bad for 50 SLOC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11836
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Misha Brukman [Wed, 25 Feb 2004 21:03:02 +0000 (21:03 +0000)]
SparcV8 regs are really 32-bit, not 64! Thanks, Chris.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11835
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Misha Brukman [Wed, 25 Feb 2004 21:02:21 +0000 (21:02 +0000)]
Clean up the tablegen descriptions for SparcV8.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11834
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Misha Brukman [Wed, 25 Feb 2004 21:00:05 +0000 (21:00 +0000)]
Fix the SparcV8 register definitions that were imported from PPC template.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11833
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Misha Brukman [Wed, 25 Feb 2004 20:52:20 +0000 (20:52 +0000)]
SparcV8 has different types of instructions, but F1 is only used for CALL.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11832
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Brian Gaeke [Wed, 25 Feb 2004 20:34:02 +0000 (20:34 +0000)]
Note that this test is currently expected to fail.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11831
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Chris Lattner [Wed, 25 Feb 2004 19:37:44 +0000 (19:37 +0000)]
Add an assertion
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11830
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Chris Lattner [Wed, 25 Feb 2004 19:30:19 +0000 (19:30 +0000)]
Fix failures in 099.go due to the cfgsimplify pass creating switch instructions
where there did not used to be any before
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11829
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Brian Gaeke [Wed, 25 Feb 2004 19:28:19 +0000 (19:28 +0000)]
SparcV8 skeleton
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11828
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Brian Gaeke [Wed, 25 Feb 2004 19:08:12 +0000 (19:08 +0000)]
Great renaming part II: Sparc --> SparcV9 (also includes command-line options and Makefiles)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11827
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Brian Gaeke [Wed, 25 Feb 2004 18:44:15 +0000 (18:44 +0000)]
Great renaming: Sparc --> SparcV9
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11826
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Chris Lattner [Wed, 25 Feb 2004 17:43:20 +0000 (17:43 +0000)]
Add a bunch more functions used by perlbmk
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11824
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John Criswell [Wed, 25 Feb 2004 17:15:02 +0000 (17:15 +0000)]
Updated to use llc to generate CBE code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11823
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Chris Lattner [Wed, 25 Feb 2004 16:36:51 +0000 (16:36 +0000)]
Substantial improvements and cleanups for the release notes. We were missing
a bunch of stuff! :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11822
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Chris Lattner [Wed, 25 Feb 2004 15:15:04 +0000 (15:15 +0000)]
Fix incorrect debug code
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11821
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Chris Lattner [Wed, 25 Feb 2004 07:00:55 +0000 (07:00 +0000)]
Teach the instruction selector how to transform 'array' GEP computations into X86
scaled indexes. This allows us to compile GEP's like this:
int* %test([10 x { int, { int } }]* %X, int %Idx) {
%Idx = cast int %Idx to long
%X = getelementptr [10 x { int, { int } }]* %X, long 0, long %Idx, ubyte 1, ubyte 0
ret int* %X
}
Into a single address computation:
test:
mov %EAX, DWORD PTR [%ESP + 4]
mov %ECX, DWORD PTR [%ESP + 8]
lea %EAX, DWORD PTR [%EAX + 8*%ECX + 4]
ret
Before it generated:
test:
mov %EAX, DWORD PTR [%ESP + 4]
mov %ECX, DWORD PTR [%ESP + 8]
shl %ECX, 3
add %EAX, %ECX
lea %EAX, DWORD PTR [%EAX + 4]
ret
This is useful for things like int/float/double arrays, as the indexing can be folded into
the loads&stores, reducing register pressure and decreasing the pressure on the decode unit.
With these changes, I expect our performance on 256.bzip2 and gzip to improve a lot. On
bzip2 for example, we go from this:
10665 asm-printer - Number of machine instrs printed
40 ra-local - Number of loads/stores folded into instructions
1708 ra-local - Number of loads added
1532 ra-local - Number of stores added
1354 twoaddressinstruction - Number of instructions added
1354 twoaddressinstruction - Number of two-address instructions
2794 x86-peephole - Number of peephole optimization performed
to this:
9873 asm-printer - Number of machine instrs printed
41 ra-local - Number of loads/stores folded into instructions
1710 ra-local - Number of loads added
1521 ra-local - Number of stores added
789 twoaddressinstruction - Number of instructions added
789 twoaddressinstruction - Number of two-address instructions
2142 x86-peephole - Number of peephole optimization performed
... and these types of instructions are often in tight loops.
Linear scan is also helped, but not as much. It goes from:
8787 asm-printer - Number of machine instrs printed
2389 liveintervals - Number of identity moves eliminated after coalescing
2288 liveintervals - Number of interval joins performed
3522 liveintervals - Number of intervals after coalescing
5810 liveintervals - Number of original intervals
700 spiller - Number of loads added
487 spiller - Number of stores added
303 spiller - Number of register spills
1354 twoaddressinstruction - Number of instructions added
1354 twoaddressinstruction - Number of two-address instructions
363 x86-peephole - Number of peephole optimization performed
to:
7982 asm-printer - Number of machine instrs printed
1759 liveintervals - Number of identity moves eliminated after coalescing
1658 liveintervals - Number of interval joins performed
3282 liveintervals - Number of intervals after coalescing
4940 liveintervals - Number of original intervals
635 spiller - Number of loads added
452 spiller - Number of stores added
288 spiller - Number of register spills
789 twoaddressinstruction - Number of instructions added
789 twoaddressinstruction - Number of two-address instructions
258 x86-peephole - Number of peephole optimization performed
Though I'm not complaining about the drop in the number of intervals. :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11820
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