Commit Graph

266 Commits

Author SHA1 Message Date
Nicolas Geoffray fbfc451ba9 The ELF ABI specifies F1-F8 registers as argument registers for double, not
F1-F10. This affects only ELF, not MachO.

llvm-svn: 35622
2007-04-03 10:27:07 +00:00
Chris Lattner 1eb94d973a implement the new addressing mode description hook.
llvm-svn: 35521
2007-03-30 23:15:24 +00:00
Lauro Ramos Venancio 682baf2dda "The C standards do say that "char" may either be a "signed char" or "unsigned
char" and it is up to the compilers implementation or the platform which is
followed."
http://www.arm.linux.org.uk/docs/faqs/signedchar.php

llvm-svn: 35382
2007-03-27 16:33:08 +00:00
Chris Lattner d685514e2e switch TargetLowering::getConstraintType to take the entire constraint,
not just the first letter.  No functionality change.

llvm-svn: 35322
2007-03-25 02:14:49 +00:00
Nicolas Geoffray 7aad92868c Stack and register alignment of call arguments in the ELF ABI
llvm-svn: 35083
2007-03-13 15:02:46 +00:00
Evan Cheng b9dce9db85 More flexible TargetLowering LSR hooks for testing whether an immediate is a legal target address immediate or scale.
llvm-svn: 35074
2007-03-12 23:29:01 +00:00
Chris Lattner 4f2e4e0f92 Switch PPC return lower to use an autogenerated CC description.
llvm-svn: 34940
2007-03-06 00:59:59 +00:00
Nicolas Geoffray 75ab9799df Implemented the frameaddress intrinsic for PPC.
llvm-svn: 34787
2007-03-01 13:11:38 +00:00
Nicolas Geoffray 89d81878d2 Differentiate between the MachO and the ELF ABI the CALL instruction.
llvm-svn: 34667
2007-02-27 13:01:19 +00:00
Chris Lattner 535bd6d3ba always lower to RETFLAG, never leave it as just ret.
llvm-svn: 34639
2007-02-26 19:44:02 +00:00
Chris Lattner 1ee61ab414 no really, this is the right patch
llvm-svn: 34605
2007-02-25 20:01:40 +00:00
Chris Lattner 4d2f5f8740 always promote float varargs to double.
llvm-svn: 34604
2007-02-25 19:59:18 +00:00
Chris Lattner 43df5b335c implement support for the linux/ppc function call ABI. Patch by
Nicolas Geoffray!

llvm-svn: 34574
2007-02-25 05:34:32 +00:00
Jim Laskey e0008e23cf Simplify lowering and selection of exception ops.
llvm-svn: 34488
2007-02-22 14:56:36 +00:00
Jim Laskey 3796abea0f Support to provide exception and selector registers.
llvm-svn: 34482
2007-02-21 22:54:50 +00:00
Chris Lattner 1f7d60262e Fix ixaddrs as well, allowing ppc64 to compile to:
_test2:
        li r2, 0
        lis r3, 1
        std r2, 9024(r3)
        blr

instead of:

_test2:
        lis r2, 1
        li r3, 0
        ori r2, r2, 9024
        std r3, 0(r2)
        blr

This implements CodeGen/PowerPC/LargeAbsoluteAddr.ll:test2

llvm-svn: 34373
2007-02-17 06:57:26 +00:00
Chris Lattner 4a9c0bb147 Compile test/CodeGen/PowerPC/LargeAbsoluteAddr.ll to:
_test:
        lis r2, 743
        li r3, 0
        stw r3, 32751(r2)
        blr

instead of:

_test:
        li r2, 0
        stw r2, 32751(48693248)
        blr

Implement support for ppc64 as well, allowing it to produce better code.

llvm-svn: 34371
2007-02-17 06:44:03 +00:00
Nate Begeman eda5997cc8 Finish off bug 680, allowing targets to custom lower frame and return
address nodes.

llvm-svn: 33636
2007-01-29 22:58:52 +00:00
Anton Korobeynikov 037c867b54 Propagate changes from my local tree. This patch includes:
1. New parameter attribute called 'inreg'. It has meaning "place this
parameter in registers, if possible". This is some generalization of
gcc's regparm(n) attribute. It's currently used only in X86-32 backend.
2. Completely rewritten CC handling/lowering code inside X86 backend.
Merged stdcall + c CCs and fastcall + fast CC.
3. Dropped CSRET CC. We cannot add struct return variant for each
target-specific CC (e.g. stdcall + csretcc and so on).
4. Instead of CSRET CC introduced 'sret' parameter attribute. Setting in
on first attribute has meaning 'This is hidden pointer to structure
return. Handle it gently'.
5. Fixed small bug in llvm-extract + add new feature to
FunctionExtraction pass, which relinks all internal-linkaged callees
from deleted function to external linkage. This will allow further
linking everything together.

NOTEs: 1. Documentation will be updated soon.
       2. llvm-upgrade should be improved to translate csret => sret.
          Before this, there will be some unexpected test fails.
llvm-svn: 33597
2007-01-28 13:31:35 +00:00
Jim Laskey f9e5445ed4 Make LABEL a builtin opcode.
llvm-svn: 33537
2007-01-26 14:34:52 +00:00
Evan Cheng 8bc7ddb84d setSetCCIsExpensive is gone.
llvm-svn: 32941
2007-01-05 23:42:53 +00:00
Jim Laskey f07cc990dd Provide support for FP_TO_UINT.
llvm-svn: 32599
2006-12-15 14:32:57 +00:00
Chris Lattner f4646a7e54 Another step forward in PPC64 JIT support: we now no-longer need stubs
emitted for external globals in PPC64-JIT-PIC mode (which is good because
we didn't handle them before!).

This also fixes a bug handling the picbase delta, which we would get wrong
in some cases.

llvm-svn: 32451
2006-12-11 23:22:45 +00:00
Jim Laskey 2b136a73bd Missing opcode.
llvm-svn: 32439
2006-12-11 18:45:56 +00:00
Anton Korobeynikov 3b7c257cae Cleaned setjmp/longjmp lowering interfaces. Now we're producing right
code (both asm & cbe) for Mingw32 target.
Removed autoconf checks for underscored versions of setjmp/longjmp.

llvm-svn: 32415
2006-12-10 23:12:42 +00:00
Chris Lattner d8e7451dc3 Fix i64 uint_to_fp on ppc64
llvm-svn: 32297
2006-12-07 01:24:16 +00:00
Jim Laskey e4f4d048dd Restoration of the stack pointer after a deallocation of a alloca was not
updating the SP link.

llvm-svn: 32202
2006-12-04 22:04:42 +00:00
Jim Laskey 1b0bc794e6 1. In ppc64 mode we need only use one GPR.
2. Float values need to be promoted to double when they are vararg.

llvm-svn: 32074
2006-12-01 16:30:47 +00:00
Chris Lattner 09ed0ff2ac Fix the CodeGen/PowerPC/vec_constants.ll regression.
llvm-svn: 32057
2006-12-01 01:45:39 +00:00
Chris Lattner 2f648fc55d Fix bug codegen'ing FP constant vectors with integer splats. Make sure the
created intrinsics have the right integer types.  This fixes
PowerPC/2006-11-29-AltivecFPSplat.ll

llvm-svn: 32024
2006-11-29 19:58:49 +00:00
Jim Laskey 152671f0bf Offset for load of 32-bit arg in 64-bit world was incorrect.
llvm-svn: 32019
2006-11-29 13:37:09 +00:00
Jim Laskey 40182179b6 Remove debug code.
llvm-svn: 31970
2006-11-28 18:27:02 +00:00
Jim Laskey f4e2e009d9 32-bit int space was not accounted for properly in lowerCall.
llvm-svn: 31966
2006-11-28 14:53:52 +00:00
Evan Cheng 20350c4025 Change MachineInstr ctor's to take a TargetInstrDescriptor reference instead
of opcode and number of operands.

llvm-svn: 31947
2006-11-27 23:37:22 +00:00
Chris Lattner 2cca385fbb on ppc64, float arguments take 8-byte stack slots not 4-byte stack slots.
Also, valist should create a pointer RC reg class value, not a GPRC value.

llvm-svn: 31840
2006-11-18 01:57:19 +00:00
Chris Lattner be9377a1e3 convert PPC::BCC to use the 'pred' operand instead of separate predicate
value and CR reg #.  This requires swapping the order of these everywhere
that touches BCC and requires us to write custom matching logic for
PPCcondbranch :(

llvm-svn: 31835
2006-11-17 22:37:34 +00:00
Chris Lattner e0263794f4 rename PPC::COND_BRANCH to PPC::BCC
llvm-svn: 31834
2006-11-17 22:14:47 +00:00
Chris Lattner 8c6a41ea12 start using PPC predicates more consistently.
llvm-svn: 31833
2006-11-17 22:10:59 +00:00
Jim Laskey 48850c10c0 This is a general clean up of the PowerPC ABI. Address several problems and
bugs including making sure that the TOS links back to the previous frame,
that the maximum call frame size is not included twice when using frame
pointers, no longer growing the frame on calls, double storing of SP and
a cleaner/faster dynamic alloca.

llvm-svn: 31792
2006-11-16 22:43:37 +00:00
Chris Lattner 474b5b7c95 fix ldu/stu jit encoding. Swith 64-bit preinc load instrs to use memri
addrmodes.

llvm-svn: 31757
2006-11-15 19:55:13 +00:00
Chris Lattner 97ff46b3cc lower "X = seteq Y, Z" to '(shr (ctlz (xor Y, Z)), 5)' instead of
'(shr (ctlz (sub Y, Z)), 5)'.

The use of xor better exposes the operation to bit-twiddling logic in the
dag combiner.  For example, this:

typedef struct {
  unsigned prefix : 4;
  unsigned code : 4;
  unsigned unsigned_p : 4;
} tree_common;

int foo(tree_common *a, tree_common *b) {
  return a->code == b->code;
}

Now compiles to:

_foo:
        lwz r2, 0(r4)
        lwz r3, 0(r3)
        xor r2, r3, r2
        rlwinm r2, r2, 28, 28, 31
        cntlzw r2, r2
        srwi r3, r2, 5
        blr

instead of:

_foo:
        lbz r2, 3(r4)
        lbz r3, 3(r3)
        srwi r2, r2, 4
        srwi r3, r3, 4
        subf r2, r2, r3
        cntlzw r2, r2
        srwi r3, r2, 5
        blr

saving a cycle.

llvm-svn: 31725
2006-11-14 05:28:08 +00:00
Chris Lattner 683712583a minor tweaks, reject vector preinc.
llvm-svn: 31717
2006-11-14 01:38:31 +00:00
Chris Lattner b314b155ed ppc64 doesn't have lwau, don't attempt to form it.
llvm-svn: 31656
2006-11-11 00:08:42 +00:00
Chris Lattner c9fa36d706 implement preinc support for r+i loads on ppc64
llvm-svn: 31654
2006-11-10 23:58:45 +00:00
Chris Lattner ce6455489a add an initial cut at preinc loads for ppc32. This is broken for ppc64
(because the 64-bit reg target versions aren't implemented yet), doesn't
support r+r addr modes, and doesn't handle stores, but it works otherwise. :)

This is disabled unless -enable-ppc-preinc is passed to llc for now.

llvm-svn: 31621
2006-11-10 02:08:47 +00:00
Evan Cheng 36a8fbf771 PPC supports i32 / i64 pre-inc load / store.
llvm-svn: 31599
2006-11-09 19:11:50 +00:00
Evan Cheng b15000736c Rename ISD::MemOpAddrMode to ISD::MemIndexedMode
llvm-svn: 31595
2006-11-09 17:55:04 +00:00
Chris Lattner a801fcedd3 Refactor all the addressing mode selection stuff into the isel lowering
class, where it can be used for preinc formation.

llvm-svn: 31536
2006-11-08 02:15:41 +00:00
Reid Spencer de46e48420 For PR786:
Turn on -Wunused and -Wno-unused-parameter. Clean up most of the resulting
fall out by removing unused variables. Remaining warnings have to do with
unused functions (I didn't want to delete code without review) and unused
variables in generated code. Maintainers should clean up the remaining
issues when they see them. All changes pass DejaGnu tests and Olden.

llvm-svn: 31380
2006-11-02 20:25:50 +00:00
Chris Lattner 584a11ae22 Implement the getRegForInlineAsmConstraint method for PPC. With recent
sdisel changes, this eliminates a ton of copies around common inline asms.
For example:

int test2(int Y, int X) {
  asm("foo %0, %1" : "=r"(X): "r"(X));
  return X;
}

now compiles to:

_test2:
        foo r3, r4
        blr

instead of:

_test2:
        mr r2, r4
        foo r2, r2
        mr r3, r2
        blr

GCC produces:

_test2:
        foo r4, r4
        mr r3,r4
        blr

llvm-svn: 31367
2006-11-02 01:44:04 +00:00