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21234 Commits

Author SHA1 Message Date
Chris Lattner 2c0b435ba6 Rename SwitchSection -> switchSection to avoid conflicting with a future 
change.

llvm-svn: 24443
 2005-11-21 06:55:27 +00:00
Chris Lattner 8a4995e42a Start using PrivateGlobalPrefix correctly 
llvm-svn: 24442
 2005-11-21 06:51:52 +00:00
Chris Lattner 41cb115afb set PrivateGlobalPrefix on darwin, use it when printing out CP references 
llvm-svn: 24441
 2005-11-21 06:47:58 +00:00
Chris Lattner 618981fd03 Naturally align doubles in the constant pool, set PrivateGlobalPrefix on 
darwin, use it when printing the constant pool indices so the labels are
appropriately private, emit cp entries to .const instead of .data on darwin
and only emit a single .section for the constant pool, not one for each
entry.

llvm-svn: 24440
 2005-11-21 06:46:22 +00:00
Chris Lattner e927c3ff4e Add a new option. 
llvm-svn: 24439
 2005-11-21 06:41:08 +00:00
Chris Lattner 6c1ca888d4 Lower READCYCLECOUNTER correctly, preserving the chain result 
llvm-svn: 24438
 2005-11-20 22:57:19 +00:00
Chris Lattner 44c28c22b7 Legalize MERGE_VALUES, expand READCYCLECOUNTER correctly, so it doesn't 
break control dependence.

llvm-svn: 24437
 2005-11-20 22:56:56 +00:00
Chris Lattner 2d4ff48cf2 add a new node type 
llvm-svn: 24436
 2005-11-20 22:55:57 +00:00
Chris Lattner d1061ac8d1 encode rdtsc correctly 
llvm-svn: 24435
 2005-11-20 22:13:18 +00:00
Chris Lattner 6df9e11989 use chain operands to ensure the copies don't wander from the rdtsc instruction. 
llvm-svn: 24434
 2005-11-20 22:01:40 +00:00
Chris Lattner cde2a174a7 This should not be dce'd 
llvm-svn: 24433
 2005-11-20 21:46:52 +00:00
Andrew Lenharth 4db9ae7aa3 oops 
llvm-svn: 24432
 2005-11-20 21:42:49 +00:00
Andrew Lenharth c943f6bfae check that rdtsc is generated from readcyclecounter 
llvm-svn: 24431
 2005-11-20 21:41:59 +00:00
Andrew Lenharth 0bf68ae434 The second patch of X86 support for read cycle counter. 
llvm-svn: 24430
 2005-11-20 21:41:10 +00:00
Andrew Lenharth 627cbd49b1 The first patch of X86 support for read cycle counter 
llvm-svn: 24429
 2005-11-20 21:32:07 +00:00
Chris Lattner a8d37d748f more progress towards bug 291 being finished. Patch by Owen Anderson, 
HAVE_GV case fixed up by me.

llvm-svn: 24428
 2005-11-20 03:45:52 +00:00
Chris Lattner 19baba67b5 Unbreak codegen of bools. This should fix the llc/jit/llc-beta failures 
from last night.

llvm-svn: 24427
 2005-11-19 18:40:42 +00:00
Chris Lattner f2807be3da Initialize this variable on all paths, fixing a crasher in windows. Thanks 
to JeffC for pointing this out.

llvm-svn: 24426
 2005-11-19 07:48:33 +00:00
Chris Lattner 377bdbff91 Improve Selection DAG printer portability. Patch by Owen Anderson! 
llvm-svn: 24425
 2005-11-19 07:44:09 +00:00
Chris Lattner 6bc0304c91 Teach tblgen about instruction operands that have multiple MachineInstr 
operands, digging into them to find register values (used on X86).  Patch
by Evan Cheng!

llvm-svn: 24424
 2005-11-19 07:05:57 +00:00
Chris Lattner d7102c4980 Teach the x86 backend about the register constraints of its addressing mode. 
Patch by Evan Cheng

llvm-svn: 24423
 2005-11-19 07:01:30 +00:00
Chris Lattner 252d88c68e Capture more operand info, patch by Evan Cheng 
llvm-svn: 24422
 2005-11-19 07:00:10 +00:00
Chris Lattner a22eae0163 Teach the graph viewer to handle register operands that are zero. 
llvm-svn: 24421
 2005-11-19 06:58:46 +00:00
Chris Lattner 301015a703 Silence a bogus warning 
llvm-svn: 24420
 2005-11-19 05:51:46 +00:00
Chris Lattner 3f0f71b92b Add load and other support to the dag-dag isel. Patch contributed by Evan 
Cheng!

llvm-svn: 24419
 2005-11-19 02:11:08 +00:00
Chris Lattner f090f7eb0e Add some method variants, patch by Evan Cheng 
llvm-svn: 24418
 2005-11-19 01:44:53 +00:00
Chris Lattner 8e28ce9f94 Add two new construction methods, patch by Evan Cheng 
llvm-svn: 24417
 2005-11-19 01:42:10 +00:00
Nate Begeman b2e089c31b Teach LLVM how to scalarize packed types. Currently, this only works on 
packed types with an element count of 1, although more generic support is
coming.  This allows LLVM to turn the following code:

void %foo(<1 x float> * %a) {
entry:
  %tmp1 = load <1 x float> * %a;
  %tmp2 = add <1 x float> %tmp1, %tmp1
  store <1 x float> %tmp2, <1 x float> *%a
  ret void
}

Into:

_foo:
        lfs f0, 0(r3)
        fadds f0, f0, f0
        stfs f0, 0(r3)
        blr

llvm-svn: 24416
 2005-11-19 00:36:38 +00:00
Chris Lattner 26904c7ac9 testcase for recent indvars patches 
llvm-svn: 24415
 2005-11-18 19:38:15 +00:00
Chris Lattner 9c37f23645 Fix a crash building 176.gcc due to my recent patch, which only fixed 
half the problem.

llvm-svn: 24414
 2005-11-18 18:30:47 +00:00
Andrew Lenharth 6bc51c6f34 prevent latent switch creation 
llvm-svn: 24413
 2005-11-18 13:57:03 +00:00
Nate Begeman 127321b14c Split out the shift code from visitBinary. 
llvm-svn: 24412
 2005-11-18 07:42:56 +00:00
Chris Lattner 3e9e8bd25c Implement a refinement to the mem2reg algorithm for cases where an alloca 
has a single def.  In this case, look for uses that are dominated by the def
and attempt to rewrite them to directly use the stored value.

This speeds up mem2reg on these values and reduces the number of phi nodes
inserted.  This should address PR665.

llvm-svn: 24411
 2005-11-18 07:31:42 +00:00
Chris Lattner 31dc3827d3 This needs proper dominance 
llvm-svn: 24410
 2005-11-18 07:29:44 +00:00
Chris Lattner b14c41378d post-dom-frontiers requires proper post-dominance 
llvm-svn: 24409
 2005-11-18 07:28:26 +00:00
Chris Lattner f519d1c6ef This requires proper dominance 
llvm-svn: 24408
 2005-11-18 07:27:53 +00:00
Chris Lattner 9705c1b655 Fix the dominates method to return true if the two nodes are the same. Add 
a new properlyDominates method to do what the old one did.

llvm-svn: 24407
 2005-11-18 07:27:33 +00:00
Chris Lattner 57ce97862d add more patterns, patch by Evan Cheng. 
llvm-svn: 24406
 2005-11-18 01:04:42 +00:00
Nate Begeman 227f1bdd2f Also add the new vector value type here, for completeness. 
llvm-svn: 24405
 2005-11-18 00:53:32 +00:00
Nate Begeman 3c40f074ff Teach the type lowering code about turning packed types into vector types. 
Next step: generating vector dag nodes, and legalizing them into scalar
code.

llvm-svn: 24404
 2005-11-17 21:44:42 +00:00
Chris Lattner cdde9990b7 only use dyld stubs if not in ppc-static mode. This completes support for 
non-static codegen.

llvm-svn: 24403
 2005-11-17 19:40:30 +00:00
Chris Lattner bca0be812d This was checking the wrong GEP expression. Fixing this fixes a gccas crash 
compiling mysql reported by Ted Kremenek.

llvm-svn: 24402
 2005-11-17 19:35:42 +00:00
Chris Lattner 6ab87fa360 refactor call operand handling to eliminate special cases from printOp. 
llvm-svn: 24401
 2005-11-17 19:25:59 +00:00
Chris Lattner bd9efdb64c disentangle call operands from branch operands a bit 
llvm-svn: 24400
 2005-11-17 19:16:08 +00:00
Chris Lattner 3570cf456b add an option to generate completely non-pic code, corresponding to what 
gcc -static produces on PPC.  This is used for building kexts and other things.

With this, materializing the address of a global looks like:

        lis r2, ha16(L_H$non_lazy_ptr)
        la r3, lo16(L_H$non_lazy_ptr)(r2)

we're still emitting stubs for functions, which is wrong.  That is next.

llvm-svn: 24399
 2005-11-17 18:55:48 +00:00
Chris Lattner 8f8ed28a64 Fix a bug that resistor on IRC hit where we tried to create token factor 
nodes of load results, not of their chain results.

llvm-svn: 24398
 2005-11-17 18:30:17 +00:00
Chris Lattner 5aba6ae3b3 Enable global address legalization, fixing a todo and allowing the removal 
of some code.  This exposes the implicit load from the stubs to the DAG, allowing
them to be optimized by the dag combiner.  It also moves darwin specific stuff
out of the isel into the legalizer, and allows more to be moved to the .td file.

llvm-svn: 24397
 2005-11-17 18:26:56 +00:00
Chris Lattner 0fe88e3f32 Teach the selector to fold lo(g) into load instruction immediate fields 
llvm-svn: 24396
 2005-11-17 18:02:16 +00:00
Chris Lattner 4b11fa284d Generate LA and ADDIS when possible. 
llvm-svn: 24395
 2005-11-17 17:52:01 +00:00
Chris Lattner 3648c20472 Use the right accessor to create this node 
llvm-svn: 24394
 2005-11-17 17:51:38 +00:00