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9160 Commits

Author SHA1 Message Date
Chris Lattner
5244a770c3 Adjust to changes in User class. Aggregate constants now must explicitly 
manage their operands.

llvm-svn: 19890
 2005-01-29 00:34:39 +00:00
Chris Lattner
a0498b9190 This file is now merged into Instructions.cpp 
llvm-svn: 19889
 2005-01-29 00:33:32 +00:00
Andrew Lenharth
8a3a14d343 fix ExprMap, partially teach about add long 
llvm-svn: 19882
 2005-01-28 23:17:54 +00:00
Chris Lattner
f893f17907 Fix a nasty thinko in my previous commit. 
llvm-svn: 19881
 2005-01-28 23:17:27 +00:00
Chris Lattner
2755fb4171 Alpha doesn't have a native f32 extload instruction. 
llvm-svn: 19880
 2005-01-28 22:58:25 +00:00
Chris Lattner
da7b5277c1 implement legalization of truncates whose results and sources need to be 
truncated, e.g. (truncate:i8 something:i16) on a 32 or 64-bit RISC.

llvm-svn: 19879
 2005-01-28 22:52:50 +00:00
Chris Lattner
89cac82479 Get alpha working with memset/memcpy/memmove 
llvm-svn: 19878
 2005-01-28 22:29:18 +00:00
Chris Lattner
b035ec4a9c * add some DEBUG statements 
* Properly compile this:

struct a {};
int test() {
  struct a b[2];
  if (&b[0] != &b[1])
    abort ();
  return 0;
}

to 'return 0', not abort().

llvm-svn: 19875
 2005-01-28 19:32:01 +00:00
Chris Lattner
f24ea9cf5e Fix ConstProp/2005-01-28-SetCCGEP.ll: indexing over zero sized elements does 
not change the address.

llvm-svn: 19874
 2005-01-28 19:09:51 +00:00
Andrew Lenharth
9db35b0763 fix ExprMap and constant check in setcc 
llvm-svn: 19870
 2005-01-28 14:06:46 +00:00
Andrew Lenharth
4cfda09ee9 move FP into it's own select 
llvm-svn: 19867
 2005-01-28 06:57:18 +00:00
Chris Lattner
4134789c8f CopyFromReg produces two values. Make sure that we remember that both are 
legalized, and actually return the correct result when we legalize the chain first.

llvm-svn: 19866
 2005-01-28 06:27:38 +00:00
Chris Lattner
fadcc07232 Remove this code as it is currently completely broken and unmaintained. 
If needed, this can be resurrected from CVS.

Note that several of the interfaces (e.g. the IPModRef ones) are supersumed
by generic AliasAnalysis interfaces that have been written since this code
was developed (and they are not DSA specific).

llvm-svn: 19864
 2005-01-28 06:12:46 +00:00
Jeff Cohen
df055196d4 Properly close mapped files. 
llvm-svn: 19863
 2005-01-28 01:17:07 +00:00
Andrew Lenharth
c0cd77a1a0 stack frame fix and zero FP reg fix 
llvm-svn: 19857
 2005-01-27 08:31:19 +00:00
Andrew Lenharth
55eadc4772 Floating point instructions like Floating point registers 
llvm-svn: 19856
 2005-01-27 07:58:15 +00:00
Andrew Lenharth
67328d7fac int to float conversion and another setcc 
llvm-svn: 19855
 2005-01-27 07:50:35 +00:00
Misha Brukman
b0fce1668a Fix grammar 
llvm-svn: 19854
 2005-01-27 06:46:38 +00:00
Andrew Lenharth
4283bf1216 teach isel about comparison with constants and zero extending bits 
llvm-svn: 19853
 2005-01-27 03:49:45 +00:00
Jeff Cohen
1502dd24d9 Fix some Path bugs 
llvm-svn: 19852
 2005-01-27 03:49:03 +00:00
Andrew Lenharth
b539dd2c83 perhaps this will let me have calls again 
llvm-svn: 19851
 2005-01-27 01:22:48 +00:00
Andrew Lenharth
227bc0e21a minor bug fix 
llvm-svn: 19850
 2005-01-27 00:52:26 +00:00
Andrew Lenharth
ae8ce1856a minor bug fix 
llvm-svn: 19849
 2005-01-27 00:51:05 +00:00
Andrew Lenharth
11fc660a34 added instructions for fp to int to fp moves 
llvm-svn: 19848
 2005-01-26 23:56:48 +00:00
Andrew Lenharth
1f0b710fb6 initial fp support 
llvm-svn: 19847
 2005-01-26 21:54:09 +00:00
Andrew Lenharth
f9f01c190b hum, writing on one machine, testing on another... 
llvm-svn: 19844
 2005-01-26 02:53:56 +00:00
Andrew Lenharth
53ad9ac1db add some operations, fix others. should compile several more tests now 
llvm-svn: 19843
 2005-01-26 01:24:38 +00:00
Chris Lattner
ab92b92bc5 We can fold promoted and non-promoted loads into divs also! 
llvm-svn: 19835
 2005-01-25 20:35:10 +00:00
Chris Lattner
a9a0369879 Fold promoted loads into binary ops for FP, allowing us to generate m32 forms 
of FP ops.

llvm-svn: 19834
 2005-01-25 20:03:11 +00:00
Andrew Lenharth
4e10c17eeb problems with bools, and their work arounds 
llvm-svn: 19833
 2005-01-25 19:58:40 +00:00
Alkis Evlogimenos
eb6bfe9cee Add a dependency to the trace library so that it gets pulled in 
automatically.

llvm-svn: 19828
 2005-01-25 16:23:57 +00:00
Andrew Lenharth
3ae267eb3b more load choices, better add with imm 
llvm-svn: 19821
 2005-01-25 00:35:34 +00:00
Chris Lattner
f03b87704f Make -ds-aa more useful, allowing it to be updated as xforms hack on the program. 
llvm-svn: 19818
 2005-01-24 20:00:14 +00:00
Andrew Lenharth
3b44cfa26d Clean ups, and taught the instruction selector about immediate forms 
llvm-svn: 19816
 2005-01-24 19:44:07 +00:00
Andrew Lenharth
3c6e50e63b Alpha JIT prune 
llvm-svn: 19815
 2005-01-24 18:48:22 +00:00
Andrew Lenharth
ae874f0d85 include prune and JIT prune 
llvm-svn: 19814
 2005-01-24 18:45:41 +00:00
Andrew Lenharth
e3991f8256 Pruned includes 
llvm-svn: 19813
 2005-01-24 18:37:48 +00:00
Chris Lattner
88a4c43e67 Fix a spurious warning. 
llvm-svn: 19799
 2005-01-24 01:40:18 +00:00
Chris Lattner
6ff85c3152 Silence a warning. 
llvm-svn: 19798
 2005-01-23 23:20:06 +00:00
Chris Lattner
849899e193 Silence optimized warnings. 
llvm-svn: 19797
 2005-01-23 23:19:44 +00:00
Chris Lattner
94952e0947 Allow the FP stackifier to completely ignore functions that do not use FP at 
all.  This should speed up the X86 backend fairly significantly on integer
codes.  Now if only we didn't have to compute livevar still... ;-)

llvm-svn: 19796
 2005-01-23 23:13:59 +00:00
Chris Lattner
65fc8007cd Simplify/speedup the PEI by not having to scan for uses of the callee saved 
registers.  This information is computed directly by the register allocator
now.

llvm-svn: 19795
 2005-01-23 23:13:12 +00:00
Chris Lattner
556679b89d Update physregsused info. 
llvm-svn: 19793
 2005-01-23 22:55:45 +00:00
Chris Lattner
cc22be2981 Update this pass to set PhysRegsUsed info in MachineFunction. 
llvm-svn: 19792
 2005-01-23 22:51:56 +00:00
Chris Lattner
964297fc32 Update these register allocators to set the PhysRegUsed info in MachineFunction. 
llvm-svn: 19791
 2005-01-23 22:45:13 +00:00
Chris Lattner
6a6d5cf9eb Add support for the PhysRegsUsed array. 
llvm-svn: 19789
 2005-01-23 22:13:58 +00:00
Chris Lattner
c187b917f2 Speed this up a bit by making ModifiedRegs a vector<char> not vector<bool> 
llvm-svn: 19787
 2005-01-23 21:45:01 +00:00
Chris Lattner
ab2ab313d3 Get rid of a several dozen more and instructions in specint. 
llvm-svn: 19786
 2005-01-23 20:26:55 +00:00
Chris Lattner
ab1804175d Fix crash comparing empty file against nonempty file. 
llvm-svn: 19782
 2005-01-23 06:02:40 +00:00
Chris Lattner
b3a5fc3ec0 Adjust to changes in SelectionDAG interfaces 
The first half of correct chain insertion for libcalls. This is not enough
to fix Fhourstones yet though.

llvm-svn: 19781
 2005-01-23 04:42:50 +00:00
Chris Lattner
3165569ba9 Remove the 3 HACK HACK HACKs I put in before, fixing them properly with 
the new TLI that is available.

Implement support for handling out of range shifts.  This allows us to
compile this code (a 64-bit rotate):

unsigned long long f3(unsigned long long x) {
  return (x << 32) | (x >> (64-32));
}

into this:

f3:
        mov %EDX, DWORD PTR [%ESP + 4]
        mov %EAX, DWORD PTR [%ESP + 8]
        ret

GCC produces this:

$ gcc t.c -masm=intel -O3 -S -o - -fomit-frame-pointer
..
f3:
        push    %ebx
        mov     %ebx, DWORD PTR [%esp+12]
        mov     %ecx, DWORD PTR [%esp+8]
        mov     %eax, %ebx
        mov     %edx, %ecx
        pop     %ebx
        ret

The Simple ISEL produces (eww gross):

f3:
        sub %ESP, 4
        mov DWORD PTR [%ESP], %ESI
        mov %EDX, DWORD PTR [%ESP + 8]
        mov %ECX, DWORD PTR [%ESP + 12]
        mov %EAX, 0
        mov %ESI, 0
        or %EAX, %ECX
        or %EDX, %ESI
        mov %ESI, DWORD PTR [%ESP]
        add %ESP, 4
        ret

llvm-svn: 19780
 2005-01-23 04:39:44 +00:00
Chris Lattner
4c997d281c Adjust to changes in SelectionDAG interface. 
llvm-svn: 19779
 2005-01-23 04:36:26 +00:00
Chris Lattner
680bc75f7f Build Alpha by default. 
llvm-svn: 19777
 2005-01-23 04:34:46 +00:00
Reid Spencer
e48557f583 Fix alloca support for Cygwin. On cygwin its __alloca not __builtin_alloca 
llvm-svn: 19776
 2005-01-23 04:32:47 +00:00
Reid Spencer
5c7b6e83f0 Support Cygwin assembly generation. The cygwin version of Gnu ASsembler 
doesn't support certain directives and symbols on cygwin are prefixed with
an underscore. This patch makes the necessary adjustments to the output.

llvm-svn: 19775
 2005-01-23 03:52:14 +00:00
Chris Lattner
331670eb3e Make DiffFilesWithTolerance take sys::Path's instead of std::strings 
Delete dead functions.

llvm-svn: 19771
 2005-01-23 03:31:02 +00:00
Chris Lattner
ea7baf8d9f Fix a bug in previous checkin 
llvm-svn: 19769
 2005-01-23 03:19:13 +00:00
Chris Lattner
dcf389fb90 Add a new method, refactored out of fpcmp 
llvm-svn: 19766
 2005-01-23 03:13:43 +00:00
Andrew Lenharth
f5b9a8fe57 Let me introduce you to the early stages of the llvm backend for the alpha processor 
llvm-svn: 19764
 2005-01-22 23:41:55 +00:00
Chris Lattner
63ec3c402b Get this to work for 64-bit systems. 
llvm-svn: 19763
 2005-01-22 23:04:37 +00:00
Jeff Cohen
7311de2af2 Use binary mode for reading/writing bytecode files 
llvm-svn: 19751
 2005-01-22 17:36:17 +00:00
Jeff Cohen
66b5805c50 Fix destroyDirectory bug 
llvm-svn: 19746
 2005-01-22 16:28:33 +00:00
Chris Lattner
29d6389d78 Implicitly defined registers can clobber callee saved registers too! 
This fixes the return-address-not-being-saved problem in the Alpha backend.

llvm-svn: 19741
 2005-01-22 00:49:16 +00:00
Chris Lattner
97f35a7a07 More bugfixes for IA64 shifts. 
llvm-svn: 19739
 2005-01-22 00:33:03 +00:00
Chris Lattner
67deea9d05 Fix problems with non-x86 targets. 
llvm-svn: 19738
 2005-01-22 00:31:52 +00:00
Chris Lattner
42e239ed58 Add a nasty hack to fix Alpha/IA64 multiplies by a power of two. 
llvm-svn: 19737
 2005-01-22 00:20:42 +00:00
Chris Lattner
e724100870 Remove unneeded line. 
llvm-svn: 19736
 2005-01-21 23:43:12 +00:00
Chris Lattner
a974e215a5 test commit 
llvm-svn: 19735
 2005-01-21 23:38:56 +00:00
Chris Lattner
151c8e6390 Handle comparisons of gep instructions that have different typed indices 
as long as they are the same size.

llvm-svn: 19734
 2005-01-21 23:06:49 +00:00
Chris Lattner
b4cf4ffb04 Speed up folding operations into loads. 
llvm-svn: 19733
 2005-01-21 21:43:02 +00:00
Chris Lattner
fd4d7f71ae The ever-important vanity pass name :) 
llvm-svn: 19731
 2005-01-21 21:35:14 +00:00
Chris Lattner
24bf1ca350 If the interpreter tries to execute an external function, kill it. Of course 
since we are dirty, special case __main.  This should fix the infinite loop
horrible stuff that happens on linux-alpha when configuring llvm-gcc.  It
might also help cygwin, who knows??

llvm-svn: 19729
 2005-01-21 19:59:37 +00:00
Chris Lattner
5f2fbeaa69 Fix a FIXME: realize that argument stores are all independent (don't alias) 
llvm-svn: 19728
 2005-01-21 19:46:38 +00:00
Chris Lattner
392ddf430b Unary token factor nodes are unneeded. 
llvm-svn: 19727
 2005-01-21 18:01:22 +00:00
Chris Lattner
07c35617d5 Refactor libcall code a bit. Initial implementation of expanding int -> FP 
operations for 64-bit integers.

llvm-svn: 19724
 2005-01-21 06:05:23 +00:00
Chris Lattner
6258ec2e1d Simplify the shift-expansion code. 
llvm-svn: 19721
 2005-01-20 20:29:23 +00:00
Chris Lattner
febeb380ae Implement ADD_PARTS/SUB_PARTS so that 64-bit integer add/sub work. This 
fixes most of the remaining llc-beta failures.

llvm-svn: 19716
 2005-01-20 18:53:00 +00:00
Chris Lattner
c95c7c90c9 Expand add/sub into ADD_PARTS/SUB_PARTS instead of a non-existant libcall. 
llvm-svn: 19715
 2005-01-20 18:52:28 +00:00
Chris Lattner
4086a7a803 implement add_parts/sub_parts. 
llvm-svn: 19714
 2005-01-20 18:50:55 +00:00
Chris Lattner
e7ce5d0e4c Add missing entry. 
llvm-svn: 19712
 2005-01-20 17:32:28 +00:00
Chris Lattner
8b0a2a3251 Fix a crash compiling 134.perl. 
llvm-svn: 19711
 2005-01-20 16:50:16 +00:00
Chris Lattner
e5212a16a2 Support targets that do not use i8 shift amounts. 
llvm-svn: 19707
 2005-01-19 22:31:21 +00:00
Chris Lattner
5a9660aa71 Add two optimizations. The first folds (X+Y)-X -> Y 
The second folds operations into selects, e.g. (select C, (X+Y), (Y+Z))
-> (Y+(select C, X, Z)

This occurs a few times across spec, e.g.

         select    add/sub
mesa:    83        0
povray:  5         2
gcc      4         2
parser   0         22
perlbmk  13        30
twolf    0         3

llvm-svn: 19706
 2005-01-19 21:50:18 +00:00
Chris Lattner
0e7435bc5b Add an assertion that would have made more sense to duraid 
llvm-svn: 19704
 2005-01-19 21:32:07 +00:00
Chris Lattner
c662697319 Add support for targets that pass args in registers to calls. 
llvm-svn: 19703
 2005-01-19 20:24:35 +00:00
Chris Lattner
277ac2be70 Fold single use token factor nodes into other token factor nodes. 
llvm-svn: 19701
 2005-01-19 19:10:54 +00:00
Chris Lattner
85e0771f79 Realize the individual pieces of an expanded copytoreg/store/load are 
independent of each other.

llvm-svn: 19700
 2005-01-19 18:02:17 +00:00
Chris Lattner
027c97e93e Know some identities about tokenfactor nodes. 
llvm-svn: 19699
 2005-01-19 18:01:40 +00:00
Chris Lattner
7114e8a527 Know some simple identities. This improves codegen for (1LL << N). 
llvm-svn: 19698
 2005-01-19 17:29:49 +00:00
Chris Lattner
6534e1ede3 Fix a problem where were were literally selecting for INCREASED register 
pressure, not decreases register pressure.  Fix problem where we accidentally
swapped the operands of SHLD, which caused fourinarow to fail.  This fixes
fourinarow.

llvm-svn: 19697
 2005-01-19 17:24:34 +00:00
Chris Lattner
e97ed92617 Just in case, handle something that is both a use and a def. 
llvm-svn: 19696
 2005-01-19 17:11:51 +00:00
Chris Lattner
2cb11bd2b9 When an instruction moves, make sure to update the VarInfo::Kills list as 
well as all of teh other stuff in livevar. This fixes the compiler crash
on fourinarow last night.

llvm-svn: 19695
 2005-01-19 17:09:15 +00:00
Chris Lattner
b75589131d When commuting these instructions, make sure to actually swap the operands too. 
llvm-svn: 19694
 2005-01-19 16:55:52 +00:00
Chris Lattner
302ea8908d Fix 'raise' to work with packed types. Patch by Morten Ofstad. 
llvm-svn: 19693
 2005-01-19 16:16:35 +00:00
Chris Lattner
fde1a5688b Implement Regression/CodeGen/X86/rotate.ll: emit rotate instructions (which 
typically cost 1 cycle) instead of shld/shrd instruction (which are typically
6 or more cycles).  This also saves code space.

For example, instead of emitting:

rotr:
        mov %EAX, DWORD PTR [%ESP + 4]
        mov %CL, BYTE PTR [%ESP + 8]
        shrd %EAX, %EAX, %CL
        ret
rotli:
        mov %EAX, DWORD PTR [%ESP + 4]
        shrd %EAX, %EAX, 27
        ret

Emit:

rotr32:
        mov %CL, BYTE PTR [%ESP + 8]
        mov %EAX, DWORD PTR [%ESP + 4]
        ror %EAX, %CL
        ret
rotli32:
        mov %EAX, DWORD PTR [%ESP + 4]
        ror %EAX, 27
        ret

We also emit byte rotate instructions which do not have a sh[lr]d counterpart
at all.

llvm-svn: 19692
 2005-01-19 08:07:05 +00:00
Chris Lattner
34757ff939 Add rotate instructions. 
llvm-svn: 19690
 2005-01-19 07:50:03 +00:00
Chris Lattner
e539ce8223 Match 16-bit shld/shrd instructions as well, implementing shift-double.llx:test5 
llvm-svn: 19689
 2005-01-19 07:37:26 +00:00
Chris Lattner
9d5ee289d7 Improve coverage of the X86 instruction set by adding 16-bit shift doubles. 
llvm-svn: 19687
 2005-01-19 07:31:24 +00:00
Chris Lattner
c03f360215 Teach the code generator that shrd/shld is commutable if it has an immediate. 
This allows us to generate this:

foo:
        mov %EAX, DWORD PTR [%ESP + 4]
        mov %EDX, DWORD PTR [%ESP + 8]
        shld %EDX, %EDX, 2
        shl %EAX, 2
        ret

instead of this:

foo:
        mov %EAX, DWORD PTR [%ESP + 4]
        mov %ECX, DWORD PTR [%ESP + 8]
        mov %EDX, %EAX
        shrd %EDX, %ECX, 30
        shl %EAX, 2
        ret

Note the magically transmogrifying immediate.

llvm-svn: 19686
 2005-01-19 07:11:01 +00:00
Chris Lattner
408325ffdf Use the TargetInstrInfo::commuteInstruction method to commute instructions 
instead of doing it manually.

llvm-svn: 19685
 2005-01-19 07:08:42 +00:00