Chris Lattner
7a7ed0274d
Add support for the undef value. Implement a new optimization based on globals
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that are initialized with undef. When promoting malloc to a global, start out
initialized to undef
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17042 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-16 18:09:00 +00:00
Chris Lattner
b976e66816
Add support for undef and unreachable
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17041 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-16 18:08:06 +00:00
Chris Lattner
b9f18592a6
Implement UndefValue class
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17040 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-16 18:07:16 +00:00
Chris Lattner
b7a16ce3b1
Add a missing dependency
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17031 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-16 17:12:55 +00:00
Chris Lattner
f146ab1e51
Fix file header
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17030 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-16 16:37:42 +00:00
Chris Lattner
a35339dfb6
Be more careful about looking for constants when we really want constantint's.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17029 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-16 16:07:10 +00:00
Chris Lattner
795948a5d1
Move the implementation of the instructions clone methods to this file so
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that the vtables for these classes are only instantiated in this translation
unit, not in every xlation unit they are used.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17026 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-15 23:52:53 +00:00
Chris Lattner
f91d68be8d
There is no reason not to build these in parallel
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17023 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-15 23:22:15 +00:00
Misha Brukman
961ca77e5b
Add a space between the type and name of value when printing error message
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17022 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-15 23:08:50 +00:00
Chris Lattner
4a8167fe5c
Don't print a bunch of metrics that are meaningless for external functions
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17017 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-15 19:40:31 +00:00
Chris Lattner
358a9027a8
Instruction select globals with offsets better. For example, on this test
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case:
int C[100];
int foo() {
return C[4];
}
We now codegen:
foo:
mov %EAX, DWORD PTR [C + 16]
ret
instead of:
foo:
mov %EAX, OFFSET C
mov %EAX, DWORD PTR [%EAX + 16]
ret
Other impressive features may be coming later.
This patch is contributed by Jeff Cohen!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17011 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-15 05:05:29 +00:00
Chris Lattner
8cce7cd0ae
Give the X86 JIT the ability to encode global+disp constants. Patch
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contributed by Jeff Cohen!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17010 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-15 04:53:13 +00:00
Chris Lattner
d416f086cc
Give the X86 asm printer the ability to print out addressing modes that have
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constant displacements from global variables. Patch by Jeff Cohen!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17009 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-15 04:44:53 +00:00
Chris Lattner
fb3d844e50
Allow X86 addressing modes to represent globals with offsets. Patch contributed
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by Jeff Cohen!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17008 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-15 04:43:20 +00:00
Chris Lattner
ca4f6ebefc
Allow machine operands to represent global variables with offsets. This is
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useful when you have a reference like:
int A[100];
void foo() { A[10] = 1; }
In this case, &A[10] is a single constant and should be treated as such.
Only MO_GlobalAddress and MO_ExternalSymbol are allowed to use this field, no
other operand type is.
This is another fine patch contributed by Jeff Cohen!!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17007 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-15 04:38:41 +00:00
Chris Lattner
47eb6567e2
This patch fixes the nasty bug that caused 175.vpr to fail for X86 last night.
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The problem occurred when trying to reload this instruction:
MOV32mr %reg2326, 8, %reg2297, 4, %reg2295
The value of reg2326 was available in EBX, so it was reused from there, instead
of reloading it into EDX.
The value of reg2297 was available in EDX, so it was reused from there, instead
of reloading it into EDI.
The value of reg2295 was not available, so we tried reloading it into EBX, its
assigned register. However, we checked and saw that we already reloaded
something into EBX, so we chose what reg2326 was assigned to (EDX) and reloaded
into that register instead.
Unfortunately EDX had already been used by reg2297, so reloading into EDX
clobbered the value used by the reg2326 operand, breaking the program.
The fix for this is to check that the newly picked register is ok. In this
case we now find that EDX is already used and try using EDI, which succeeds.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17006 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-15 03:19:31 +00:00
Chris Lattner
8df6a594d2
This patch adds and improves debugging output. No functionality changes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17005 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-15 03:16:29 +00:00
Nate Begeman
e0c83a86b0
Better codegen of binary integer ops with 32 bit immediate operands.
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This transformation fires a few dozen times across the testsuite.
For example, int test2(int X) { return X ^ 0x0FF00FF0; }
Old:
_test2:
lis r2, 4080
ori r2, r2, 4080
xor r3, r3, r2
blr
New:
_test2:
xoris r3, r3, 4080
xori r3, r3, 4080
blr
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17004 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-15 00:50:19 +00:00
Misha Brukman
d36047dbdb
The field is called imm22', not simply
imm'
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17003 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-14 22:33:32 +00:00
Misha Brukman
3df04c58fc
Synthetic instructions RET and RETL need to have all 3 parameters specified
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17002 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-14 22:32:49 +00:00
Misha Brukman
45a68268a4
Class F2_1 already inherits the imm22 field from class F2
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17001 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-14 22:32:24 +00:00
Misha Brukman
009d3f400c
Generate the SparcV8 code emitter from .td files
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17000 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-14 21:57:19 +00:00
Misha Brukman
17187e936a
* In the F3_1 class, default asi to 0 because it's not currently used
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* In the F3_3 class, remove mention of asi because it's not part of the format
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16999 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-14 21:53:39 +00:00
Chris Lattner
b23cd2f688
Fix a bug John tracked down in libstdc++ where we were incorrectly deleting
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weak functions. Thanks for finding this John!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16997 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-14 19:53:50 +00:00
Brian Gaeke
59e12ed789
Add FSTOI, FDTOI (fp to integer cast) instructions.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16996 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-14 19:39:35 +00:00
Brian Gaeke
8b6c1ff677
Rewrite emitCastOperation, refactoring parts of it into emitIntegerCast, and
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adding emitFPToIntegerCast.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16995 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-14 19:39:34 +00:00
Brian Gaeke
941833a37c
Add list of libc procedures we'll use, at some point.
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Update list of currently failing tests.
ADJCALLSTACK* support is done.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16994 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-14 19:39:33 +00:00
Chris Lattner
a06b3af2fe
Make sure any client of Dominators.h links in Dominators.cpp
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Patch by Morten Ofstad
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16987 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-14 15:47:16 +00:00
Chris Lattner
979c38ba20
Do not use the same variable name for two different variables in the
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same scope. This confused VC++ (and probably people too!). Patch by
Morten Ofstad!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16985 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-14 14:59:16 +00:00
Misha Brukman
c982cfad87
* Claim to support machine code emission - return false from
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addPassesToEmitMachineCode()
* Add support for registers and constants in getMachineOpValue()
This enables running "int main() { ret 0 }" via the PowerPC JIT.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16983 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-14 06:39:56 +00:00
Misha Brukman
d37faba5b4
* Include the real (generated) version of getBinaryCodeForInstr()
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* Add implementation of getMachineOpValue() for generated code emitter
* Convert assert()s in unimplemented functions to abort()s so that non-debug
builds fail predictably
* Add file header comments
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16981 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-14 06:07:25 +00:00
Misha Brukman
bab2adf496
* Make a PPC32-specific code emitter because we have separate classes for 32-
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and 64-bit code emitters that cannot share code unless we use virtual
functions
* Identify components being built by tablegen with more detail by assigning them
to PowerPC, PPC32, or PPC64 more specifically; also avoids seeing 'building
PowerPC XYZ' messages twice, where one is for PPC32 and one for PPC64
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16980 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-14 06:04:56 +00:00
Tanya Lattner
a645750722
Checking in code that works on my simple test case. However, there is still a bug with branches that I need to fix.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16979 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-14 06:04:28 +00:00
Misha Brukman
a671f3b1d4
There is only one field in an instruction, and that is `Inst', the final view of
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the instruction binary format, all others are simply operands and should not
have the `field' label
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16978 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-14 05:55:37 +00:00
Misha Brukman
315d3341fd
PowerPC instruction definitions use LittleEndian-style encoding [0..31]
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16977 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-14 05:54:38 +00:00
Misha Brukman
99ee67ab19
Add isLittleEndianEncoding to InstrInfo class, defaults to `off'
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16976 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-14 05:53:40 +00:00
Chris Lattner
9c07866ef8
When converting phi nodes into select instructions, we shouldn't promote PHI
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nodes unless we KNOW that we are able to promote all of them.
This fixes: test/Regression/Transforms/SimplifyCFG/PhiNoEliminate.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16973 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-14 05:13:36 +00:00
Reid Spencer
83d3aad50e
Allow this file to compile on Darwin.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16971 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-14 03:33:25 +00:00
Reid Spencer
8af3ed0354
Use __MINGW instead of __MING. Patch contributed by Henrik Bach.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16970 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-14 03:09:02 +00:00
Reid Spencer
7d5ec231ca
Get proper BSD #includes for MappedFile implementation.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16969 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-14 03:06:59 +00:00
Reid Spencer
8545fc151e
Implementation of MappedFile for Win32. Patch provided by Jeff Cohen.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16968 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-14 03:05:59 +00:00
Chris Lattner
f74acc7669
Today is not my day. Fix broken #
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16967 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-14 02:31:35 +00:00
Chris Lattner
823cacc276
unbreak previous checkin :(
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16966 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-14 02:06:48 +00:00
Chris Lattner
84d1ced4a9
Add back a missing paren
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16965 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-14 01:57:28 +00:00
Chris Lattner
1c765b0037
Fit to 80 cols
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16964 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-14 01:49:34 +00:00
Chris Lattner
f9d7178ba8
Wrap to 80 cols, delete some seriously old debugging printouts
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16963 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-14 01:46:07 +00:00
Chris Lattner
4a242b32f6
Fit in 80 columns
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16962 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-14 01:39:18 +00:00
Chris Lattner
b0bf6643b0
Minor cleanups
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16961 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-14 01:35:17 +00:00
Reid Spencer
d96cb6eaa0
Update to reflect changes in Makefile rules.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16950 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-13 11:46:52 +00:00
Chris Lattner
15d879e139
Minor cleanups:
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* fit in 80 lines
* Eliminate extra namespaces
* Drop llvm::
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16935 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-12 16:52:09 +00:00