Chris Lattner
5d06b8caae
Implement a FIXME: move a bunch of cruft for handling FP_TO_*INT operations
...
that the X86 does not support to the legalizer. This allows it to be better
optimized, etc, and will help with SSE support.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22551 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-29 01:00:29 +00:00
Chris Lattner
f7443dace5
Don't forget to diddle with the control word when performing an FISTP64.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22550 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-29 00:54:34 +00:00
Chris Lattner
745d538119
Use a custom expander to compile this:
...
long %test4(double %X) {
%tmp.1 = cast double %X to long ; <long> [#uses=1]
ret long %tmp.1
}
to this:
_test4:
sub %ESP, 12
fld QWORD PTR [%ESP + 16]
fistp QWORD PTR [%ESP]
mov %EDX, DWORD PTR [%ESP + 4]
mov %EAX, DWORD PTR [%ESP]
add %ESP, 12
ret
instead of this:
_test4:
sub %ESP, 28
fld QWORD PTR [%ESP + 32]
fstp QWORD PTR [%ESP]
call ___fixdfdi
add %ESP, 28
ret
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22549 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-29 00:40:01 +00:00
Andrew Lenharth
98169be50b
support bsr, and more .td simplification
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22543 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-28 18:14:47 +00:00
Andrew Lenharth
a4433e1b31
get lazy JITing working. Some of shootout runs now
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22538 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-28 12:45:20 +00:00
Chris Lattner
988b1dd608
Eliminate an extra copy from R1 that Nate noticed on function calls that
...
have to write arguments to the stack
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22536 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-28 05:23:43 +00:00
Chris Lattner
4015ea8711
Specify the correct number of operands
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22535 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-28 04:42:11 +00:00
Nate Begeman
2a05c8e260
Fold constant adds into loads and stores to frame indices.
...
For the following code:
double %ext(int %A.0__, long %A.1__) {
%A_addr = alloca %typedef.DComplex ; <%typedef.DComplex*> [#uses=2]
%tmp.1 = cast %typedef.DComplex* %A_addr to int* ; <int*> [#uses=1]
store int %A.0__, int* %tmp.1
%tmp.2 = getelementptr %typedef.DComplex* %A_addr, int 0, uint 1 ; <double*> [#uses=2]
%tmp.3 = cast double* %tmp.2 to long* ; <long*> [#uses=1]
store long %A.1__, long* %tmp.3
%tmp.5 = load double* %tmp.2 ; <double> [#uses=1]
ret double %tmp.5
}
We now generate:
_ext:
.LBB_ext_0: ;
stw r3, -12(r1)
stw r4, -8(r1)
stw r5, -4(r1)
lfd f1, -8(r1)
blr
Instead of:
_ext:
.LBB_ext_0: ;
stw r3, -12(r1)
addi r2, r1, -12
stw r4, 4(r2)
stw r5, 8(r2)
lfd f1, 4(r2)
blr
This also fires hundreds of times on MultiSource.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22533 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-28 03:02:05 +00:00
Nate Begeman
3dee17581c
Fix some comments
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22530 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-27 23:11:27 +00:00
Jeff Cohen
00b16889ab
Eliminate all remaining tabs and trailing spaces.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22523 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-27 06:12:32 +00:00
Nate Begeman
54eed36da5
Implement the optimization for the Red Zone on Darwin. This removes the
...
unnecessary SP manipulation in leaf routines that don't need it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22522 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-27 06:06:29 +00:00
Chris Lattner
45ff4faeed
fix some warnings when compiled with 32-bit hosts
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22521 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-27 05:58:01 +00:00
Jeff Cohen
9eb59ec548
Eliminate tabs and trailing spaces.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22520 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-27 05:53:44 +00:00
Chris Lattner
b65975a6ed
add a note about the red zone
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22518 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-26 19:07:51 +00:00
Chris Lattner
2e00d7d0ae
Wrap some long lines, fix emission of weak global variables
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22517 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-26 19:03:27 +00:00
Nate Begeman
4ad870ddcc
Update the PPC readme
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22516 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-26 18:59:06 +00:00
Nate Begeman
7b4f0a81ff
Fix an optimization put in for accessing static globals. This obviates
...
the need to build PIC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22512 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-25 21:15:28 +00:00
Andrew Lenharth
f075cac445
fix compile error
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22508 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-23 07:46:48 +00:00
Chris Lattner
aa68f7fa09
PowerPC no-pic code is not quite ready for prime-time
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22507 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-22 22:58:34 +00:00
Andrew Lenharth
6b137d818a
Handle more imm forms, and load small negative i32 constants without hitting memory (should do the same for arbitrary zero extended small negative constants)
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22505 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-22 22:24:01 +00:00
Andrew Lenharth
38396f8a93
finally found the gcc defined constants
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22502 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-22 21:00:30 +00:00
Andrew Lenharth
0934ae02af
Alpha JIT (beta)
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22500 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-22 20:52:16 +00:00
Andrew Lenharth
f3f951af3f
simpilfy instruction encoding (and make the lines way shorter, aka Misha happification)
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22499 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-22 20:50:29 +00:00
Andrew Lenharth
908bc862d5
update interface
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22498 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-22 20:49:37 +00:00
Nate Begeman
2497e6391f
Support building non-PIC
...
Remove the LoadHiAddr pseudo-instruction.
Optimization of stores to and loads from statics.
Force JIT to use new non-PIC codepaths.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22494 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-21 20:44:43 +00:00
Chris Lattner
2130c08930
revert to using 4-byte alignment for doubles, as specified by the ABI
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22493 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-21 19:17:18 +00:00
Nate Begeman
18ed029a7b
Support assembling fsqrt on darwin. This will be implemented better when
...
PowerPC gets subtarget support up.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22489 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-21 01:25:49 +00:00
Nate Begeman
adeb43ddf4
Generate mfocrf when targeting g5. Generate fsqrt/fsqrts when targetin g5.
...
8-byte align doubles.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22486 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-20 22:42:00 +00:00
Nate Begeman
a3fd400fa8
Integrate SelectFPExpr into SelectExpr. This gets PPC32 closer to being
...
automatically generated from a target description.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22470 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-19 16:51:05 +00:00
Reid Spencer
a0f5bf306c
For: memory operations -> stores
...
This is the first incremental patch to implement this feature. It adds no
functionality to LLVM but setup up the information needed from targets in
order to implement the optimization correctly. Each target needs to specify
the maximum number of store operations for conversion of the llvm.memset,
llvm.memcpy, and llvm.memmove intrinsics into a sequence of store operations.
The limit needs to be chosen at the threshold of performance for such an
optimization (generally smallish). The target also needs to specify whether
the target can support unaligned stores for multi-byte store operations.
This helps ensure the optimization doesn't generate code that will trap on
an alignment errors.
More patches to follow.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22468 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-19 04:52:44 +00:00
Nate Begeman
5a8441ea3f
Teach the legalizer how to promote SINT_TO_FP to a wider SINT_TO_FP that
...
the target natively supports. This eliminates some special-case code from
the x86 backend and generates better code as well.
For an i8 to f64 conversion, before & after:
_x87 before:
subl $2, %esp
movb 6(%esp), %al
movsbw %al, %ax
movw %ax, (%esp)
filds (%esp)
addl $2, %esp
ret
_x87 after:
subl $2, %esp
movsbw 6(%esp), %ax
movw %ax, (%esp)
filds (%esp)
addl $2, %esp
ret
_sse before:
subl $12, %esp
movb 16(%esp), %al
movsbl %al, %eax
cvtsi2sd %eax, %xmm0
addl $12, %esp
ret
_sse after:
subl $12, %esp
movsbl 16(%esp), %eax
cvtsi2sd %eax, %xmm0
addl $12, %esp
ret
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22452 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-16 02:02:34 +00:00
Nate Begeman
11cefd926a
Teach the register allocator that movaps is also a move instruction
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22451 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-16 02:00:20 +00:00
Nate Begeman
9035b99abf
A couple more darwinisms
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22450 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-16 01:59:47 +00:00
Chris Lattner
a28381cac2
Remove all knowledge of UINT_TO_FP from the X86 backend, relying on the
...
legalizer to eliminate them. With this comes the expected code quality
improvements, such as, for this:
double foo(unsigned short X) { return X; }
we now generate this:
_foo:
subl $4, %esp
movzwl 8(%esp), %eax
movl %eax, (%esp)
fildl (%esp)
addl $4, %esp
ret
instead of this:
_foo:
subl $4, %esp
movw 8(%esp), %ax
movzwl %ax, %eax ;; Load not folded into this.
movl %eax, (%esp)
fildl (%esp)
addl $4, %esp
ret
-Chris
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22449 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-16 00:28:20 +00:00
Nate Begeman
16b04f3d5e
Get closer to fully working scalar FP in SSE regs. This gets singlesource
...
working, and Olden/power.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22441 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-15 00:38:55 +00:00
Nate Begeman
6c7cb29038
Add support for printing the sse scalar comparison instruction mnemonics.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22440 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-14 22:52:25 +00:00
John Criswell
ce4e1e419e
Fixed PR#596:
...
Add parenthesis around the value being negated; that way, if the value
begins with a minus sign (e.g. negative integer), we won't generate a
C predecrement operator by mistake.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22437 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-14 19:41:16 +00:00
Nate Begeman
d3a490a08e
Check in the last of the darwin-specific code necessary to get shootout
...
working before modifying the asm printer to use the subtarget info.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22408 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-12 18:34:58 +00:00
Nate Begeman
63b3f9acae
Remove some code that moved to the generic asm printer a long time ago.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22407 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-12 18:34:15 +00:00
Andrew Lenharth
fec0e4024f
Fix povray and minor cleanups
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22397 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-12 04:20:52 +00:00
Jeff Cohen
74fa8d67e1
I don't know how this ever compiled with gcc, but VC++ correctly rejects it.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22394 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-12 02:59:38 +00:00
Nate Begeman
0e219eb9b8
Clean up the TargetSubtarget class a bit, removing an unnecessary argument
...
to the constructor.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22392 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-12 02:41:19 +00:00
Chris Lattner
b151acadc8
Minor changes to improve comments and fix the build on _WIN32 systems.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22391 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-12 02:36:10 +00:00
Chris Lattner
3249bfc828
Add a note
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22390 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-12 02:35:36 +00:00
Nate Begeman
fb5792f416
Implement Subtarget support
...
Implement the X86 Subtarget.
This consolidates the checks for target triple, and setting options based
on target triple into one place. This allows us to convert the asm printer
and isel over from being littered with "forDarwin", "forCygwin", etc. into
just having the appropriate flags for each subtarget feature controlling
the code for that feature.
This patch also implements indirect external and weak references in the
X86 pattern isel, for darwin. Next up is to convert over the asm printers
to use this new interface.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22389 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-12 01:41:54 +00:00
Nate Begeman
73213f6c07
Commit some pending darwin changes before subtarget support.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22388 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-12 01:37:28 +00:00
Chris Lattner
df3623e962
fix a warning
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22385 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-11 22:46:18 +00:00
Chris Lattner
c569d79a2a
Output .size directives to tell the assembler the size of each function.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22381 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-11 06:29:14 +00:00
Chris Lattner
b12c9fa565
Fix crazy indentation
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22380 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-11 06:25:47 +00:00
Chris Lattner
81b6ed7ed1
Refactor things a bit to allow the ELF code emitter to run the X86 machine code emitter
...
after itself.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22376 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-11 05:17:48 +00:00