Brian Gaeke [Wed, 25 Feb 2004 19:08:12 +0000 (19:08 +0000)]
Great renaming part II: Sparc --> SparcV9 (also includes command-line options and Makefiles)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11827
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Brian Gaeke [Wed, 25 Feb 2004 18:44:15 +0000 (18:44 +0000)]
Great renaming: Sparc --> SparcV9
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11826
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Chris Lattner [Wed, 25 Feb 2004 17:43:20 +0000 (17:43 +0000)]
Add a bunch more functions used by perlbmk
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11824
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John Criswell [Wed, 25 Feb 2004 17:15:02 +0000 (17:15 +0000)]
Updated to use llc to generate CBE code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11823
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Chris Lattner [Wed, 25 Feb 2004 16:36:51 +0000 (16:36 +0000)]
Substantial improvements and cleanups for the release notes. We were missing
a bunch of stuff! :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11822
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Chris Lattner [Wed, 25 Feb 2004 15:15:04 +0000 (15:15 +0000)]
Fix incorrect debug code
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11821
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Chris Lattner [Wed, 25 Feb 2004 07:00:55 +0000 (07:00 +0000)]
Teach the instruction selector how to transform 'array' GEP computations into X86
scaled indexes. This allows us to compile GEP's like this:
int* %test([10 x { int, { int } }]* %X, int %Idx) {
%Idx = cast int %Idx to long
%X = getelementptr [10 x { int, { int } }]* %X, long 0, long %Idx, ubyte 1, ubyte 0
ret int* %X
}
Into a single address computation:
test:
mov %EAX, DWORD PTR [%ESP + 4]
mov %ECX, DWORD PTR [%ESP + 8]
lea %EAX, DWORD PTR [%EAX + 8*%ECX + 4]
ret
Before it generated:
test:
mov %EAX, DWORD PTR [%ESP + 4]
mov %ECX, DWORD PTR [%ESP + 8]
shl %ECX, 3
add %EAX, %ECX
lea %EAX, DWORD PTR [%EAX + 4]
ret
This is useful for things like int/float/double arrays, as the indexing can be folded into
the loads&stores, reducing register pressure and decreasing the pressure on the decode unit.
With these changes, I expect our performance on 256.bzip2 and gzip to improve a lot. On
bzip2 for example, we go from this:
10665 asm-printer - Number of machine instrs printed
40 ra-local - Number of loads/stores folded into instructions
1708 ra-local - Number of loads added
1532 ra-local - Number of stores added
1354 twoaddressinstruction - Number of instructions added
1354 twoaddressinstruction - Number of two-address instructions
2794 x86-peephole - Number of peephole optimization performed
to this:
9873 asm-printer - Number of machine instrs printed
41 ra-local - Number of loads/stores folded into instructions
1710 ra-local - Number of loads added
1521 ra-local - Number of stores added
789 twoaddressinstruction - Number of instructions added
789 twoaddressinstruction - Number of two-address instructions
2142 x86-peephole - Number of peephole optimization performed
... and these types of instructions are often in tight loops.
Linear scan is also helped, but not as much. It goes from:
8787 asm-printer - Number of machine instrs printed
2389 liveintervals - Number of identity moves eliminated after coalescing
2288 liveintervals - Number of interval joins performed
3522 liveintervals - Number of intervals after coalescing
5810 liveintervals - Number of original intervals
700 spiller - Number of loads added
487 spiller - Number of stores added
303 spiller - Number of register spills
1354 twoaddressinstruction - Number of instructions added
1354 twoaddressinstruction - Number of two-address instructions
363 x86-peephole - Number of peephole optimization performed
to:
7982 asm-printer - Number of machine instrs printed
1759 liveintervals - Number of identity moves eliminated after coalescing
1658 liveintervals - Number of interval joins performed
3282 liveintervals - Number of intervals after coalescing
4940 liveintervals - Number of original intervals
635 spiller - Number of loads added
452 spiller - Number of stores added
288 spiller - Number of register spills
789 twoaddressinstruction - Number of instructions added
789 twoaddressinstruction - Number of two-address instructions
258 x86-peephole - Number of peephole optimization performed
Though I'm not complaining about the drop in the number of intervals. :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11820
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Chris Lattner [Wed, 25 Feb 2004 06:13:04 +0000 (06:13 +0000)]
* Make the previous patch more efficient by not allocating a temporary MachineInstr
to do analysis.
*** FOLD getelementptr instructions into loads and stores when possible,
making use of some of the crazy X86 addressing modes.
For example, the following C++ program fragment:
struct complex {
double re, im;
complex(double r, double i) : re(r), im(i) {}
};
inline complex operator+(const complex& a, const complex& b) {
return complex(a.re+b.re, a.im+b.im);
}
complex addone(const complex& arg) {
return arg + complex(1,0);
}
Used to be compiled to:
_Z6addoneRK7complex:
mov %EAX, DWORD PTR [%ESP + 4]
mov %ECX, DWORD PTR [%ESP + 8]
*** mov %EDX, %ECX
fld QWORD PTR [%EDX]
fld1
faddp %ST(1)
*** add %ECX, 8
fld QWORD PTR [%ECX]
fldz
faddp %ST(1)
*** mov %ECX, %EAX
fxch %ST(1)
fstp QWORD PTR [%ECX]
*** add %EAX, 8
fstp QWORD PTR [%EAX]
ret
Now it is compiled to:
_Z6addoneRK7complex:
mov %EAX, DWORD PTR [%ESP + 4]
mov %ECX, DWORD PTR [%ESP + 8]
fld QWORD PTR [%ECX]
fld1
faddp %ST(1)
fld QWORD PTR [%ECX + 8]
fldz
faddp %ST(1)
fxch %ST(1)
fstp QWORD PTR [%EAX]
fstp QWORD PTR [%EAX + 8]
ret
Other programs should see similar improvements, across the board. Note that
in addition to reducing instruction count, this also reduces register pressure
a lot, always a good thing on X86. :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11819
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Chris Lattner [Wed, 25 Feb 2004 06:01:07 +0000 (06:01 +0000)]
Add a helper to create an addressing mode given all of the pieces.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11818
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Chris Lattner [Wed, 25 Feb 2004 03:45:50 +0000 (03:45 +0000)]
add an inefficient way of folding structure and constant array indexes together
into a single LEA instruction. This should improve the code generated for
things like X->A.B.C[12].D.
The bigger benefit is still coming though. Note that this uses an LEA instruction
instead of an add, giving the register allocator more freedom. We should probably
never generate ADDri32's.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11817
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Chris Lattner [Wed, 25 Feb 2004 02:56:58 +0000 (02:56 +0000)]
Implement special case for storing an immediate into memory so that we don't need
an intermediate register.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11816
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Brian Gaeke [Wed, 25 Feb 2004 01:53:45 +0000 (01:53 +0000)]
Cygwin defines log2 as a macro. Undef it here IFF it has already been defined,
so that we always get the inline function instead. Remember, kids, like it says
in the GCC manual, "An Inline Function is As Fast As a Macro."
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11815
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Brian Gaeke [Tue, 24 Feb 2004 22:58:31 +0000 (22:58 +0000)]
small portability fix.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11814
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Chris Lattner [Tue, 24 Feb 2004 22:17:00 +0000 (22:17 +0000)]
Add support for 'rename'
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11813
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Chris Lattner [Tue, 24 Feb 2004 22:06:07 +0000 (22:06 +0000)]
Make the verifier a little more explicit about this problem.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11811
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Chris Lattner [Tue, 24 Feb 2004 22:02:48 +0000 (22:02 +0000)]
Add support for remove, fwrite, and fread
Also fix problem where we didn't check to see if a node pointer was null.
Though fclose(null) doesn't make a lot of sense, 300.twolf does it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11810
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John Criswell [Tue, 24 Feb 2004 21:43:38 +0000 (21:43 +0000)]
Added the VTune tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11809
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Brian Gaeke [Tue, 24 Feb 2004 19:46:00 +0000 (19:46 +0000)]
FunctionLiveVarInfo.h moved: include/llvm/CodeGen -> lib/Target/Sparc/LiveVar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11804
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Chris Lattner [Tue, 24 Feb 2004 18:34:10 +0000 (18:34 +0000)]
Fix some unexpected fallout from the config.h changes. Because the CBE no
longer was getting this #include, it always fell back on the less precise
floating point initializer values, causing some testsuite failures.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11803
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Chris Lattner [Tue, 24 Feb 2004 18:10:14 +0000 (18:10 +0000)]
Fix a faulty optimization on FP values
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11801
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John Criswell [Tue, 24 Feb 2004 16:13:56 +0000 (16:13 +0000)]
Fixed minor typos.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11800
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Chris Lattner [Tue, 24 Feb 2004 16:09:21 +0000 (16:09 +0000)]
If a block is made dead, make sure to promptly remove it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11799
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Alkis Evlogimenos [Tue, 24 Feb 2004 08:58:30 +0000 (08:58 +0000)]
Move machine code rewriter and spiller outside the register
allocator.
The implementation is completely rewritten and now employs several
optimizations not exercised before. For example for 164.gzip we have
997 loads and 699 stores vs the 1221 loads and 880 stores we have
before.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11798
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Chris Lattner [Tue, 24 Feb 2004 07:23:58 +0000 (07:23 +0000)]
Implement SimplifyCFG/switch_switch_fold.ll
This case occurs many times in various benchmarks, especially when combined
with the previous patch. This allows it to get stuff like:
if (X == 4 || X == 3)
if (X == 5 || X == 8)
and
switch (X) {
case 4: case 5: case 6:
if (X == 4 || X == 5)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11797
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Chris Lattner [Tue, 24 Feb 2004 07:21:09 +0000 (07:21 +0000)]
New testcase. Switch instructions that go to switch instructions should be
merged.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11796
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Alkis Evlogimenos [Tue, 24 Feb 2004 06:30:36 +0000 (06:30 +0000)]
Add predicates for checking if a virtual register has a physical
register mapping or a stack slot mapping.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11795
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Chris Lattner [Tue, 24 Feb 2004 06:26:00 +0000 (06:26 +0000)]
Add some helpful methods for dealing with switch instructions
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11794
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Chris Lattner [Tue, 24 Feb 2004 05:54:22 +0000 (05:54 +0000)]
Rearrange code a bit
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11793
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Chris Lattner [Tue, 24 Feb 2004 05:38:11 +0000 (05:38 +0000)]
Implement: test/Regression/Transforms/SimplifyCFG/switch_create.ll
This turns code like this:
if (X == 4 | X == 7)
and
if (X != 4 & X != 7)
into switch instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11792
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Chris Lattner [Tue, 24 Feb 2004 05:34:44 +0000 (05:34 +0000)]
The simplifycfg pass should be able to turn stuff like:
if (X == 4 || X == 7)
and
if (X != 4 && X != 7)
into switch instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11791
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Chris Lattner [Tue, 24 Feb 2004 04:54:45 +0000 (04:54 +0000)]
Wow, the description of the 'switch' instruction was out of date.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11790
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Chris Lattner [Tue, 24 Feb 2004 04:02:20 +0000 (04:02 +0000)]
we no longer include boost
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11789
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Chris Lattner [Tue, 24 Feb 2004 03:54:22 +0000 (03:54 +0000)]
Hrm, my find must have been faulty. It didn't remove these as well.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11788
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Chris Lattner [Tue, 24 Feb 2004 03:53:00 +0000 (03:53 +0000)]
Boost is now unneeded, thanks to the fix for PR253, contributed by Reid Spencer!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11787
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Chris Lattner [Tue, 24 Feb 2004 03:50:24 +0000 (03:50 +0000)]
Now that's a new feature!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11786
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Chris Lattner [Tue, 24 Feb 2004 03:50:05 +0000 (03:50 +0000)]
Use the new LLVM is_class template instead of the boost one, allowing us to
remove our dependency on boost! Thanks to Reid Spencer for making this possible!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11785
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Chris Lattner [Tue, 24 Feb 2004 03:49:29 +0000 (03:49 +0000)]
Check in a new type_traits header which provides the mysterious is_class
template. Thanks go out to Reid Spencer for skillfully extracting this
from boost!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11784
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Chris Lattner [Tue, 24 Feb 2004 03:47:25 +0000 (03:47 +0000)]
Noone cares about similarity to boost
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11783
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Alkis Evlogimenos [Mon, 23 Feb 2004 23:49:40 +0000 (23:49 +0000)]
Make enum private as it is an implementation detail.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11782
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Alkis Evlogimenos [Mon, 23 Feb 2004 23:47:10 +0000 (23:47 +0000)]
Remove '4Virt' from member function names as it is obvious.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11781
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Alkis Evlogimenos [Mon, 23 Feb 2004 23:08:11 +0000 (23:08 +0000)]
Refactor VirtRegMap out of RegAllocLinearScan as the first part of bug
251 (providing a generic machine code rewriter/spiller).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11780
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Alkis Evlogimenos [Mon, 23 Feb 2004 22:42:51 +0000 (22:42 +0000)]
Include Config/config.h for SHLIBEXT.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11779
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Brian Gaeke [Mon, 23 Feb 2004 22:07:26 +0000 (22:07 +0000)]
DataTypes.h is now output from configure, and shortened
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11778
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Brian Gaeke [Mon, 23 Feb 2004 22:07:01 +0000 (22:07 +0000)]
Add SUBSTing checks for sys/types.h and inttypes.h; add DataTypes.h to AC_OUTPUT.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11777
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Brian Gaeke [Mon, 23 Feb 2004 22:07:00 +0000 (22:07 +0000)]
Regenerated with autoconf-2.57.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11776
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Chris Lattner [Mon, 23 Feb 2004 21:46:58 +0000 (21:46 +0000)]
Generate much more efficient code in programs like pifft
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11775
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Chris Lattner [Mon, 23 Feb 2004 21:46:42 +0000 (21:46 +0000)]
Fix a small typeo in my checkin last night that broke vortex and other programs :(
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11774
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Brian Gaeke [Mon, 23 Feb 2004 21:30:39 +0000 (21:30 +0000)]
Regenerated with autoheader-2.57.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11773
91177308-0d34-0410-b5e6-
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Brian Gaeke [Mon, 23 Feb 2004 21:30:37 +0000 (21:30 +0000)]
Regenerated with autoconf-2.57.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11772
91177308-0d34-0410-b5e6-
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Brian Gaeke [Mon, 23 Feb 2004 21:30:36 +0000 (21:30 +0000)]
Change test for pthreads to use AC_SUBST; add ThreadSupport.h as an AC_OUTPUT.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11771
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Brian Gaeke [Mon, 23 Feb 2004 21:30:29 +0000 (21:30 +0000)]
ThreadSupport.h is now output from configure.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11770
91177308-0d34-0410-b5e6-
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Brian Gaeke [Mon, 23 Feb 2004 21:12:58 +0000 (21:12 +0000)]
Remove check for slist
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11769
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Chris Lattner [Mon, 23 Feb 2004 20:30:06 +0000 (20:30 +0000)]
Fix InstCombine/2004-02-23-ShiftShiftOverflow.ll
Also, turn 'shr int %X, 1234' into 'shr int %X, 31'
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11768
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Chris Lattner [Mon, 23 Feb 2004 20:24:16 +0000 (20:24 +0000)]
Test for the other way also
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11767
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Chris Lattner [Mon, 23 Feb 2004 20:19:51 +0000 (20:19 +0000)]
New testcase
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11766
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Brian Gaeke [Mon, 23 Feb 2004 18:56:36 +0000 (18:56 +0000)]
Renamed to hash_set.in; move to using autoconf substitution tags.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11765
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Brian Gaeke [Mon, 23 Feb 2004 18:56:35 +0000 (18:56 +0000)]
Renamed to hash_map.in; move to using autoconf substitution tags.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11764
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Brian Gaeke [Mon, 23 Feb 2004 18:56:05 +0000 (18:56 +0000)]
Add include/Support/hash_map and include/Support/hash_set as AC_OUTPUT files.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11763
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Brian Gaeke [Mon, 23 Feb 2004 18:56:04 +0000 (18:56 +0000)]
Regenerated using autoheader-2.57.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11762
91177308-0d34-0410-b5e6-
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Brian Gaeke [Mon, 23 Feb 2004 18:56:03 +0000 (18:56 +0000)]
Move HASH_* checks to using AC_SUBST instead of AC_DEFINE. Tighten up some whitespace and comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11761
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Brian Gaeke [Mon, 23 Feb 2004 18:56:02 +0000 (18:56 +0000)]
Regenerated using autoconf-2.57.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11760
91177308-0d34-0410-b5e6-
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Alkis Evlogimenos [Mon, 23 Feb 2004 18:45:32 +0000 (18:45 +0000)]
Add number of spilled registers statistic.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11759
91177308-0d34-0410-b5e6-
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Chris Lattner [Mon, 23 Feb 2004 18:40:08 +0000 (18:40 +0000)]
Fix bugs in finegrainification
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11758
91177308-0d34-0410-b5e6-
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Chris Lattner [Mon, 23 Feb 2004 18:38:20 +0000 (18:38 +0000)]
Finegrainify namespacification
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11757
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Alkis Evlogimenos [Mon, 23 Feb 2004 18:36:38 +0000 (18:36 +0000)]
Use MachineBasicBlock::getParent().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11756
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Alkis Evlogimenos [Mon, 23 Feb 2004 18:28:35 +0000 (18:28 +0000)]
Remove implementation of default constructor as it is useless now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11755
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Brian Gaeke [Mon, 23 Feb 2004 18:16:10 +0000 (18:16 +0000)]
Renamed from include/Support/iterator. Doxygenify comments; add autoconf substitution tags.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11754
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Brian Gaeke [Mon, 23 Feb 2004 18:16:10 +0000 (18:16 +0000)]
Replaced by include/Support/iterator.in.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11753
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Brian Gaeke [Mon, 23 Feb 2004 18:16:09 +0000 (18:16 +0000)]
Regenerated with autoheader-2.57.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11752
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Brian Gaeke [Mon, 23 Feb 2004 18:16:08 +0000 (18:16 +0000)]
Add include/Support/iterator as an AC_OUTPUT file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11751
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Brian Gaeke [Mon, 23 Feb 2004 18:16:07 +0000 (18:16 +0000)]
Make all iterator checks use AC_SUBST instead of AC_DEFINE.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11750
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Brian Gaeke [Mon, 23 Feb 2004 18:16:06 +0000 (18:16 +0000)]
Regenerated with autoconf-2.57.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11749
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Alkis Evlogimenos [Mon, 23 Feb 2004 18:14:48 +0000 (18:14 +0000)]
Refactor rewinding code for finding the first terminator of a basic
block into MachineBasicBlock::getFirstTerminator().
This also fixes a bug in the implementation of the above in both
RegAllocLocal and InstrSched, where instructions where added after the
terminator if the basic block's only instruction was a terminator (it
shouldn't matter for RegAllocLocal since this case never occurs in
practice).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11748
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Chris Lattner [Mon, 23 Feb 2004 07:42:19 +0000 (07:42 +0000)]
Simplify code a bit, don't go off the end of the block, now that the current
block we are in might be empty
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11744
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Chris Lattner [Mon, 23 Feb 2004 07:29:45 +0000 (07:29 +0000)]
We were forgetting to add FP_REG_KILL instructions to basic blocks which will
eventually get an assignment due to elimination of PHIs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11743
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Chris Lattner [Mon, 23 Feb 2004 07:16:20 +0000 (07:16 +0000)]
Implement cast.ll::test14/15
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11742
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Chris Lattner [Mon, 23 Feb 2004 07:16:03 +0000 (07:16 +0000)]
Add tests for casts that should be eliminated
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11741
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Chris Lattner [Mon, 23 Feb 2004 06:38:22 +0000 (06:38 +0000)]
Refactor some code. In the mul - setcc folding case, we really care about
whether this is the sign bit or not, so check unsigned comparisons as well.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11740
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Chris Lattner [Mon, 23 Feb 2004 06:37:33 +0000 (06:37 +0000)]
Handle the unsigned form as well
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11739
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Alkis Evlogimenos [Mon, 23 Feb 2004 06:10:13 +0000 (06:10 +0000)]
Improved PhysRegTracker interface. RegAlloc lazily allocates the register tracker using a std::auto_ptr
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11738
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Chris Lattner [Mon, 23 Feb 2004 06:00:11 +0000 (06:00 +0000)]
Implement mul.ll:test11
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11737
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Chris Lattner [Mon, 23 Feb 2004 05:59:52 +0000 (05:59 +0000)]
Add a slight variant of test10
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11736
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Chris Lattner [Mon, 23 Feb 2004 05:47:48 +0000 (05:47 +0000)]
Implement "strength reduction" of X <= C and X >= C
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11735
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Chris Lattner [Mon, 23 Feb 2004 05:39:21 +0000 (05:39 +0000)]
Implement InstCombine/mul.ll:test10, which is a case that occurs when dealing
with "predication"
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11734
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Chris Lattner [Mon, 23 Feb 2004 05:38:47 +0000 (05:38 +0000)]
This multiply can be eliminated
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11733
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Alkis Evlogimenos [Mon, 23 Feb 2004 04:12:30 +0000 (04:12 +0000)]
Simplify iterator usage now that we have next(). Also don't pass iterators by reference now that MachineInstr* are in an ilist
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11732
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Chris Lattner [Mon, 23 Feb 2004 03:51:34 +0000 (03:51 +0000)]
Update the 'new features' section
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11731
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Chris Lattner [Mon, 23 Feb 2004 03:36:36 +0000 (03:36 +0000)]
Bug fixed
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11730
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Chris Lattner [Mon, 23 Feb 2004 03:27:05 +0000 (03:27 +0000)]
Work around a gas bug. Print '-
9223372036854775808' as unsigned.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11729
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Chris Lattner [Mon, 23 Feb 2004 03:21:41 +0000 (03:21 +0000)]
Implement cast fp -> bool
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11728
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Chris Lattner [Mon, 23 Feb 2004 03:21:09 +0000 (03:21 +0000)]
Add testcase for the casts that are missing in PR249
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11727
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Chris Lattner [Mon, 23 Feb 2004 03:10:10 +0000 (03:10 +0000)]
Stop passing iterators around by reference now that we have ilists!
Implement cast Type::ULongTy -> double
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11726
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Alkis Evlogimenos [Mon, 23 Feb 2004 01:57:39 +0000 (01:57 +0000)]
Some code cleanups from Chris
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11724
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Alkis Evlogimenos [Mon, 23 Feb 2004 01:25:05 +0000 (01:25 +0000)]
Fix comments in PhysRegTracker and rename isPhysRegAvail to isRegAvail to be consistent with the other two
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11723
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Chris Lattner [Mon, 23 Feb 2004 01:16:05 +0000 (01:16 +0000)]
Add a new cmove instruction
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11722
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Alkis Evlogimenos [Mon, 23 Feb 2004 01:01:21 +0000 (01:01 +0000)]
Move LiveIntervals.h up to be the first included header
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11721
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Alkis Evlogimenos [Mon, 23 Feb 2004 00:53:31 +0000 (00:53 +0000)]
Pull PhysRegTracker out of RegAllocLinearScan as it can be used by other allocators as well
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11720
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Alkis Evlogimenos [Mon, 23 Feb 2004 00:50:15 +0000 (00:50 +0000)]
Move LiveIntervals.h to lib/CodeGen since it shouldn't be exposed to other parts of the compiler
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11719
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Chris Lattner [Sun, 22 Feb 2004 19:47:26 +0000 (19:47 +0000)]
Only insert FP_REG_KILL instructions in MachineBasicBlocks that actually
use FP instructions. This reduces the number of instructions inserted in
176.gcc (for example) from 58074 to 101 (it doesn't use much FP, which
is typical). This reduction speeds up the entire code generator. In the
case of 176.gcc, llc went from taking 31.38s to 24.78s. The passes that
sped up the most are the register allocator and the 2 live variable analysis
passes, which sped up 2.3, 1.3, and 1.5s respectively. The asmprinter
pass also sped up because it doesn't print the instructions in comments :)
Note that this patch is likely to expose latent bugs in machine code passes,
because now basicblock can be empty, where they were never empty before. I
cleaned out regalloclocal, but who knows about linscan :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11717
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Chris Lattner [Sun, 22 Feb 2004 19:37:31 +0000 (19:37 +0000)]
Another bug fix for empty MBB's
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11716
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