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3307 Commits

Author SHA1 Message Date
Chris Lattner
18ad19488d Allow the selection-dag based selector to be diabled with -disable-pattern-isel. 
For now, this is the default, as the current selector is missing some big pieces.
To enable the new selector, pass -disable-pattern-isel=false to llc or lli.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19335 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-07 07:50:50 +00:00
Chris Lattner
8acb1ba04d Reimplementation of the X86 pattern isel. This is still missing many large 
pieces, but can already do amazing things in some cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19334 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-07 07:49:41 +00:00
Chris Lattner
d844d0128a This file is now dead. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19333 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-07 07:49:05 +00:00
Chris Lattner
95cdb36714 Add a new prototype 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19332 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-07 07:48:33 +00:00
Chris Lattner
6ac95f9679 Codegen -1 and -0.0 more efficiently. This implements CodeGen/X86/negatize_zero.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19313 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-06 21:19:16 +00:00
Jeff Cohen
d01f65aea1 Fix CBE code so that it compiles with VC++. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19303 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-06 04:21:49 +00:00
Chris Lattner
5384b38ccc 1. If a double FP constant must be put into a constant pool, but it can be 
precisely represented as a float, put it into the constant pool as a
   float.
2. Use the cbw/cwd/cdq instructions instead of an explicit SAR for signed
   division.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19291 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-05 16:30:14 +00:00
Chris Lattner
0539313fe5 Minor optimization to allocate R8 registers in a better order. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19289 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-05 16:09:16 +00:00
Jeff Cohen
1c32f79a82 Revert elimination of global variable hack... still needed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19273 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-03 16:34:19 +00:00
Chris Lattner
10197ff5cd ADC and IMUL are also commutable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19264 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-03 01:27:59 +00:00
Chris Lattner
35e5c7c186 This hunk: 
-  unsigned TrueValue = getReg(TrueVal, BB, BB->begin());
+  unsigned TrueValue = getReg(TrueVal);

Fixes the PPC regressions from last night.

The other hunk is just a clarity improvement.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19263 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-02 23:07:31 +00:00
Jeff Cohen
40296bdf27 Eliminate the use of the global variable hack in the X86 target that was used 
to get Visual Studio to link in X86.lib to the executables that need it.  There
is another way of doing it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19252 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-02 04:23:12 +00:00
Chris Lattner
5aee0b97aa Disable 2->3 address promotion of add and inc instructions to LEA's. In 
addition to being three address, LEA's don't set the flags.

This fixes 186.crafty.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19251 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-02 04:18:17 +00:00
Chris Lattner
5dd350defd Add a new method. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19249 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-02 02:38:18 +00:00
Chris Lattner
eb96ec52ff Add support for SETNPr to lower to memory form. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19248 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-02 02:37:46 +00:00
Chris Lattner
bcea4d6f28 Implement the convertToThreeAddress method, add support for inverting JP/JNP 
branches.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19247 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-02 02:37:07 +00:00
Chris Lattner
cc65beeb39 Two changes here: 
1. Add new instructions for checking parity flags: JP, JNP, SETP, SETNP.
2. Set the isCommutable and isPromotableTo3Address bits on several
   instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19246 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-02 02:35:46 +00:00
Chris Lattner
273f2280f2 Add some bits that can be set for instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19241 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-02 02:27:48 +00:00
Chris Lattner
6dec0b09d5 Fix a FIXME: Select instructions on longs were miscompiled. 
While we're at it, improve codegen of select instructions.  For this
testcase:

int %test(bool %C, int %A, int %B) {
  %D = select bool %C, int %A, int %B
  ret int %D
}

We used to generate this code:

_test:
        cmpwi cr0, r3, 0
        bne .LBB_test_2 ;
.LBB_test_1:    ;
        b .LBB_test_3   ;
.LBB_test_2:    ;
        or r5, r4, r4
.LBB_test_3:    ;
        or r3, r5, r5
        blr

Now we emit:

_test:
        cmpwi cr0, r3, 0
        bne .LBB_test_2 ;
.LBB_test_1:    ;
        or r4, r5, r5
.LBB_test_2:    ;
        or r3, r4, r4
        blr

-Chris


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19214 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-01 16:10:12 +00:00
Chris Lattner
e7f96c515e Substantially improve the code generated by non-folded setcc instructions. 
In particular, instead of compiling this:

bool %test(int %A, int %B) {
  %C = setlt int %A, %B
  ret bool %C
}

to this:

test:
        save %sp, -96, %sp
        subcc %i0, %i1, %g0
        bl .LBBtest_1   !
        nop
        ba .LBBtest_2   !
        nop
.LBBtest_1:     !
        or %g0, 1, %i0
        ba .LBBtest_3   !
        nop
.LBBtest_2:     !
        or %g0, 0, %i0
        ba .LBBtest_3   !
        nop
.LBBtest_3:     !
        restore %g0, %g0, %g0
        retl
        nop

We now compile it to this:

test:
        save %sp, -96, %sp
        subcc %i0, %i1, %g0
        or %g0, 1, %i0
        bl .LBBtest_2   !
        nop
.LBBtest_1:     !
        or %g0, %g0, %i0
.LBBtest_2:     !
        restore %g0, %g0, %g0
        retl
        nop


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19213 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-01 16:06:57 +00:00
Chris Lattner
f376e5e5f6 Fix PR490 
Fix testcase CodeGen/CBackend/2004-12-28-LogicalConstantExprs.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19176 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-12-29 04:00:09 +00:00
Chris Lattner
6b4f501470 Remove unused enum value 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19024 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-12-17 22:41:46 +00:00
Chris Lattner
84c556e92a Remove unused #include 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19021 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-12-17 19:07:04 +00:00
Chris Lattner
8cdbc35216 Change the sentinal 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19007 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-12-17 00:46:51 +00:00
Chris Lattner
11cf7aa775 Create a stack slot for the return address lazily instead of eagerly. This 
save small amounts of time for functions that don't call llvm.returnaddress
or llvm.frameaddress (which is almost all functions).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19006 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-12-17 00:07:46 +00:00
Tanya Lattner
acd6782470 Chris is a pain ;) Removing reassociate. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19005 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-12-16 23:16:16 +00:00
Tanya Lattner
78943f7edf Removing commented out lines. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19004 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-12-16 23:13:16 +00:00
Tanya Lattner
9fde12b747 Removed LICM and GCSE. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19003 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-12-16 23:07:36 +00:00
Chris Lattner
7f2b41e316 Remove dead #include 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18994 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-12-16 19:32:38 +00:00
Chris Lattner
84b85c8262 Adjust to changes in asmwriter filenames 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18987 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-12-16 17:33:24 +00:00
Chris Lattner
47f9dd14b2 Specify all of the targets built. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18985 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-12-16 17:26:44 +00:00
Chris Lattner
42c7a16955 Use the rules in Makefile.rules to build SparcV9GenCodeEmitter.inc instead 
of custom rules.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18984 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-12-16 16:47:56 +00:00
Chris Lattner
24d5d5d90b Fix header 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18983 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-12-16 16:47:03 +00:00
Chris Lattner
be686a8897 Factor out common .td file chunks. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18982 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-12-16 16:31:57 +00:00
Chris Lattner
3e3b6f7a46 Fix PR485, instead of emitting zero sized arrays, emit arrays of size 1. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18974 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-12-15 23:13:15 +00:00
Brian Gaeke
5761805d27 The mystery of Olden/tsp solved, and more opportunities for speedup. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18932 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-12-14 09:10:10 +00:00
Brian Gaeke
6b260e2638 Get rid of shifts by zero in most cases. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18931 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-12-14 08:21:02 +00:00
Chris Lattner
395fd5949b When generating code for X86 targets, make sure the fp control word is set 
to 64-bit precision, not 80 bits.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18915 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-12-13 21:52:52 +00:00
Chris Lattner
e171d5c812 Add some notes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18911 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-12-13 20:13:10 +00:00
Chris Lattner
c0354c904b Set the rounding mode for the X86 FPU to 64-bits instead of 80-bits. We 
don't support long double anyway, and this gives us FP results closer to
other targets.

This also speeds up 179.art from 41.4s to 18.32s, by eliminating a problem
with extra precision that causes an FP == comparison to fail (leading to
extra loop iterations).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18895 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-12-13 17:23:11 +00:00
Brian Gaeke
a04d959f0c Add V8 SPEC status. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18844 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-12-13 00:27:35 +00:00
Chris Lattner
869f45937b Fix Regression/CodeGen/PowerPC/2004-12-12-ZeroSizeCommon.ll, and all programs 
when compiled with debug information.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18835 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-12-12 20:36:19 +00:00
Chris Lattner
8363ad6bfc CSE calls to getTypeSize. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18833 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-12-12 20:31:00 +00:00
Chris Lattner
3ea78c4276 Use the target triple to pick this target. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18830 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-12-12 17:40:28 +00:00
Brian Gaeke
367c137f6a Complete the list of MultiSource failures. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18826 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-12-12 08:22:11 +00:00
Brian Gaeke
326f378a8f hbd should be working now. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18824 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-12-12 07:42:59 +00:00
Brian Gaeke
f731be0dd5 Finally enable the setcc-branch folding code. 
Also, fix a bug where ubyte 255 would sometimes be output as -1. This
was afflicting hbd.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18823 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-12-12 07:42:58 +00:00
Brian Gaeke
81cf150b5d Add (currently disabled) code for canFoldSetCC 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18820 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-12-12 06:22:30 +00:00
Brian Gaeke
6a8c46cde3 Add stubs for setcc-branch folding support. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18818 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-12-12 06:01:26 +00:00
Brian Gaeke
74be3a5794 Print llvm code one function at a time. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18805 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-12-11 22:17:07 +00:00