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2628 Commits

Author SHA1 Message Date
Chris Lattner d4bb2bbce1 ADC and IMUL are also commutable. 
llvm-svn: 19264
 2005-01-03 01:27:59 +00:00
Chris Lattner 82787e90f3 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.

llvm-svn: 19263
 2005-01-02 23:07:31 +00:00
Jeff Cohen 2cf40e142c 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.

llvm-svn: 19252
 2005-01-02 04:23:12 +00:00
Chris Lattner 733aac1270 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.

llvm-svn: 19251
 2005-01-02 04:18:17 +00:00
Chris Lattner e7228736e0 Add a new method. 
llvm-svn: 19249
 2005-01-02 02:38:18 +00:00
Chris Lattner b62b45b3fc Add support for SETNPr to lower to memory form. 
llvm-svn: 19248
 2005-01-02 02:37:46 +00:00
Chris Lattner b7782d77c1 Implement the convertToThreeAddress method, add support for inverting JP/JNP 
branches.

llvm-svn: 19247
 2005-01-02 02:37:07 +00:00
Chris Lattner 295e45e60e 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.

llvm-svn: 19246
 2005-01-02 02:35:46 +00:00
Chris Lattner 182db0cac0 Add some bits that can be set for instructions. 
llvm-svn: 19241
 2005-01-02 02:27:48 +00:00
Chris Lattner 83df5d25b7 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

llvm-svn: 19214
 2005-01-01 16:10:12 +00:00
Chris Lattner 78394258ae 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

llvm-svn: 19213
 2005-01-01 16:06:57 +00:00
Chris Lattner 93feeb18f1 Fix PR490 
Fix testcase CodeGen/CBackend/2004-12-28-LogicalConstantExprs.ll

llvm-svn: 19176
 2004-12-29 04:00:09 +00:00
Chris Lattner 45382d34cc Remove unused enum value 
llvm-svn: 19024
 2004-12-17 22:41:46 +00:00
Chris Lattner 227010bb31 Remove unused #include 
llvm-svn: 19021
 2004-12-17 19:07:04 +00:00
Chris Lattner db0bf10e4a Change the sentinal 
llvm-svn: 19007
 2004-12-17 00:46:51 +00:00
Chris Lattner 979b903916 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).

llvm-svn: 19006
 2004-12-17 00:07:46 +00:00
Tanya Lattner 991b5e9457 Chris is a pain ;) Removing reassociate. 
llvm-svn: 19005
 2004-12-16 23:16:16 +00:00
Tanya Lattner a5528e89fd Removing commented out lines. 
llvm-svn: 19004
 2004-12-16 23:13:16 +00:00
Tanya Lattner 08e19bb412 Removed LICM and GCSE. 
llvm-svn: 19003
 2004-12-16 23:07:36 +00:00
Chris Lattner 5a4c66cfe9 Remove dead #include 
llvm-svn: 18994
 2004-12-16 19:32:38 +00:00
Chris Lattner 20d74fd986 Adjust to changes in asmwriter filenames 
llvm-svn: 18987
 2004-12-16 17:33:24 +00:00
Chris Lattner a38954dd64 Specify all of the targets built. 
llvm-svn: 18985
 2004-12-16 17:26:44 +00:00
Chris Lattner 03227509c0 Use the rules in Makefile.rules to build SparcV9GenCodeEmitter.inc instead 
of custom rules.

llvm-svn: 18984
 2004-12-16 16:47:56 +00:00
Chris Lattner 0bc3333ff4 Fix header 
llvm-svn: 18983
 2004-12-16 16:47:03 +00:00
Chris Lattner 0782e27d85 Factor out common .td file chunks. 
llvm-svn: 18982
 2004-12-16 16:31:57 +00:00
Chris Lattner 298a7f8d8b Fix PR485, instead of emitting zero sized arrays, emit arrays of size 1. 
llvm-svn: 18974
 2004-12-15 23:13:15 +00:00
Brian Gaeke 4bc39bef79 The mystery of Olden/tsp solved, and more opportunities for speedup. 
llvm-svn: 18932
 2004-12-14 09:10:10 +00:00
Brian Gaeke 36c14da84f Get rid of shifts by zero in most cases. 
llvm-svn: 18931
 2004-12-14 08:21:02 +00:00
Chris Lattner b3b1c279a2 When generating code for X86 targets, make sure the fp control word is set 
to 64-bit precision, not 80 bits.

llvm-svn: 18915
 2004-12-13 21:52:52 +00:00
Chris Lattner 951e94e867 Add some notes 
llvm-svn: 18911
 2004-12-13 20:13:10 +00:00
Chris Lattner c97cac3d32 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).

llvm-svn: 18895
 2004-12-13 17:23:11 +00:00
Brian Gaeke cf2c1866cb Add V8 SPEC status. 
llvm-svn: 18844
 2004-12-13 00:27:35 +00:00
Chris Lattner cbd47631ea Fix Regression/CodeGen/PowerPC/2004-12-12-ZeroSizeCommon.ll, and all programs 
when compiled with debug information.

llvm-svn: 18835
 2004-12-12 20:36:19 +00:00
Chris Lattner 10b637eade CSE calls to getTypeSize. 
llvm-svn: 18833
 2004-12-12 20:31:00 +00:00
Chris Lattner 17550c456c Use the target triple to pick this target. 
llvm-svn: 18830
 2004-12-12 17:40:28 +00:00
Brian Gaeke 23b2bc54b0 Complete the list of MultiSource failures. 
llvm-svn: 18826
 2004-12-12 08:22:11 +00:00
Brian Gaeke ed9346820d hbd should be working now. 
llvm-svn: 18824
 2004-12-12 07:42:59 +00:00
Brian Gaeke 27358a44d1 Finally enable the setcc-branch folding code. 
Also, fix a bug where ubyte 255 would sometimes be output as -1. This
was afflicting hbd.

llvm-svn: 18823
 2004-12-12 07:42:58 +00:00
Brian Gaeke e5351ad5f0 Add (currently disabled) code for canFoldSetCC 
llvm-svn: 18820
 2004-12-12 06:22:30 +00:00
Brian Gaeke aa40b7d080 Add stubs for setcc-branch folding support. 
llvm-svn: 18818
 2004-12-12 06:01:26 +00:00
Brian Gaeke 25ac83565e Print llvm code one function at a time. 
llvm-svn: 18805
 2004-12-11 22:17:07 +00:00
Brian Gaeke 72daaa46eb JIT should print LLVM each function before selecting instructions for it. 
llvm-svn: 18803
 2004-12-11 18:41:09 +00:00
Brian Gaeke b3095dd88f Bools are *also* not ints. Sigh. Furthermore, most of the TargetMachine 
ctor parameters can be defaulted.

Print the transformed llvm code input to the instruction selector
when -print-machineinstrs is on, just like V9.

llvm-svn: 18794
 2004-12-11 05:19:04 +00:00
Brian Gaeke ba5e9f107c Look for many more moves to fold (previously, we only 
*or g0, x      add g0, x          recognized * as a move)
 or  x, g0     add  x, g0
 or  0, x      add  0, x
 or  x, 0      add  x, 0

llvm-svn: 18793
 2004-12-11 05:19:03 +00:00
Brian Gaeke 52a9ed63b5 Make GEPs not suck so much: 
* Don't emit the Index * ElementSize multiply if Index is a constant.
* Use a shift, not a multiply, if ElementSize is 1/2/4/8.
* If ElementSize fits in the immediate field of SMUL, then put it there.

Fix a bug where struct offsets might be truncated (ConstantSInt::get is
now used instead of ConstantInt::get).

llvm-svn: 18792
 2004-12-11 05:19:02 +00:00
Brian Gaeke cba3135ba8 Update lists of failing benchmarks, including info on which 
ones are failing in cbe.

llvm-svn: 18791
 2004-12-11 05:19:01 +00:00
Brian Gaeke 2e2f3e26ba Move -lowerselect later in the chain; some select instructions were 
slipping through into the instruction selector, which can't deal with
them yet.

llvm-svn: 18758
 2004-12-10 08:39:30 +00:00
Brian Gaeke 2ccff7c256 Add the rest of the multiply instructions. 
llvm-svn: 18757
 2004-12-10 08:39:29 +00:00
Brian Gaeke 4bfd3f7c98 Support binary operations with immediates for <= cInt. 
llvm-svn: 18756
 2004-12-10 08:39:28 +00:00
Brian Gaeke 428037be05 Update lists of failing benchmarks (except C++...something is the 
matter with my sparcv8 libstdc++.a) and to-do list.

llvm-svn: 18755
 2004-12-10 08:39:27 +00:00