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17106 Commits

Author SHA1 Message Date
Chris Lattner 0fe7776da5 Eliminate unneeded extensions. 
llvm-svn: 19577
 2005-01-16 00:17:20 +00:00
Chris Lattner 4d97864e92 Implement promotion of a whole bunch more operators. I think that this is 
basically everything.

llvm-svn: 19576
 2005-01-15 22:16:26 +00:00
Chris Lattner 630d1937bf Print extra type for nodes with extra type info. 
llvm-svn: 19575
 2005-01-15 21:11:37 +00:00
Jeff Cohen a2071f1247 Add new file to Visual Studio CodeGen project 
llvm-svn: 19574
 2005-01-15 07:33:52 +00:00
Chris Lattner 99222f706c Add support for legalizing FP_ROUND_INREG, SIGN_EXTEND_INREG, and 
ZERO_EXTEND_INREG for targets that don't support them.

llvm-svn: 19573
 2005-01-15 07:15:18 +00:00
Chris Lattner 09d1b3d01d Common code factored out. 
llvm-svn: 19572
 2005-01-15 07:14:32 +00:00
Chris Lattner 5d24d61ae8 implement these methods. 
llvm-svn: 19571
 2005-01-15 06:52:40 +00:00
Chris Lattner efd434591d Add some helper methods. 
llvm-svn: 19570
 2005-01-15 06:52:18 +00:00
Chris Lattner c6c9a5b07d Add support for promoting ADD/MUL. 
Add support for new SIGN_EXTEND_INREG, ZERO_EXTEND_INREG, and FP_ROUND_INREG operators.
Realize that if we do any promotions, we need to iterate SelectionDAG
construction.

llvm-svn: 19569
 2005-01-15 06:18:18 +00:00
Chris Lattner 1001c6e2cd Add new SIGN_EXTEND_INREG, ZERO_EXTEND_INREG, and FP_ROUND_INREG operators. 
llvm-svn: 19568
 2005-01-15 06:17:04 +00:00
Chris Lattner 9de5890211 Add a new target-independent code generator flag. 
llvm-svn: 19567
 2005-01-15 06:00:32 +00:00
Chris Lattner e18a4c4c19 Add support for truncstore and *extload. 
llvm-svn: 19566
 2005-01-15 05:22:24 +00:00
Chris Lattner 1f2c9d82fa Add intitial support for promoting some operators. 
llvm-svn: 19565
 2005-01-15 05:21:40 +00:00
Chris Lattner ea2fa46f53 Improve output precision. 
llvm-svn: 19564
 2005-01-15 00:07:19 +00:00
Reid Spencer 730e7cb048 We don't distribute the operating system specific directories any more. 
llvm-svn: 19563
 2005-01-14 22:43:01 +00:00
Chris Lattner 3b8e719d1d Adjust to CopyFromReg changes, implement deletion of truncating/extending 
stores/loads.

llvm-svn: 19562
 2005-01-14 22:38:01 +00:00
Chris Lattner 720a62e8c7 Adjust to CopyFromREg changes. 
llvm-svn: 19561
 2005-01-14 22:37:41 +00:00
Chris Lattner 868e9d79d7 Change CopyFromReg to take and produce a chain node, allowing it to be used 
with physregs that are not live across the entire block.

llvm-svn: 19560
 2005-01-14 22:37:20 +00:00
Chris Lattner 39c6744c9f Start implementing truncating stores and extending loads. 
llvm-svn: 19559
 2005-01-14 22:08:15 +00:00
Chris Lattner 4bdb582200 Start adding some new operators, give IMPLICIT_DEF a chain operand. 
llvm-svn: 19558
 2005-01-14 22:07:46 +00:00
Chris Lattner d7bffad559 Fix Regression/CodeGen/PowerPC/2005-01-14-UndefLong.ll 
llvm-svn: 19557
 2005-01-14 20:22:02 +00:00
Chris Lattner 8025e8b9e6 New testcase, problem found by Rob. 
llvm-svn: 19556
 2005-01-14 20:21:51 +00:00
Chris Lattner c3ed31f837 Fix: Regression/CodeGen/PowerPC/2005-01-14-SetSelectCrash.ll 
llvm-svn: 19555
 2005-01-14 19:31:00 +00:00
Chris Lattner 57fb55d750 Testcase that crashes the PPC backend. Thanks to Rob for finding this. 
llvm-svn: 19554
 2005-01-14 19:30:42 +00:00
Chris Lattner 51726c47fe Fix some bugs in an xform added yesterday. This fixes Prolangs-C/allroots. 
llvm-svn: 19553
 2005-01-14 17:35:12 +00:00
Chris Lattner 7aa41cfa88 Fix a compile crash on spiff 
llvm-svn: 19552
 2005-01-14 17:17:59 +00:00
Reid Spencer b12e290f8a Allow the Echo and EchoCmd variables to be overridden. 
llvm-svn: 19551
 2005-01-14 16:33:36 +00:00
Reid Spencer 9dcfffd730 Fix the path from ../lib/Debug to ../Debug/lib per changes to Makefiles. 
llvm-svn: 19550
 2005-01-14 16:32:39 +00:00
Chris Lattner 0ad02bdd3d Improve compatibility with acc 
llvm-svn: 19549
 2005-01-14 15:54:24 +00:00
Chris Lattner d3af59bec2 Make this compatible with the HP/intel compiler. Fix by Duraid, thanks! 
llvm-svn: 19548
 2005-01-14 15:53:26 +00:00
Alkis Evlogimenos a938e629f6 Correctly update configure to configure the llvm-java project 
llvm-svn: 19546
 2005-01-14 07:52:28 +00:00
Jeff Cohen e246cdc946 Fix and improve win32 path validation. 
llvm-svn: 19545
 2005-01-14 04:09:39 +00:00
Reid Spencer cbeed3571a Make asctime_r work for HP/UX. 
llvm-svn: 19544
 2005-01-14 00:50:50 +00:00
Chris Lattner 144f6e3dee More testcases 
llvm-svn: 19543
 2005-01-14 00:26:25 +00:00
Chris Lattner 4fa89827e2 if two gep comparisons only differ by one index, compare that index directly. 
This allows us to better optimize begin() -> end() comparisons in common cases.

llvm-svn: 19542
 2005-01-14 00:20:05 +00:00
Chris Lattner d35d210ea0 Do not overrun iterators. This fixes a 176.gcc crash 
llvm-svn: 19541
 2005-01-13 23:26:48 +00:00
Chris Lattner 8ea1e8b982 Add a method 
llvm-svn: 19540
 2005-01-13 23:26:28 +00:00
Chris Lattner 7db6765530 new testcase 
llvm-svn: 19539
 2005-01-13 23:26:14 +00:00
Chris Lattner 7d131a4b9c Add a method 
llvm-svn: 19538
 2005-01-13 22:58:50 +00:00
Chris Lattner a04c904c4c Turn select C, (X+Y), (X-Y) --> (X+(select C, Y, (-Y))). This occurs in 
the 'sim' program and probably elsewhere.  In sim, it comes up for cases
like this:

#define round(x) ((x)>0.0 ? (x)+0.5 : (x)-0.5)
double G;
void T(double X) { G = round(X); }

(it uses the round macro a lot).  This changes the LLVM code from:

        %tmp.1 = setgt double %X, 0.000000e+00          ; <bool> [#uses=1]
        %tmp.4 = add double %X, 5.000000e-01            ; <double> [#uses=1]
        %tmp.6 = sub double %X, 5.000000e-01            ; <double> [#uses=1]
        %mem_tmp.0 = select bool %tmp.1, double %tmp.4, double %tmp.6
        store double %mem_tmp.0, double* %G

to:

        %tmp.1 = setgt double %X, 0.000000e+00          ; <bool> [#uses=1]
        %mem_tmp.0.p = select bool %tmp.1, double 5.000000e-01, double -5.000000e-01
        %mem_tmp.0 = add double %mem_tmp.0.p, %X
        store double %mem_tmp.0, double* %G
        ret void

llvm-svn: 19537
 2005-01-13 22:52:24 +00:00
Chris Lattner 81e8417614 Implement an optimization for == and != comparisons like this: 
_Bool test2(int X, int Y) {
  return &arr[X][Y] == arr;
}

instead of generating this:

bool %test2(int %X, int %Y) {
        %tmp.3.idx = mul int %X, 160            ; <int> [#uses=1]
        %tmp.3.idx1 = shl int %Y, ubyte 2               ; <int> [#uses=1]
        %tmp.3.offs2 = sub int 0, %tmp.3.idx            ; <int> [#uses=1]
        %tmp.7 = seteq int %tmp.3.idx1, %tmp.3.offs2            ; <bool> [#uses=1]
        ret bool %tmp.7
}


generate this:

bool %test2(int %X, int %Y) {
        seteq int %X, 0         ; <bool>:0 [#uses=1]
        seteq int %Y, 0         ; <bool>:1 [#uses=1]
        %tmp.7 = and bool %0, %1                ; <bool> [#uses=1]
        ret bool %tmp.7
}

This idiom occurs in C++ programs when iterating from begin() to end(),
in a vector or array.  For example, we now compile this:

void test(int X, int Y) {
  for (int *i = arr; i != arr+100; ++i)
    foo(*i);
}

to this:

no_exit:                ; preds = %entry, %no_exit
	...
        %exitcond = seteq uint %indvar.next, 100                ; <bool> [#uses=1]
        br bool %exitcond, label %return, label %no_exit



instead of this:

no_exit:                ; preds = %entry, %no_exit
	...
        %inc5 = getelementptr [100 x [40 x int]]* %arr, int 0, int 0, int %inc.rec              ; <int*> [#uses=1]
        %tmp.8 = seteq int* %inc5, getelementptr ([100 x [40 x int]]* %arr, int 0, int 100, int 0)              ; <bool> [#uses=1]
        %indvar.next = add uint %indvar, 1              ; <uint> [#uses=1]
        br bool %tmp.8, label %return, label %no_exit

llvm-svn: 19536
 2005-01-13 22:25:21 +00:00
Chris Lattner e727af06c8 Add new ImplicitDef node, rename CopyRegSDNode class to RegSDNode. 
llvm-svn: 19535
 2005-01-13 20:50:02 +00:00
Chris Lattner 4cb9fa373b Fix some bugs in code I didn't mean to check in. 
llvm-svn: 19534
 2005-01-13 20:40:58 +00:00
Chris Lattner 0798af33a5 Fix a crash compiling 129.compress 
llvm-svn: 19533
 2005-01-13 20:14:25 +00:00
Chris Lattner 15bd19dd76 Codegen factor nodes more intelligently according to perceived register pressure. 
llvm-svn: 19532
 2005-01-13 19:56:00 +00:00
Chris Lattner 2451684678 Don't forget the existing root. 
llvm-svn: 19531
 2005-01-13 19:53:14 +00:00
Reid Spencer 74bc42304c Update the documentation about -enable-llcbeta vs. -enable-linscan 
llvm-svn: 19530
 2005-01-13 18:02:40 +00:00
Chris Lattner c251fb6441 Initial trivial (but stupid) codegen for this node. 
llvm-svn: 19529
 2005-01-13 18:01:36 +00:00
Chris Lattner 718b5c2f82 Codegen independent ops as being independent. 
llvm-svn: 19528
 2005-01-13 17:59:43 +00:00
Chris Lattner 05b4e37e85 Legalize new node, add assertion. 
llvm-svn: 19527
 2005-01-13 17:59:25 +00:00