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Author SHA1 Message Date
Chris Lattner
68dc310942 Implement a couple of more simplifications. This lets us codegen: 
int test2(int * P, int* Q, int A, int B) {
        return P+A == P;
}

into:

test2:
        movl 4(%esp), %eax
        movl 12(%esp), %eax
        shll $2, %eax
        cmpl $0, %eax
        sete %al
        movzbl %al, %eax
        ret

instead of:

test2:
        movl 4(%esp), %eax
        movl 12(%esp), %ecx
        leal (%eax,%ecx,4), %ecx
        cmpl %eax, %ecx
        sete %al
        movzbl %al, %eax
        ret

ICC is producing worse code:

test2:
        movl      4(%esp), %eax                                 #8.5
        movl      12(%esp), %edx                                #8.5
        lea       (%edx,%edx), %ecx                             #9.9
        addl      %ecx, %ecx                                    #9.9
        addl      %eax, %ecx                                    #9.9
        cmpl      %eax, %ecx                                    #9.16
        movl      $0, %eax                                      #9.16
        sete      %al                                           #9.16
        ret                                                     #9.16

as is GCC (looks like our old code):

test2:
        movl    4(%esp), %edx
        movl    12(%esp), %eax
        leal    (%edx,%eax,4), %ecx
        cmpl    %edx, %ecx
        sete    %al
        movzbl  %al, %eax
        ret


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19430 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-10 02:03:02 +00:00
Chris Lattner
87ae6ae41c Fix incorrect constant folds, fixing Stepanov after the SHR patch. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19429 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-10 01:16:03 +00:00
Jeff Cohen
d606307127 Update System project in Visual Studio to reflect renamed files. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19428 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-10 00:50:11 +00:00
Chris Lattner
8136d1f8cb Constant fold shifts, turning this loop: 
.LBB_Z5test0PdS__3:     # no_exit.1
        fldl data(,%eax,8)
        fldl 24(%esp)
        faddp %st(1)
        fstl 24(%esp)
        incl %eax
        movl $16000, %ecx
        sarl $3, %ecx
        cmpl %eax, %ecx
        fstpl 16(%esp)
        #FP_REG_KILL
        jg .LBB_Z5test0PdS__3   # no_exit.1

into:

.LBB_Z5test0PdS__3:     # no_exit.1
        fldl data(,%eax,8)
        fldl 24(%esp)
        faddp %st(1)
        fstl 24(%esp)
        incl %eax
        cmpl $2000, %eax
        fstpl 16(%esp)
        #FP_REG_KILL
        jl .LBB_Z5test0PdS__3   # no_exit.1


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19427 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-10 00:07:15 +00:00
Reid Spencer
bccc8abc79 Rename Unix/*.cpp and Win32/*.cpp to have a *.inc suffix so that the silly 
gdb debugger doesn't get confused on which file it is reading (the one in
lib/System or the one in lib/System/{Win32,Unix})


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19426 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-09 23:29:00 +00:00
Chris Lattner
5cdcc58d51 Add some folds for == and != comparisons. This allows us to 
codegen this loop in stepanov:

no_exit.i:              ; preds = %entry, %no_exit.i, %then.i, %_Z5checkd.exit
        %i.0.0 = phi int [ 0, %entry ], [ %i.0.0, %no_exit.i ], [ %inc.0, %_Z5checkd.exit ], [ %inc.012, %then.i ]              ; <int> [#uses=3]
        %indvar = phi uint [ %indvar.next, %no_exit.i ], [ 0, %entry ], [ 0, %then.i ], [ 0, %_Z5checkd.exit ]          ; <uint> [#uses=3]
        %result_addr.i.0 = phi double [ %tmp.4.i.i, %no_exit.i ], [ 0.000000e+00, %entry ], [ 0.000000e+00, %then.i ], [ 0.000000e+00, %_Z5checkd.exit ]          ; <double> [#uses=1]
        %first_addr.0.i.2.rec = cast uint %indvar to int                ; <int> [#uses=1]
        %first_addr.0.i.2 = getelementptr [2000 x double]* %data, int 0, uint %indvar           ; <double*> [#uses=1]
        %inc.i.rec = add int %first_addr.0.i.2.rec, 1           ; <int> [#uses=1]
        %inc.i = getelementptr [2000 x double]* %data, int 0, int %inc.i.rec            ; <double*> [#uses=1]
        %tmp.3.i.i = load double* %first_addr.0.i.2             ; <double> [#uses=1]
        %tmp.4.i.i = add double %result_addr.i.0, %tmp.3.i.i            ; <double> [#uses=2]
        %tmp.2.i = seteq double* %inc.i, getelementptr ([2000 x double]* %data, int 0, int 2000)                ; <bool> [#uses=1]
        %indvar.next = add uint %indvar, 1              ; <uint> [#uses=1]
        br bool %tmp.2.i, label %_Z10accumulateIPddET0_T_S2_S1_.exit, label %no_exit.i

To this:

.LBB_Z4testIPddEvT_S1_T0__1:    # no_exit.i
        fldl data(,%eax,8)
        fldl 16(%esp)
        faddp %st(1)
        fstpl 16(%esp)
        incl %eax
        movl %eax, %ecx
        shll $3, %ecx
        cmpl $16000, %ecx
        #FP_REG_KILL
        jne .LBB_Z4testIPddEvT_S1_T0__1 # no_exit.i

instead of this:

.LBB_Z4testIPddEvT_S1_T0__1:    # no_exit.i
        fldl data(,%eax,8)
        fldl 16(%esp)
        faddp %st(1)
        fstpl 16(%esp)
        incl %eax
        leal data(,%eax,8), %ecx
        leal data+16000, %edx
        cmpl %edx, %ecx
        #FP_REG_KILL
        jne .LBB_Z4testIPddEvT_S1_T0__1 # no_exit.i


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19425 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-09 20:52:51 +00:00
Jeff Cohen
1d7b5de7ee Add last four createXxxPass functions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19424 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-09 20:42:52 +00:00
Jeff Cohen
fd161e964a Fix VC++ compilation error 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19423 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-09 20:41:56 +00:00
Chris Lattner
ea946cdb1b Print the DAG out more like a DAG in nested format. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19422 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-09 20:38:33 +00:00
Chris Lattner
49d24716a4 Print out nodes sorted by their address to make it easier to find them in a list. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19421 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-09 20:26:36 +00:00
Chris Lattner
bd9f0eefb2 Codegen (Reg|imm)+&GV as an LEA, because we cannot put it into the immediate field 
of an ADDri (due to current restrictions on MachineOperand :( ).  This allows
us to generate:

        leal Data+16000, %edx

instead of:

        movl $Data, %edx
        addl $16000, %edx


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19420 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-09 20:20:29 +00:00
Chris Lattner
abd2182875 Add a simple transformation. This allows us to compile one of the inner 
loops in stepanov to this:

.LBB_Z5test0PdS__2:     # no_exit.1
        fldl data(,%eax,8)
        fldl 24(%esp)
        faddp %st(1)
        fstl 24(%esp)
        incl %eax
        cmpl $2000, %eax
        fstpl 16(%esp)
        #FP_REG_KILL
        jl .LBB_Z5test0PdS__2

instead of this:

.LBB_Z5test0PdS__2:     # no_exit.1
        fldl data(,%eax,8)
        fldl 24(%esp)
        faddp %st(1)
        fstl 24(%esp)
        incl %eax
        movl $data, %ecx
        movl %ecx, %edx
        addl $16000, %edx
        subl %ecx, %edx
        movl %edx, %ecx
        sarl $2, %ecx
        shrl $29, %ecx
        addl %ecx, %edx
        sarl $3, %edx
        cmpl %edx, %eax
        fstpl 16(%esp)
        #FP_REG_KILL
        jl .LBB_Z5test0PdS__2

The old instruction selector produced:

.LBB_Z5test0PdS__2:     # no_exit.1
        fldl 24(%esp)
        faddl data(,%eax,8)
        fstl 24(%esp)
        movl %eax, %ecx
        incl %ecx
        incl %eax
        leal data+16000, %edx
        movl $data, %edi
        subl %edi, %edx
        movl %edx, %edi
        sarl $2, %edi
        shrl $29, %edi
        addl %edi, %edx
        sarl $3, %edx
        cmpl %edx, %ecx
        fstpl 16(%esp)
        #FP_REG_KILL
        jl .LBB_Z5test0PdS__2   # no_exit.1

Which is even worse!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19419 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-09 20:09:57 +00:00
Chris Lattner
250208587d Fix copy and pasto's for FP -> Int. This fixes fldry 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19418 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-09 19:49:59 +00:00
Chris Lattner
38d6be5d49 Fix a bug legalizing call instructions (make sure to remember all result 
values), and eliminate some switch statements.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19417 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-09 19:43:23 +00:00
Chris Lattner
513e52ec4e Fix a minor bug legalizing dynamic_stackalloc. This allows us to compile 
std::__pad<wchar_t, std::char_traits<wchar_t> >::_S_pad(std::ios_base&, wchar_t, wchar_t*, wchar_t const*, int, int, bool)

from libstdc++


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19416 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-09 19:07:54 +00:00
Chris Lattner
fa404e8a76 Teach legalize to deal with DYNAMIC_STACKALLOC (aka a dynamic llvm alloca) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19415 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-09 19:03:49 +00:00
Chris Lattner
590d800a12 Initial implementation of FP->INT and INT->FP casts 
Also, fix zero_extend from bool to i8, which fixes Shootout/objinst.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19414 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-09 18:52:44 +00:00
Jeff Cohen
2611dd4448 Get lib/Analysis/DataStructure to compile with VC++ 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19412 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-09 04:18:28 +00:00
Jeff Cohen
12f82b7e37 Workaround a VC++ bug. Microsoft puts the hash_map class in namespace stdext, but 
this classes uses a utility function in namespace std.  But Microsoft apparently
assumes everyone will "using namespace std;".  As LLVM doesn't....  Add a
"use std::_Distance;" to get it working.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19411 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-09 04:13:09 +00:00
Chris Lattner
6e7c47c12d Fix a subtle bug involving constant expr casts from int to fp 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19410 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-09 01:49:29 +00:00
Chris Lattner
ee749d7488 Handle static alloca arguments to PHI nodes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19409 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-09 01:16:24 +00:00
Chris Lattner
1482458b23 Implement varargs and returnaddress/frameaddress intrinsics. With this 
patch, all of SingleSource/UnitTests passes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19408 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-09 00:01:27 +00:00
Chris Lattner
39ae362279 Use new interfaces to correctly lower varargs and return/frame address intrinsics. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19407 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-09 00:00:49 +00:00
Chris Lattner
f19ae7df65 Add interfaces to lower varargs and return/frame address intrinsics. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19406 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-09 00:00:31 +00:00
Jeff Cohen
b56013dda5 Test fails on all platforms, not just linux 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19405 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-08 23:44:03 +00:00
Chris Lattner
64e14b1679 Add support for llvm.setjmp and longjmp. Only 3 SingleSource/UnitTests fail now. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19404 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-08 22:48:57 +00:00
Jeff Cohen
906b20a1d7 Fix VC++ compilation error 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19403 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-08 22:44:06 +00:00
Jeff Cohen
534927d82d Add even more missing createXxxPass functions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19402 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-08 22:01:16 +00:00
Chris Lattner
c82a6c883e rename linscan -> LLCBETA as it should be 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19401 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-08 21:03:58 +00:00
Chris Lattner
b0802651bf Okay 15th time is the charm. Looking at the vector size is useless as it 
gets clobbered by a previous statement.  This fixes all calls finally.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19399 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-08 20:51:36 +00:00
Chris Lattner
6cc70ef0f9 Okay, my off by one was actually off by two. This fixes Generic/2003-07-07-BadLongConst.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19398 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-08 20:39:31 +00:00
Chris Lattner
e3304a3d24 Tighten up assertions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19397 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-08 20:35:13 +00:00
Chris Lattner
ce45d65d9a Fix off by one error 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19396 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-08 20:31:34 +00:00
Chris Lattner
7d7a0ed4ec Allow arrays to have more than 4G elements. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19395 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-08 20:19:51 +00:00
Chris Lattner
723a912261 Allow array types to have 64-bit size. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19394 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-08 20:19:27 +00:00
Jeff Cohen
e269a1ac1c Use size_t instead of long to represent memory usage. long is 32 bits 
on 64-bit Windows.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19393 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-08 20:15:57 +00:00
Chris Lattner
9dacd128b4 Silence warnings 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19392 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-08 20:13:44 +00:00
Chris Lattner
813c815282 Silence VS warnings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19391 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-08 20:13:19 +00:00
Chris Lattner
a8101c163d Silence VS warnings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19390 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-08 20:07:03 +00:00
Chris Lattner
d564496b46 Silence VS warnings 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19389 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-08 20:05:34 +00:00
Chris Lattner
dea18b6c0d Silence VS warnings 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19388 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-08 19:59:10 +00:00
Chris Lattner
190f3ba2aa Adjust prototype 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19387 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-08 19:57:49 +00:00
Chris Lattner
28696bee02 Silence warnings from VS 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19386 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-08 19:55:00 +00:00
Chris Lattner
5e5fb942e6 Silence VS warnings 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19385 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-08 19:53:50 +00:00
Chris Lattner
f26bc8ef48 Silence VS warnings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19384 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-08 19:52:31 +00:00
Chris Lattner
22bc934720 Fix VS warnings 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19383 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-08 19:48:40 +00:00
Chris Lattner
4d0801b243 Fix VS warnings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19382 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-08 19:45:31 +00:00
Chris Lattner
652f3cf76f Fix uint64_t -> unsigned VS warnings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19381 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-08 19:42:22 +00:00
Chris Lattner
d4bc564531 Silence VS warnings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19380 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-08 19:37:20 +00:00
Chris Lattner
2cc34627bb Silence warnings 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19379 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-08 19:34:41 +00:00