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1424 Commits

Author SHA1 Message Date
Alkis Evlogimenos
d0656fc94d Lower llvm.isunordered(a, b) into a != a | b != b. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20382 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-01 02:07:58 +00:00
Chris Lattner
0942b7caf1 Lower prefetch to a noop, patch contributed by Justin Wick! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20375 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-02-28 19:27:23 +00:00
Chris Lattner
84734ce8ef Fix a bug in the 'store fpimm, ptr' -> 'store intimm, ptr' handling code. 
Changing 'op' here caused us to not enter the store into a map, causing
reemission of the code!!  In practice, a simple loop like this:

no_exit:                ; preds = %no_exit, %entry
        %indvar = phi uint [ %indvar.next, %no_exit ], [ 0, %entry ]            ; <uint> [#uses=3]
        %tmp.4 = getelementptr "complex long double"* %P, uint %indvar, uint 0          ; <double*> [#uses=1]
        store double 0.000000e+00, double* %tmp.4
        %indvar.next = add uint %indvar, 1              ; <uint> [#uses=2]
        %exitcond = seteq uint %indvar.next, %N         ; <bool> [#uses=1]
        br bool %exitcond, label %return, label %no_exit

was being code gen'd to:

.LBBtest_1:     # no_exit
        movl %edx, %esi
        shll $4, %esi
        movl $0, 4(%eax,%esi)
        movl $0, (%eax,%esi)
        incl %edx
        movl $0, (%eax,%esi)
        movl $0, 4(%eax,%esi)
        cmpl %ecx, %edx
        jne .LBBtest_1  # no_exit

Note that we are doing 4 32-bit stores instead of 2.  Now we generate:

.LBBtest_1:     # no_exit
        movl %edx, %esi
        incl %esi
        shll $4, %edx
        movl $0, (%eax,%edx)
        movl $0, 4(%eax,%edx)
        cmpl %ecx, %esi
        movl %esi, %edx
        jne .LBBtest_1  # no_exit

This is much happier, though it would be even better if the increment of ESI
was scheduled after the compare :-/


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20265 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-02-22 07:23:39 +00:00
Misha Brukman
d3f03e4b50 Fix compilation errors with VS 2005, patch by Aaron Gray. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20231 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-02-17 21:39:27 +00:00
Chris Lattner
d8658616cf Don't rely on doubles comparing identical to each other, which doesn't work 
for 0.0 and -0.0.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20230 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-02-17 20:17:32 +00:00
Chris Lattner
aa781b3404 Don't sink argument loads into loops or other bad places. This disables folding of argument loads with instructions that are not in the entry block. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20228 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-02-17 19:40:32 +00:00
Chris Lattner
27e192196f Print GEP offsets as signed values instead of unsigned values. On X86, this 
prints:

getelementptr (int* %A, int -1)

as: "(A) - 4" instead of "(A) + 18446744073709551612", which makes the
assembler much happier.

This fixes test/Regression/CodeGen/X86/2005-02-14-IllegalAssembler.ll,
and Benchmarks/Prolangs-C/cdecl with LLC on X86.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20183 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-02-14 21:40:26 +00:00
Chris Lattner
595dc5408a Fix a case where were incorrectly compiled cast from short to int on 64-bit 
targets.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20030 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-02-04 18:39:19 +00:00
Andrew Lenharth
571c9c314f fix constant pointer outputing on 64 bit machines 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20026 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-02-04 13:47:16 +00:00
Chris Lattner
272455b404 Fix yet another memset issue. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19986 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-02-02 03:44:41 +00:00
Chris Lattner
deb692e756 Fix some bugs andrew noticed legalizing memset for alpha 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19969 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-02-01 18:38:28 +00:00
Chris Lattner
bca81448ac Improve conformance with the Misha spelling benchmark suite 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19930 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-30 00:09:23 +00:00
Chris Lattner
9d5d7598db adjust to ilist changes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19924 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-29 18:41:25 +00:00
Chris Lattner
99939d39c9 Alpha doesn't have a native f32 extload instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19880 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-28 22:58:25 +00:00
Chris Lattner
e76ad6de40 implement legalization of truncates whose results and sources need to be 
truncated, e.g. (truncate:i8 something:i16) on a 32 or 64-bit RISC.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19879 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-28 22:52:50 +00:00
Chris Lattner
e560521f1a Get alpha working with memset/memcpy/memmove 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19878 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-28 22:29:18 +00:00
Chris Lattner
13c184de29 CopyFromReg produces two values. Make sure that we remember that both are 
legalized, and actually return the correct result when we legalize the chain first.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19866 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-28 06:27:38 +00:00
Chris Lattner
fed5577066 Silence optimized warnings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19797 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-23 23:19:44 +00:00
Chris Lattner
3563015b0d Simplify/speedup the PEI by not having to scan for uses of the callee saved 
registers.  This information is computed directly by the register allocator
now.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19795 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-23 23:13:12 +00:00
Chris Lattner
786116337e Update physregsused info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19793 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-23 22:55:45 +00:00
Chris Lattner
0648b16c48 Update this pass to set PhysRegsUsed info in MachineFunction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19792 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-23 22:51:56 +00:00
Chris Lattner
b0f31bf19b Update these register allocators to set the PhysRegUsed info in MachineFunction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19791 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-23 22:45:13 +00:00
Chris Lattner
ce9c41e77a Add support for the PhysRegsUsed array. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19789 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-23 22:13:58 +00:00
Chris Lattner
92b9fcea7b Speed this up a bit by making ModifiedRegs a vector<char> not vector<bool> 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19787 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-23 21:45:01 +00:00
Chris Lattner
9c32d3b798 Adjust to changes in SelectionDAG interfaces 
The first half of correct chain insertion for libcalls. This is not enough
to fix Fhourstones yet though.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19781 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-23 04:42:50 +00:00
Chris Lattner
b48da39536 Remove the 3 HACK HACK HACKs I put in before, fixing them properly with 
the new TLI that is available.

Implement support for handling out of range shifts.  This allows us to
compile this code (a 64-bit rotate):

unsigned long long f3(unsigned long long x) {
  return (x << 32) | (x >> (64-32));
}

into this:

f3:
        mov %EDX, DWORD PTR [%ESP + 4]
        mov %EAX, DWORD PTR [%ESP + 8]
        ret

GCC produces this:

$ gcc t.c -masm=intel -O3 -S -o - -fomit-frame-pointer
..
f3:
        push    %ebx
        mov     %ebx, DWORD PTR [%esp+12]
        mov     %ecx, DWORD PTR [%esp+8]
        mov     %eax, %ebx
        mov     %edx, %ecx
        pop     %ebx
        ret

The Simple ISEL produces (eww gross):

f3:
        sub %ESP, 4
        mov DWORD PTR [%ESP], %ESI
        mov %EDX, DWORD PTR [%ESP + 8]
        mov %ECX, DWORD PTR [%ESP + 12]
        mov %EAX, 0
        mov %ESI, 0
        or %EAX, %ECX
        or %EDX, %ESI
        mov %ESI, DWORD PTR [%ESP]
        add %ESP, 4
        ret


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19780 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-23 04:39:44 +00:00
Chris Lattner
ac9dc08c7f Adjust to changes in SelectionDAG interface. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19779 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-23 04:36:26 +00:00
Chris Lattner
68cd65ea68 Get this to work for 64-bit systems. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19763 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-22 23:04:37 +00:00
Chris Lattner
5037a15910 Implicitly defined registers can clobber callee saved registers too! 
This fixes the return-address-not-being-saved problem in the Alpha backend.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19741 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-22 00:49:16 +00:00
Chris Lattner
7cd50cf286 More bugfixes for IA64 shifts. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19739 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-22 00:33:03 +00:00
Chris Lattner
27ff112948 Fix problems with non-x86 targets. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19738 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-22 00:31:52 +00:00
Chris Lattner
a7306db5f7 Add a nasty hack to fix Alpha/IA64 multiplies by a power of two. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19737 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-22 00:20:42 +00:00
Chris Lattner
9bb86f46e1 Remove unneeded line. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19736 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-21 23:43:12 +00:00
Chris Lattner
1e7ceaf0a0 test commit 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19735 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-21 23:38:56 +00:00
Chris Lattner
a93ec3ebfb Unary token factor nodes are unneeded. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19727 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-21 18:01:22 +00:00
Chris Lattner
77e77a6aa0 Refactor libcall code a bit. Initial implementation of expanding int -> FP 
operations for 64-bit integers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19724 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-21 06:05:23 +00:00
Chris Lattner
e5544f851a Simplify the shift-expansion code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19721 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-20 20:29:23 +00:00
Chris Lattner
84f6788044 Expand add/sub into ADD_PARTS/SUB_PARTS instead of a non-existant libcall. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19715 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-20 18:52:28 +00:00
Chris Lattner
17eee18f40 implement add_parts/sub_parts. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19714 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-20 18:50:55 +00:00
Chris Lattner
2c49f27955 Support targets that do not use i8 shift amounts. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19707 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-19 22:31:21 +00:00
Chris Lattner
3ca6a2c72c Add an assertion that would have made more sense to duraid 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19704 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-19 21:32:07 +00:00
Chris Lattner
3d9dffc586 Add support for targets that pass args in registers to calls. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19703 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-19 20:24:35 +00:00
Chris Lattner
1e81b9e511 Fold single use token factor nodes into other token factor nodes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19701 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-19 19:10:54 +00:00
Chris Lattner
ec39a45bdb Realize the individual pieces of an expanded copytoreg/store/load are 
independent of each other.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19700 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-19 18:02:17 +00:00
Chris Lattner
39908e0ce0 Know some identities about tokenfactor nodes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19699 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-19 18:01:40 +00:00
Chris Lattner
88218ef706 Know some simple identities. This improves codegen for (1LL << N). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19698 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-19 17:29:49 +00:00
Chris Lattner
2a6e163edc Just in case, handle something that is both a use and a def. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19696 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-19 17:11:51 +00:00
Chris Lattner
d45be36965 When an instruction moves, make sure to update the VarInfo::Kills list as 
well as all of teh other stuff in livevar. This fixes the compiler crash
on fourinarow last night.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19695 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-19 17:09:15 +00:00
Chris Lattner
c71d6949b9 Use the TargetInstrInfo::commuteInstruction method to commute instructions 
instead of doing it manually.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19685 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-19 07:08:42 +00:00
Chris Lattner
e34b396ab7 Implement a way of expanding shifts. This applies to targets that offer 
select operations or to shifts that are by a constant.  This automatically
implements (with no special code) all of the special cases for shift by 32,
shift by < 32 and shift by > 32.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19679 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-19 04:19:40 +00:00