317332fc2a
Start inferring side effect information more aggressively, and fix many bugs in the
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x86 backend where instructions were not marked maystore/mayload, and perf issues where
instructions were not marked neverHasSideEffects. It would be really nice if we could
write patterns for copy instructions.
I have audited all the x86 instructions down to MOVDQAmr. The flags on others and on
other targets are probably not right in all cases, but no clients currently use this
info that are enabled by default.
llvm-svn: 45829
2008-01-10 07:59:24 +00:00
4c1f731905
Clearify the meaning of immutable StackObject.
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llvm-svn: 45828
2008-01-10 07:19:43 +00:00
70ddafaf45
Fix a crash on code like: let x = 1 {x
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llvm-svn: 45827
2008-01-10 07:01:53 +00:00
2e38f2458c
rename X86InstrX86-64.td -> X86Instr64bit.td
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llvm-svn: 45826
2008-01-10 05:50:42 +00:00
520d4adad3
add SDNPSideEffect node property declaration
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llvm-svn: 45825
2008-01-10 05:48:23 +00:00
aca7ca3730
remove explicit sets of 'neverHasSideEffects' that can now be
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inferred from the instr patterns.
llvm-svn: 45824
2008-01-10 05:45:39 +00:00
86c458a178
if an instr lacks a pattern, assume it has side effects (unless never has s-e is true).
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llvm-svn: 45823
2008-01-10 05:40:54 +00:00
42c63ef96e
start inferring 'no side effects'.
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llvm-svn: 45822
2008-01-10 05:39:30 +00:00
94de7bc3aa
get def use info more correct.
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llvm-svn: 45821
2008-01-10 05:12:37 +00:00
aa8c904dfc
Added some text about the ccc script provided by Sanghyeon Seo.
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llvm-svn: 45820
2008-01-10 04:59:05 +00:00
9e69654461
Infer mayload
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llvm-svn: 45819
2008-01-10 04:44:48 +00:00
c72335878d
add SDNPMayLoad to the 'load' sdnode definition. This is enough to get all the x86
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instructions (with patterns) that load memory marked, for example.
llvm-svn: 45818
2008-01-10 04:44:32 +00:00
1ca2068227
realize that instructions who match intrinsics that read memory read memory.
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Also, instructions with any nodes that are SDNPMayLoad also read memory.
llvm-svn: 45817
2008-01-10 04:38:57 +00:00
f171482a66
verify that the frame index is immutable before remat'ing (still disabled)
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or being side-effect free.
llvm-svn: 45816
2008-01-10 04:16:31 +00:00
d445b8813f
Don't use LiveVariables::VarInfo::DefInst.
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llvm-svn: 45815
2008-01-10 03:12:54 +00:00
0f8c7c4a73
Codegen improvement has reduced one spill.
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llvm-svn: 45814
2008-01-10 02:54:40 +00:00
a26552493b
Mark byval parameter stack objects mutable for now.
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llvm-svn: 45813
2008-01-10 02:24:25 +00:00
301b0cade5
Add a isImmutable bit to StackObject. Fixed stack objects are immutable (in the function) unless specified otherwise.
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llvm-svn: 45812
2008-01-10 02:18:37 +00:00
7ecb3b79c7
Emit unused EH frames for weak definitions on Darwin,
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because assembler/linker can't cope with weak absolutes.
PR 1880.
llvm-svn: 45811
2008-01-10 02:03:30 +00:00
2cbf2f39ee
add support for the GCC -include option.
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llvm-svn: 45810
2008-01-10 01:53:41 +00:00
77133e6d30
Compiler driver
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llvm-svn: 45809
2008-01-10 01:43:47 +00:00
bceeefdc9c
Fix some 80 col violations
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llvm-svn: 45808
2008-01-10 01:43:14 +00:00
d2cdb97747
Ted apparently likes crazy whitespace at the end of line. Crush his spirit by
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removing them, fitting the file into 80 columns. :)
llvm-svn: 45807
2008-01-10 01:41:55 +00:00
7262fca0a6
Put return type of synthesize method on same line as method declaration, space after method declaration header.
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llvm-svn: 45806
2008-01-10 01:39:52 +00:00
4f45cef2f9
Get rid of all uses of LiveVariables::VarInfo::DefInst in favor of the equivalent API from
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MachineRegisterInfo. Once all clients are switched over, the former will be going away.
llvm-svn: 45805
2008-01-10 01:36:43 +00:00
cb0e1bcf0c
provide def_* and use_* iterators in addition to reg_* iterators.
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The first only returns definitions of a register, the second only
returns uses, the third returns both.
llvm-svn: 45803
2008-01-10 01:01:27 +00:00
3d55c84c99
Added "InfeasibleEdge" to represent an infeasible state transition.
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llvm-svn: 45802
2008-01-10 00:58:25 +00:00
51b8e20ccf
Add more comments explaining the basics of how the decision of when to rename and when to insert
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copies is made.
llvm-svn: 45799
2008-01-10 00:47:01 +00:00
fead113fe0
Do not use the stack pointer directly, issue a copyfromreg instead. Otherwise we can end up with something like ADD32ri %esp, x which two-address pass won't like.
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llvm-svn: 45798
2008-01-10 00:37:26 +00:00
8958a78576
Get rid of the isKillInst predicate. LiveVariables already provides this information.
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llvm-svn: 45797
2008-01-10 00:33:11 +00:00
ec79bba97f
Fix PR1845 and rdar://5676945. Generic vectors smaller
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than hardware supported type will be scalarized, so we
can infer their alignment from that info.
We now codegen pr1845 into:
_boolVectorSelect:
lbz r2, 0(r3)
stb r2, -16(r1)
blr
llvm-svn: 45796
2008-01-10 00:30:57 +00:00
e34d7d0e24
new testcase for PR1845
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llvm-svn: 45795
2008-01-10 00:30:38 +00:00
db701b47d2
Pass rewritten output to 'clang' for verification.
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llvm-svn: 45794
2008-01-10 00:30:24 +00:00
82ae0152a7
Allow messaging expression as foreach's collection expression.
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llvm-svn: 45793
2008-01-10 00:24:29 +00:00
73d1017871
Remove comments that do not correspond to anything after recent refactoring.
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llvm-svn: 45792
2008-01-10 00:09:10 +00:00
1c8152ba03
Copies need to be inserted before the first terminator, not at the end of the block.
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llvm-svn: 45791
2008-01-10 00:01:41 +00:00
a385fb8c2e
Add a FIXME to commit r45784. Thanks mrs!
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llvm-svn: 45790
2008-01-09 23:44:05 +00:00
e6b0ec8b5e
Fix Sema::ActOnDeclarator() to call MergeFunctionDecl for function decls that aren't in scope. Since C functions are in a flat namespace, we need to give them special treatment (when compared with variables and typedefs).
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llvm-svn: 45789
2008-01-09 23:34:55 +00:00
24ea11d4e0
Renamed various traits and classes. Added "Infeasible" bit to ExplodedNodeImpl
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so that nodes can be marked as representing an infeasible program point. This
flag lets the path-sensitive solver know that no successors should be generated
for such nodes.
llvm-svn: 45788
2008-01-09 23:11:36 +00:00
0e400d4cb7
Special copy SUnit's do not have SDNode's.
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llvm-svn: 45787
2008-01-09 23:01:55 +00:00
84ab850e46
Renamed Stmt***Edge and ***StmtEdge (where *** = "Stmt" or "Blk") classes to
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BExpr*** and ***BExpr respectively. These edges represent program locations
between the entrance/exit of a block and Block-level Expressions.
Also added ***SExpr and SExpr*** ProgramEdges to represent the locations in the
program between the evaluation of subexpressions and block-level expressions.
llvm-svn: 45786
2008-01-09 22:52:38 +00:00
fed4cce0cc
Removed some files related to the path-sensitive solver as part of some
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code restructuring. (new files will be introduced shortly)
llvm-svn: 45785
2008-01-09 22:49:37 +00:00
c6edcbdb5d
Fix ASTContext::typesAreCompatible to allow for int/enum compatibility (C99 6.7.2.2p4).
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Fix Sema::MergeFunctionDecl to allow for function type compatibility (by using the predicate on ASTContext). Function types don't have to be identical to be compatible...
llvm-svn: 45784
2008-01-09 22:43:08 +00:00
436db42a3c
Clean up StrongPHIElimination a bit, and add some more comments to the internal structures. There's
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still more work to do on this front.
llvm-svn: 45783
2008-01-09 22:40:54 +00:00
08ddb8c55c
Teach Sema::ActOnCompoundLiteral about constraint C99 6.5.2.5p3.
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llvm-svn: 45782
2008-01-09 20:58:06 +00:00
48f22f0b80
Fix compile failures with g++-4.3.
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llvm-svn: 45781
2008-01-09 19:42:09 +00:00
204e4a27b6
many cleanups and fixed, contributed by Sam Bishop
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llvm-svn: 45780
2008-01-09 19:28:50 +00:00
119d81a4f4
Fix isIntegerConstantExpr to compare against zero for casts to bool instead of
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truncating. This allows us to compile:
void foo() {
static _Bool foo = 4;
}
into:
@foo1 = internal global i8 1
instead of:
@foo1 = internal global i8 4
llvm-svn: 45779
2008-01-09 18:59:34 +00:00
41a1ef0dfe
implement proper support for _Bool in memory, which is usually i8, not i1.
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This fixes a crash reported by Seo Sanghyeon
llvm-svn: 45778
2008-01-09 18:47:25 +00:00
6fa7516bc9
Type-cast RHS of assignment to prevent warning compiling rewritten foreach code.
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llvm-svn: 45777
2008-01-09 18:15:42 +00:00
Chris Lattner