CMake: Added notes pointing to the LLVM CMake documentation.
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CMake: defines and uses macro add_llvm_definitions for keeping track
of compiler parameters explicitly added by the build
specification. This macro replaces the cmake built-in
`add_definitions'.
Detects glibc and defines _GNU_SOURCE accordingly.
Resolves bug 3882.
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of compiler parameters explicitly added by the build
specification. This macro replaces the cmake built-in
`add_definitions'.
Detects glibc and defines _GNU_SOURCE accordingly.
Resolves bug 3882.
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Fix some HTML validation errors.
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General clean-up of the bitcode format documentation. Having the paragraphs
formatted the same, putting words in <tt> tags, adding —s, etc.
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formatted the same, putting words in <tt> tags, adding —s, etc.
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Try SSE2?
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CloneModule stores the BasicBlock mapping in ValueMap. There's no need to
recompute it. This fixes a O(n^2) in number of blocks when reducing a crash.
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recompute it. This fixes a O(n^2) in number of blocks when reducing a crash.
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Remove bogus include.
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Add support for embedded metadata to LLVM. This introduces two new types of
Constant, MDString and MDNode which can only be used by globals with a name
that starts with "llvm." or as arguments to a function with the same naming
restriction.
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Constant, MDString and MDNode which can only be used by globals with a name
that starts with "llvm." or as arguments to a function with the same naming
restriction.
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Fix test on non-x86 platforms.
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Test commit access to LLVM with some minor narcissism.
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Wrap some lines to fix indentation problems.
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Fix some comments.
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Duplicate entry.
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"This adds a getName() method to TargetRegisterClass, just like in TargetRegisterInfo.
This makes debugging register classes a bit easier."
Patch by Jakob Stoklund Olesen!
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This makes debugging register classes a bit easier."
Patch by Jakob Stoklund Olesen!
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"Add documentation about the fix for missing x86
target library in windows under the "Common problems" section."
Patch by Stefanus Du Toit!
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target library in windows under the "Common problems" section."
Patch by Stefanus Du Toit!
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Fix a TargetLowering optimization so that it doesn't duplicate
loads when an input node has multiple uses.
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loads when an input node has multiple uses.
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Add fast path for raw_ostream output of strings.
- Particularly nice for small constant strings, which get optimized
down nicely. On a synthetic benchmark writing out "hello" in a
loop, this is about 2x faster with gcc and 3x faster with
llvm-gcc. llc on insn-attrtab.bc from 403.gcc is about .5% faster.
- I tried for a fancier solution which wouldn't increase code size as
much (by trying to match constant arrays), but can't quite make it
fly.
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- Particularly nice for small constant strings, which get optimized
down nicely. On a synthetic benchmark writing out "hello" in a
loop, this is about 2x faster with gcc and 3x faster with
llvm-gcc. llc on insn-attrtab.bc from 403.gcc is about .5% faster.
- I tried for a fancier solution which wouldn't increase code size as
much (by trying to match constant arrays), but can't quite make it
fly.
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CMake: tools/llvm-config/CMakeLists.txt: Use ! instead of comma as
separator in sed scripts. Resolves Bug 3881.
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separator in sed scripts. Resolves Bug 3881.
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CMake: removed IA64AsmPrinter.cpp from lib/Target/IA64/CMakeLists.txt
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Separate MIPS asmprinter
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Fix target library name
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Fix comment
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Move IA64 asmprinter to separate library
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Added a x86 dag combine to increase the chances to use a
movq for v2i64 on x86-32.
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movq for v2i64 on x86-32.
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update some syntax
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Work around an apparent GCC miscompilation by specializing different,
this fixes a regression on some compilers from r68147.
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this fixes a regression on some compilers from r68147.
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Delete ISD::INSERT_SUBREG and ISD::EXTRACT_SUBREG, which are unused.
Note that these are distinct from TargetInstrInfo::INSERT_SUBREG
and TargetInstrInfo::EXTRACT_SUBREG, which are used.
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Note that these are distinct from TargetInstrInfo::INSERT_SUBREG
and TargetInstrInfo::EXTRACT_SUBREG, which are used.
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correct patch
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add patch to go along with r68350
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use higher level APIs.
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add missing *
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Fixed build warnings.
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To convert the StopPoint insn into an assembler directive by ISel, we need to have access to the line number field. So we convert that info as an operand by custom handling DBG_STOPPOINT in legalize.
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Params are not being generated as static globals now. The caller passes them onto the callee's stack directly and the callee loads the argvals from its own stack. Clang generated frameindexes validatd by recalculating the stack as if all frameindexes represent 1-byte slots.
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fix overflow checks in SmallVector:
"The code was doing "if (End+NumInputs > Capacity) ...". If End is
close to 0xFFFFFFFF and NumInputs is large, it'll overflow, the
condition will come out false, and the vector won't grow to
accommodate the new elements, and the program will crash in memmove."
Patch by Jeffrey Yasskin!
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"The code was doing "if (End+NumInputs > Capacity) ...". If End is
close to 0xFFFFFFFF and NumInputs is large, it'll overflow, the
condition will come out false, and the vector won't grow to
accommodate the new elements, and the program will crash in memmove."
Patch by Jeffrey Yasskin!
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Fix build on Linux.
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Reapply r68211, with the miscompilations it caused fixed.
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Make the constants fit.
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Clean up pass manager cache after each run.
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silence warning in release-asserts build.
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Add llvm::Triple class for abstracting access to target triples.
- The code is silly, I'm just amusing myself. Rewrite to be efficient
if you like. :)
Also, if you wish to debate the proper names of the triple components
I'm all ears.
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- The code is silly, I'm just amusing myself. Rewrite to be efficient
if you like. :)
Also, if you wish to debate the proper names of the triple components
I'm all ears.
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Fixed file header comment.
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Added tests for math utility functions; fixed another test's header comment.
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Fixed spelling.
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Remove dead code.
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add this to SVN to allow collaborative hacking.
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Add range insert method for DenseSet and define DenseMapInfo for chars.
Patch by Kevin Fan!
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Patch by Kevin Fan!
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Recognize arm triplets.
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Use CHAR_BIT instead of hard-coding 8 in several places where it
is appropriate. This helps visually differentiate host-oriented
calculations from target-oriented calculations.
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is appropriate. This helps visually differentiate host-oriented
calculations from target-oriented calculations.
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Constify method to make VC++ happy. Patch by Brian Diekelman!
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Use LLVM type names instead of C type names in comments, to be
less ambiguous and less C-specific.
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less ambiguous and less C-specific.
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Fix PR3862: Recognize some ARM-specific constraints for immediates in inline
assembly.
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assembly.
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Revert r68172. It caused regressions in
Applications/Burg/burg
Applications/ClamAV/clamscan
and many other tests.
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Applications/Burg/burg
Applications/ClamAV/clamscan
and many other tests.
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Fixed spelling.
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CMake: Have generated Xcode projects also contain the LLVM header files.
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Detect that we're building from a git checkout like we do for cvs and svn.
Based on a patch by Nicolas Trangez on the unladen-swallow mailing list!
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Based on a patch by Nicolas Trangez on the unladen-swallow mailing list!
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hopefully fix an apparent build error on windows.
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fix a serious regression I introduced in my previous patch.
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Enhance GVN to propagate simple conditionals. This fixes PR3921.
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include Makefile.common before using $(BuildMode) to get its definition
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* Fixed spelling of `invertible'
* Simplified if statement
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* Simplified if statement
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Allow the use of pointers to const within PointerUnion.
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add a converting operator
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reimplement BitcodeReaderValueList in terms of WeakVH instead of making
it be an LLVM IR User object.
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it be an LLVM IR User object.
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Make the key of ValueRankMap an AssertingVH, so that we die violently
if it dangles.
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if it dangles.
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Add two new classes: WeakVH and AssertingVH. These are both "ValueHandles",
which are effectively smart pointers to Value*'s. They are both very light
weight and simple, and react to values being destroyed or being RAUW'd.
WeakVN does a best effort to follow a value around, including through RAUW
operations and will get nulled out of the value is destroyed. This is useful
for the eventual "metadata that references a value" work, because it is a
reference to a value that does not show up on its use_* list.
AssertingVH is a pointer that compiles down to a dumb raw pointer when
assertions are disabled. When enabled, it emits an assertion if the
pointed-to value is destroyed while it is still being referenced. This
is very useful for Maps and other things, and should have caught the recent
bugs in CallGraph and Reassociate, for example.
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which are effectively smart pointers to Value*'s. They are both very light
weight and simple, and react to values being destroyed or being RAUW'd.
WeakVN does a best effort to follow a value around, including through RAUW
operations and will get nulled out of the value is destroyed. This is useful
for the eventual "metadata that references a value" work, because it is a
reference to a value that does not show up on its use_* list.
AssertingVH is a pointer that compiles down to a dumb raw pointer when
assertions are disabled. When enabled, it emits an assertion if the
pointed-to value is destroyed while it is still being referenced. This
is very useful for Maps and other things, and should have caught the recent
bugs in CallGraph and Reassociate, for example.
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teach PointerLikeTypeTraits that all pointers to pointers may only be 4-byte aligned.
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add some accessors so I can play games with DenseMaps.
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13 years agoThrottle back "fold select into operand" transformation. InstCombine should not gener...
Throttle back "fold select into operand" transformation. InstCombine should not generate selects of two constants unless they are selects of 0 and 1.
e.g.
define i32 @t1(i32 %c, i32 %x) nounwind {
%t1 = icmp eq i32 %c, 0
%t2 = lshr i32 %x, 18
%t3 = select i1 %t1, i32 %t2, i32 %x
ret i32 %t3
}
was turned into
define i32 @t2(i32 %c, i32 %x) nounwind {
%t1 = icmp eq i32 %c, 0
%t2 = select i1 %t1, i32 18, i32 0
%t3 = lshr i32 %x, %t2
ret i32 %t3
}
For most targets, that means materializing two constants and then a select. e.g. On x86-64
movl %esi, %eax
shrl $18, %eax
testl %edi, %edi
cmovne %esi, %eax
ret
=>
xorl %eax, %eax
testl %edi, %edi
movl $18, %ecx
cmovne %eax, %ecx
movl %esi, %eax
shrl %cl, %eax
ret
Also, the optimizer and codegen can reason about shl / and / add, etc. by a constant. This optimization will hinder optimizations using ComputeMaskedBits.
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e.g.
define i32 @t1(i32 %c, i32 %x) nounwind {
%t1 = icmp eq i32 %c, 0
%t2 = lshr i32 %x, 18
%t3 = select i1 %t1, i32 %t2, i32 %x
ret i32 %t3
}
was turned into
define i32 @t2(i32 %c, i32 %x) nounwind {
%t1 = icmp eq i32 %c, 0
%t2 = select i1 %t1, i32 18, i32 0
%t3 = lshr i32 %x, %t2
ret i32 %t3
}
For most targets, that means materializing two constants and then a select. e.g. On x86-64
movl %esi, %eax
shrl $18, %eax
testl %edi, %edi
cmovne %esi, %eax
ret
=>
xorl %eax, %eax
testl %edi, %edi
movl $18, %ecx
cmovne %eax, %ecx
movl %esi, %eax
shrl %cl, %eax
ret
Also, the optimizer and codegen can reason about shl / and / add, etc. by a constant. This optimization will hinder optimizations using ComputeMaskedBits.
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Fully general expansion of integer shift of any size.
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i128 shift libcalls are not available on x86.
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Reapply 68073, with fixes. EH Landing-pad basic blocks are not
entered via fall-through. Don't miss fallthroughs from blocks
terminated by conditional branches. Also, move
isOnlyReachableByFallthrough out of line.
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entered via fall-through. Don't miss fallthroughs from blocks
terminated by conditional branches. Also, move
isOnlyReachableByFallthrough out of line.
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Do not pass '-relocation-model=pic' to llc.
Does not work well on 32 bit targets. Bug reported by Albert Graef.
This patch also adds new "-Wllc,option" syntax to pass options to llc.
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Does not work well on 32 bit targets. Bug reported by Albert Graef.
This patch also adds new "-Wllc,option" syntax to pass options to llc.
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Stop guessing, start thinking, and make PointerUnion3::is actually be correct.
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Add an explicit -asm-verbose to these tests, to make it
possible to run the tests with -asm-verbose defaulting
to false.
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possible to run the tests with -asm-verbose defaulting
to false.
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Update call graph after inlining invoke.
Patch by Jay Foad.
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Patch by Jay Foad.
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Add llvm::sys::getHostTriple and remove
llvm::sys::getOS{Name,Version}.
Right now the implementation just derives from LLVM_HOSTTRIPLE (which
is wrong, but it doesn't look like we have a define for the target
triple). Ideally this routine would actually be able to compute the
triple for targets we care about.
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llvm::sys::getOS{Name,Version}.
Right now the implementation just derives from LLVM_HOSTTRIPLE (which
is wrong, but it doesn't look like we have a define for the target
triple). Ideally this routine would actually be able to compute the
triple for targets we care about.
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Minor top-level comment fix.
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Tidy up some comments.
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Add a comment.
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remove unused arguments.
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Really temporarily revert r68073.
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Oy! When reverting r68073, I added in experimental code. Sorry...
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Remove the "fast" cases for spill and restore point determination, as these were subtlely wrong in obscure cases. Patch the testcase
to account for this change.
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to account for this change.
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Revert r68073. It's causing a failure in the Apple-style builds.
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shrink subclassid, liberating some bits for future (ab)use.
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Fix live-out reg logic to not insert over-aggressive AssertZExt
instructions. This fixes lua.
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instructions. This fixes lua.
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X86 address mode isel tweak. If the base of the address is also used by a CopyToReg (i.e. it's likely live-out), do not fold the sub-expressions into the addressing mode to avoid computing the address twice. The CopyToReg use will be isel'ed to a LEA, re-use it for address instead.
This is not yet enabled.
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This is not yet enabled.
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Really, really fix PointerUnion3::is
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Except in asm-verbose mode, avoid printing labels for blocks that are
only reachable via fall-through edges. This dramatically reduces the
number of labels printed, and thus also the number of labels the
assembler must parse and remember.
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only reachable via fall-through edges. This dramatically reduces the
number of labels printed, and thus also the number of labels the
assembler must parse and remember.
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Loop Index Split can eliminate a loop if it can determin if loop body is executed only once. There was a bug in determining IV based value of the iteration for which the loop body is executed. Fix it.
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Make PointerUnion3::get work properly
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When optimzing a mul by immediate into two, the resulting mul's should get a x86 specific node to avoid dag combiner from hacking on them further.
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Turn a 2-address instruction into a 3-address one when it's profitable even if the two-address operand is killed.
e.g.
%reg1024<def> = MOV r1
%reg1025<def> = ADD %reg1024, %reg1026
r0 = MOV %reg1025
If it's not possible / profitable to commute ADD, then turning ADD into a LEA saves a copy.
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e.g.
%reg1024<def> = MOV r1
%reg1025<def> = ADD %reg1024, %reg1026
r0 = MOV %reg1025
If it's not possible / profitable to commute ADD, then turning ADD into a LEA saves a copy.
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update comment.
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Balance out quote in debug output.
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Fix grammar-o in comment.
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add a PointerUnion3 class and generalize PointerUnion to work with
anything pointer-like, which may or may not actually be a pointer.
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anything pointer-like, which may or may not actually be a pointer.
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fix the PointerLikeTypeTraits specialization for PointerIntPair to
allow the traits to be specified as well.
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allow the traits to be specified as well.
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Constify arguments in isSuccessor and isLayoutSuccessor.
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