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r230694 | chaoren | 2015-02-26 14:15:16 -0800 (Thu, 26 Feb 2015) | 16 lines
Fix Bug 20400
Summary:
http://llvm.org/bugs/show_bug.cgi?id=20400
The default triple of i686-pc-linux-gnu for 32 bit linux targets is compatible
but not necessarily identical to the inferior binaries.
Applying Azat Khuzhin's solution of using ArchSpec::IsCompatibleMatch() instead
of ArchSpec::IsExactMatch() when comparing ObjectFile and Modules architecture.
Reviewers: vharron
Subscribers: lldb-commits
Differential Revision: http://reviews.llvm.org/D7897
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llvm-svn: 232574
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r214336 | rafael.espindola | 2014-07-30 17:04:00 -0400 (Wed, 30 Jul 2014) | 9 lines
SimplifyCFG: Avoid miscompilations due to removed lifetime intrinsics.
The lifetime intrinsics need some work in order to make it clear which
optimizations are or are not valid.
For now dropping this optimization avoids a miscompilation.
Patch by Björn Steinbrink.
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llvm-svn: 232544
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r229352 | david.majnemer | 2015-02-15 23:02:09 -0500 (Sun, 15 Feb 2015) | 9 lines
IR: Properly return nullptr when getAggregateElement is out-of-bounds
We didn't properly handle the out-of-bounds case for
ConstantAggregateZero and UndefValue. This would manifest as a crash
when the constant folder was asked to fold a load of a constant global
whose struct type has no operands.
This fixes PR22595.
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llvm-svn: 232512
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llvm-svn: 232369
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r232083 added AsmPrinter::emitInlineAsmStart() before
AsmPrinter::emitInlineAsmEnd(), changing the vtable in an incompatible way.
This patch swaps the declaration order so that the new vtable entry is at the
end of the vtable.
llvm-svn: 232162
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r225521 | tomatabacu | 2015-01-09 15:00:30 +0000 (Fri, 09 Jan 2015) | 1 line
[mips] Add comment which explains why we need to change the assembler options before and after inline asm blocks. NFC.
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llvm-svn: 232084
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r224425 | tomatabacu | 2014-12-17 10:56:16 +0000 (Wed, 17 Dec 2014) | 17 lines
[mips] Set GCC-compatible MIPS asssembler options before inline asm blocks.
Summary:
When generating MIPS assembly, LLVM always overrides the default assembler options by emitting the '.set noreorder', '.set nomacro' and '.set noat' directives,
while GCC uses the default options if an assembly-level function contains inline assembly code.
This becomes a problem when the code generated by LLVM is interleaved with inline assembly which assumes GCC-like assembler options (from Linux, for example).
This patch fixes these conflicts by setting the appropriate assembler options at the beginning of an inline asm block and popping them at the end.
Reviewers: dsanders
Reviewed By: dsanders
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D6637
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llvm-svn: 232083
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r217432 | tomatabacu | 2014-09-09 11:15:38 +0100 (Tue, 09 Sep 2014) | 12 lines
[mips] Add assembler support for .set push/pop directive.
Summary:
These directives are used to save the current assembler options (in the case of ".set push") and restore the previously saved options (in the case of ".set pop").
Contains work done by Matheus Almeida.
Reviewers: dsanders
Reviewed By: dsanders
Differential Revision: http://reviews.llvm.org/D4821
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llvm-svn: 232082
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r217254 | tomatabacu | 2014-09-05 16:43:21 +0100 (Fri, 05 Sep 2014) | 9 lines
[mips] Rename data members and member functions in MipsAssemblerOptions.
Summary: Use the naming convention from the LLVM Coding Standards.
Reviewers: dsanders
Reviewed By: dsanders
Differential Revision: http://reviews.llvm.org/D4972
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llvm-svn: 232054
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r230235 | dsanders | 2015-02-23 17:22:16 +0000 (Mon, 23 Feb 2015) | 16 lines
[mips] Honour -mno-odd-spreg for vector insert/extract when MSA is enabled.
Summary:
-mno-odd-spreg prohibits the use of odd-numbered single-precision floating
point registers. However, vector insert/extract was still using them when
manipulating the subregisters of an MSA register. Fixed this by ensuring
that insertion/extraction is only performed on even-numbered vector
registers when -mno-odd-spreg is given.
Reviewers: vmedic, sstankovic
Reviewed By: sstankovic
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D7672
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llvm-svn: 231472
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r227089 | vkalintiris | 2015-01-26 12:33:22 +0000 (Mon, 26 Jan 2015) | 15 lines
[mips] Enable arithmetic and binary operations for the i128 data type.
Summary:
This patch adds support for some operations that were missing from
128-bit integer types (add/sub/mul/sdiv/udiv... etc.). With these
changes we can support the __int128_t and __uint128_t data types
from C/C++.
Depends on D7125
Reviewers: dsanders
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D7143
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llvm-svn: 231471
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Except for the MIPS-II and MIPS-III cases since these targets were not
supported in 3.5.1.
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r227087 | vkalintiris | 2015-01-26 12:04:40 +0000 (Mon, 26 Jan 2015) | 7 lines
[mips] Add tests for bitwise binary and integer arithmetic operators.
Reviewers: dsanders
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D7125
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llvm-svn: 231469
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Only the testcase minus the MIPS-II and MIPS-IV cases have been merged.
They are required to cleanly apply a subsequent patch.
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r221686 | vkalintiris | 2014-11-11 11:43:55 +0000 (Tue, 11 Nov 2014) | 16 lines
[mips] Add preliminary support for the MIPS II target.
Summary:
This patch enables code generation for the MIPS II target. Pre-Mips32
targets don't have the MUL instruction, so we add the correspondent
pattern that uses the MULT/MFLO combination in order to retrieve the
product.
This is WIP as we don't support code generation for select nodes due to
the lack of conditional-move instructions.
Reviewers: dsanders
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D6150
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llvm-svn: 231468
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r226171 | dsanders | 2015-01-15 15:41:03 +0000 (Thu, 15 Jan 2015) | 11 lines
[mips] Fix a typo in the compare patterns for MIPS32r6/MIPS64r6.
Summary: The patterns intended for the SETLE node were actually matching the SETLT node.
Reviewers: atanasyan, sstankovic, vmedic
Reviewed By: vmedic
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D6997
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llvm-svn: 231467
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r225529 | dsanders | 2015-01-09 17:21:30 +0000 (Fri, 09 Jan 2015) | 18 lines
[mips] Add support for accessing $gp as a named register.
Summary:
Mips Linux uses $gp to hold a pointer to thread info structure and accesses it
with a named register. This makes this work for LLVM.
The N32 ABI doesn't quite work yet since the frontend generates incorrect IR
for this case. It neglects to truncate the 64-bit GPR to a 32-bit value before
converting to a pointer. Given correct IR (as in the testcase in this patch),
it works correctly.
Reviewers: sstankovic, vmedic, atanasyan
Reviewed By: atanasyan
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D6893
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llvm-svn: 231466
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The build fails after merging them due to two missing functions.
llvm-svn: 231464
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r225521 | tomatabacu | 2015-01-09 15:00:30 +0000 (Fri, 09 Jan 2015) | 1 line
[mips] Add comment which explains why we need to change the assembler options before and after inline asm blocks. NFC.
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llvm-svn: 231463
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r224425 | tomatabacu | 2014-12-17 10:56:16 +0000 (Wed, 17 Dec 2014) | 17 lines
[mips] Set GCC-compatible MIPS asssembler options before inline asm blocks.
Summary:
When generating MIPS assembly, LLVM always overrides the default assembler options by emitting the '.set noreorder', '.set nomacro' and '.set noat' directives,
while GCC uses the default options if an assembly-level function contains inline assembly code.
This becomes a problem when the code generated by LLVM is interleaved with inline assembly which assumes GCC-like assembler options (from Linux, for example).
This patch fixes these conflicts by setting the appropriate assembler options at the beginning of an inline asm block and popping them at the end.
Reviewers: dsanders
Reviewed By: dsanders
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D6637
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llvm-svn: 231462
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llvm-svn: 225916
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r222856 | majnemer | 2014-11-26 15:00:38 -0800 (Wed, 26 Nov 2014) | 8 lines
Revert "Added inst combine transforms for single bit tests from Chris's note"
This reverts commit r210006, it miscompiled libapr which is used in who
knows how many projects.
A test has been added to ensure that we don't regress again.
I'll work on a rewrite of what the optimization was trying to do later.
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llvm-svn: 225255
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This branch will probably not be mantained. Its purpose is to mark
the last commit that is compatible with LLVM 3.5.
llvm-svn: 225040
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llvm-svn: 225039
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to automatically infer the SDK location.
llvm-svn: 225038
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encodings. This provides testing for r225036. 64-bit mode is still broken.
llvm-svn: 225037
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modes with all 4 combinations of OpSize and AdSize prefixes being present or not.
llvm-svn: 225036
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llvm-svn: 225035
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We are allowed to move the 'B' to the right hand side if we an prove
there is no signed overflow and if the comparison itself is signed.
llvm-svn: 225034
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Summary: If a receive case in a select statement is not assigned to a named variable, then we can eliminate the alloca and copy at runtime.
Test Plan: lit test added
Reviewers: pcc
Reviewed By: pcc
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D6785
llvm-svn: 225033
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This reverts commit r224611. This change causes crashes
in X86 DAG->DAG Instruction Selection.
llvm-svn: 225031
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The new ABI is simpler for use cases such as dynamically loaded packages.
The calling convention for import functions is similar to what go/ssa would
produce if BareInits were cleared. However, simply clearing this flag causes
two additional issues:
1) We would need to special case the 'init$guard' variable (see
discussion in https://codereview.appspot.com/78780043/).
2) The call to __go_register_gc_roots needs to appear in the right
place, i.e. after the guard check. Making this check appear
in the right place with non-bare inits seems unreliable at best.
So we keep BareInits set and generate the necessary code manually.
It is still possible to get the old ABI by specifying a path to a gccgo
installation.
Differential Revision: http://reviews.llvm.org/D6804
llvm-svn: 225030
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Differential Revision: http://reviews.llvm.org/D6803
llvm-svn: 225029
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Differential Revision: http://reviews.llvm.org/D6802
llvm-svn: 225028
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This is useful for clients that need to use llgo's mangling of the package
path to look up a specific function within a given package.
Differential Revision: http://reviews.llvm.org/D6801
llvm-svn: 225027
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This change allows clients to generate IR using "files" received from locations
other than the file system. The regular file parser is moved to a new library,
"driver", which is intended to eventually contain much of the logic from
the existing driver.
Differential Revision: http://reviews.llvm.org/D6794
llvm-svn: 225026
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doubleword bitfield extract, word parity, accumulating multiplies with saturation.
llvm-svn: 225024
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This patch updates the list of supported platforms to include
Windows, and also provides some detailed getting started instructions
for building LLDB on Windows.
Differential Revision: http://reviews.llvm.org/D6805
llvm-svn: 225023
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llvm-svn: 225022
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llvm-svn: 225021
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Too many different comment characters - instead of trying to account for
them all, instead disable the comments and just check for end-of-line
instead.
llvm-svn: 225020
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llvm-svn: 225019
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llvm-svn: 225018
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llvm-svn: 225017
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fork()
llvm-svn: 225016
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llvm-svn: 225015
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This fixes the DSO build for now. Eventually we should develop some
other mechanism to make this work correctly with DSOs.
llvm-svn: 225014
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Unify the component handling for compiler-rt. The components are regularly
named, built up from:
${LIBRARY_PREFIX}clang_rt.${component}-${arch}[-${environment}]${LIBRARY_SUFFIX}
Unify the handling for all the various components, into a single path to link
against the various components in a number of places. This reduces duplication
of the clang_rt library name construction logic.
llvm-svn: 225013
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Fixup some whitespace/style issues. NFC.
llvm-svn: 225012
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GCC does this for non-zero discriminators and since GCC doesn't produce
column info, that was the only place it comes up there. For LLVM, since
we can emit discriminators and/or column info, it makes more sense to
invert the condition and just test for changes in line number.
This should resolve at least some of the GDB 7.5 test suite failures
created by recent Clang changes that increase the location fidelity
(which, since Clang defaults to including column info on Linux by
default created a bunch of cases that confused GDB).
In theory we could do this better/differently by grouping actual source
statements together in a similar manner to the way lexical scopes are
handled but given that GDB isn't really in a position to consume that (&
users are probably somewhat used to different lines being different
'statements') this seems the safest and cheapest change. (I'm concerned
that doing this 'right' would bloat the debugloc data even further -
something Duncan's working hard to address)
llvm-svn: 225011
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llvm-svn: 225010
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immediate newvalue stores.
llvm-svn: 225009
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