Sign- and zero-extension folding was slightly incorrect because it wasn't checking that the shift on extensions was zero. Further, I recently added AND rd, rn, #255 as a form of 8-bit zero extension, and failed to add the folding code for it.

This patch fixes both issues.

This patch fixes both, and the test should remain the same:
  test/CodeGen/ARM/fast-isel-fold.ll

llvm-svn: 183794

Providing a Python helper SBData.CreateDataFromInt() to make an SBData out of a single integer number
It tries to use the current target, if any, for endianness and pointer size, and it picks a reasonable size on your behalf - if there is no way it can infer anything reasonable it essentially picks a 64-bit Mac as the reference model

llvm-svn: 183793

Use llvm::APFloat for formatting if a target is available. Each target when debugging has a "ASTContext" that helps us to use the correct floating point semantics. Now that APFloat supports toString we now use that. If we don't have a target, we still fall back on the old display methodology, but the important formatting should always have a target available and thus use the compiler floating point code.

Modified the test programs to use floating point constants that always will display correctly. We had some numbers that were being rounded, and now that we are using clang, we no longer round them and we get more correct results.

llvm-svn: 183792

with a string.  This case is sort of tricky because we can't modify the
StringLiteral used to represent such initializers.
We are forced to decompose the string into individual characters.

Fixes <rdar://problem/10465114>.

llvm-svn: 183791

For ARM on linux we use /proc/cpuinfo to detect the host CPU's features.
Linux derives these values without ever looking at the vendor of the
specific CPU implementation. Hence, it adds little value, if we parse
the output of /proc/cpuinfo only for certain vendors.

This patch enables us to derive the correct feature flags e.g. for Qualcomm
CPUs.

llvm-svn: 183790

Change for http://llvm-reviews.chandlerc.com/D952

Reviewers: Bigcheese

CC: llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D953

llvm-svn: 183789

COFF header is always present both in executable and in object file. PE header
is present only in executable. So the natural way to handle PE/COFF file is
treating COFF is mandatory header and PE is optional. Current data structre
does not allow it, because PE header includes COFF header. Removing COFF
header will simplify the code to handle PE/COFF files.

Reviewers: Bigcheese

CC: llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D952

llvm-svn: 183788

llvm-svn: 183787

llvm-svn: 183786

llvm-svn: 183785

llvm-svn: 183784

llvm-svn: 183783

This is preparation for replacing Path.h with PathV2.h.

llvm-svn: 183782

This is preparation for replacing Path.h with PathV2.h.

llvm-svn: 183781

llvm-svn: 183780

llvm-svn: 183779

llvm-svn: 183778

llvm-svn: 183777

Testcase to follow.

llvm-svn: 183776

llvm-svn: 183775

llvm-svn: 183774

llvm-svn: 183773

Allowing LLDB to resolve names of Python functions when they are located in classes
This allows things like *bound* classmethods to be used for formatters, commands, ...

llvm-svn: 183772

llvm-svn: 183771

llvm-svn: 183770

llvm-svn: 183769

Summary:
Some compilers where failing with this file because the number of symbols was above 2**15.
- Replace std::list<> and std::vector<> with plain arrays.
- Change VariadicMatcherCreateCallback to be a function template, and a
  single class that wraps the instantiations.
- Remove some more unnecessary template arguments and function calls.

Reviewers: klimek

CC: cfe-commits, revane

Differential Revision: http://llvm-reviews.chandlerc.com/D948

llvm-svn: 183768

No functionality changes.

llvm-svn: 183767

Allow memory read -t to take persistent types (those defined with expression struct $....)

llvm-svn: 183766

llvm-svn: 183765

llvm-svn: 183764

llvm-svn: 183763

No functionality change.

llvm-svn: 183762

llvm-svn: 183761

Patch by Mathieu Baudet!

llvm-svn: 183760

No functionality change.

llvm-svn: 183759

No functionality change.

llvm-svn: 183758

llvm-svn: 183757

Instead of a custom implementation of replaceAllUsesWith, we just call
replaceAllUsesWith and recreate llvm.used and llvm.compiler-used.

This change is particularity interesting because it makes llvm see
through what clang is doing with static used functions in extern "C"
contexts. With this change, running clang -O2 in

extern "C" {
  __attribute__((used)) static void foo() {}
}

produces

@llvm.used = appending global [1 x i8*] [i8* bitcast (void ()* @foo to
i8*)], section "llvm.metadata"
define internal void @foo() #0 {
entry:
  ret void
}

llvm-svn: 183756

Remove eFormatHalfFloat as it isn't needed. eFormatFloat should be used and the byte size will tell us how to display it.

llvm-svn: 183755