24326140 upgrade LLVM to 3.8.1
24326159 upgrade clang to 3.8.1
22902339 memory corruption caused by undefined behavior in LLVM IR Module
22777179 implement [ -mtune= -march= -mcpu= ] in clang SPARC
22778085 LLVM is using %icc when it should be using %xcc
22778089 the SPARCV9 IS implementation is incomplete
22778098 LLVM should emit proc identifiers in SPARC assembler (capabilities)
22778650 clang should support OpenMP because it can
22859423 llvm CodeGen on Intel emits a bogus .ctors section
22902355 clang CodeGen is affected by 22902339
23701635 clang produces amd64 opcodes, but calls 32-bit assembler by default
23593143 lli JIT bitcode parsing creates a main function with wrong argc/argv
21759660 clang packages should include the scan-view and scan-build utilities
23854357 clang should check for GNU ld
17867434 clang crashed in LEXER
24306550 clang crashes in llvm::Twine::toStringRef
24311726 clang's Perl and Python utilities should not use #!/usr/bin/env
24312028 llvm::Twine needs copy constructors and assignment operators
24312221 classes must be CopyConstructible, CopyAssignable, MoveConstructible ...
24314621 LLVM should build using the new CMake based build system
24314638 LLVM CommandLine subsystem is busted
24314687 static initialization of optimization passes doesn't work as intended
21870069 clang makes incorrect assumptions about anonymous namespace instantiation order
22643565 llvm's Google test harness needs some attention
24314745 clang should support PIE executables in Solaris
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.TH "LLVM-DIFF" "1" "2016-07-10" "3.8" "LLVM"
.SH NAME
llvm-diff \- LLVM structural 'diff'
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.SH SYNOPSIS
.sp
\fBllvm\-diff\fP [\fIoptions\fP] \fImodule 1\fP \fImodule 2\fP [\fIglobal name ...\fP]
.SH DESCRIPTION
.sp
\fBllvm\-diff\fP compares the structure of two LLVM modules, primarily
focusing on differences in function definitions. Insignificant
differences, such as changes in the ordering of globals or in the
names of local values, are ignored.
.sp
An input module will be interpreted as an assembly file if its name
ends in \(aq.ll\(aq; otherwise it will be read in as a bitcode file.
.sp
If a list of global names is given, just the values with those names
are compared; otherwise, all global values are compared, and
diagnostics are produced for globals which only appear in one module
or the other.
.sp
\fBllvm\-diff\fP compares two functions by comparing their basic blocks,
beginning with the entry blocks. If the terminators seem to match,
then the corresponding successors are compared; otherwise they are
ignored. This algorithm is very sensitive to changes in control flow,
which tend to stop any downstream changes from being detected.
.sp
\fBllvm\-diff\fP is intended as a debugging tool for writers of LLVM
passes and frontends. It does not have a stable output format.
.SH EXIT STATUS
.sp
If \fBllvm\-diff\fP finds no differences between the modules, it will exit
with 0 and produce no output. Otherwise it will exit with a non\-zero
value.
.SH BUGS
.sp
Many important differences, like changes in linkage or function
attributes, are not diagnosed.
.sp
Changes in memory behavior (for example, coalescing loads) can cause
massive detected differences in blocks.
.SH AUTHOR
Maintained by The LLVM Team (http://llvm.org/).
.SH COPYRIGHT
2003-2016, LLVM Project
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