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| author | 2020-08-03 15:06:44 +0000 | |
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| committer | 2020-08-03 15:06:44 +0000 | |
| commit | b64793999546ed8adebaeebd9d8345d18db8927d (patch) | |
| tree | 4357c27b561d73b0e089727c6ed659f2ceff5f47 /gnu/llvm/docs/CommandGuide/llvm-diff.rst | |
| parent | Add support for UTF-8 DISPLAY-HINTs with octet length. For now only (diff) | |
| download | wireguard-openbsd-b64793999546ed8adebaeebd9d8345d18db8927d.tar.xz wireguard-openbsd-b64793999546ed8adebaeebd9d8345d18db8927d.zip | |
Remove LLVM 8.0.1 files.
Diffstat (limited to 'gnu/llvm/docs/CommandGuide/llvm-diff.rst')
| -rw-r--r-- | gnu/llvm/docs/CommandGuide/llvm-diff.rst | 56 |
1 files changed, 0 insertions, 56 deletions
diff --git a/gnu/llvm/docs/CommandGuide/llvm-diff.rst b/gnu/llvm/docs/CommandGuide/llvm-diff.rst deleted file mode 100644 index 991d4fece04..00000000000 --- a/gnu/llvm/docs/CommandGuide/llvm-diff.rst +++ /dev/null @@ -1,56 +0,0 @@ -llvm-diff - LLVM structural 'diff' -================================== - - -SYNOPSIS --------- - - -**llvm-diff** [*options*] *module 1* *module 2* [*global name ...*] - - -DESCRIPTION ------------ - - -**llvm-diff** 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. - -An input module will be interpreted as an assembly file if its name -ends in '.ll'; otherwise it will be read in as a bitcode file. - -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. - -**llvm-diff** 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. - -**llvm-diff** is intended as a debugging tool for writers of LLVM -passes and frontends. It does not have a stable output format. - - -EXIT STATUS ------------ - - -If **llvm-diff** finds no differences between the modules, it will exit -with 0 and produce no output. Otherwise it will exit with a non-zero -value. - - -BUGS ----- - - -Many important differences, like changes in linkage or function -attributes, are not diagnosed. - -Changes in memory behavior (for example, coalescing loads) can cause -massive detected differences in blocks. |
