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| author | Bjorn Pettersson <bjorn.a.pettersson@ericsson.com> | 2019-11-28 23:18:28 +0100 |
|---|---|---|
| committer | Bjorn Pettersson <bjorn.a.pettersson@ericsson.com> | 2019-12-02 11:05:25 +0100 |
| commit | a9d6b0e5444741d08ff1df7cf71d1559e7fefc1f (patch) | |
| tree | 36f6d6da60c37f0f812bd84c4a450f4034d9dfbc /lldb/packages/Python/lldbsuite/test/python_api/debugger/TestDebuggerAPI.py | |
| parent | 7eecf2b872e506927f59b6a1f4a8546d8baaa700 (diff) | |
| download | bcm5719-llvm-a9d6b0e5444741d08ff1df7cf71d1559e7fefc1f.tar.gz bcm5719-llvm-a9d6b0e5444741d08ff1df7cf71d1559e7fefc1f.zip | |
[InstCombine] Fix big-endian miscompile of (bitcast (zext/trunc (bitcast)))
Summary:
optimizeVectorResize is rewriting patterns like:
%1 = bitcast vector %src to integer
%2 = trunc/zext %1
%dst = bitcast %2 to vector
Since bitcasting between integer an vector types gives
different integer values depending on endianness, we need
to take endianness into account. As it happens the old
implementation only produced the correct result for little
endian targets.
Fixes: https://bugs.llvm.org/show_bug.cgi?id=44178
Reviewers: spatel, lattner, lebedev.ri
Reviewed By: spatel, lebedev.ri
Subscribers: lebedev.ri, hiraditya, uabelho, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D70844
Diffstat (limited to 'lldb/packages/Python/lldbsuite/test/python_api/debugger/TestDebuggerAPI.py')
0 files changed, 0 insertions, 0 deletions
