[cfe-dev] Incorrect assumptions in MIPS backend
Matthew Fernandez via cfe-dev
cfe-dev at lists.llvm.org
Thu Sep 17 02:41:45 PDT 2015
Running the following on an x86_64 Linux box triggers an assertion failure:
llc -march=mipsel -mcpu=help </dev/null
The assertion in question is the following:
// Check if Architecture and ABI are compatible.
assert(((!isGP64bit() && (isABI_O32() || isABI_EABI())) ||
(isGP64bit() && (isABI_N32() || isABI_N64()))) &&
"Invalid Arch & ABI pair.");
It's possible my LLVM is not correctly configured to target MIPS, but it still seems like this should not trigger an
assertion failure. Is the MIPS backend assuming something it shouldn't here?
This is on a somewhat older revision, r218935. I tried to reproduce this on the current tip, but had some difficulty
building it (missing __cxa_* symbols during link; missing a dependency?). Apologies if this issue is not reproducible on
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