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| author | Mikael Pettersson <[email protected]> | 2015-05-06 15:44:54 +0200 |
|---|---|---|
| committer | Sverker Eriksson <[email protected]> | 2015-05-06 15:44:54 +0200 |
| commit | b5ab6ded99afb0978dd4722d0d43b755555ac549 (patch) | |
| tree | a5071653c0fb31d8ef1f73eaae7f01ce962a6998 | |
| parent | 6f05fa95ad949298f5175fc3a25fea52a7a3788d (diff) | |
| download | otp-b5ab6ded99afb0978dd4722d0d43b755555ac549.tar.gz otp-b5ab6ded99afb0978dd4722d0d43b755555ac549.tar.bz2 otp-b5ab6ded99afb0978dd4722d0d43b755555ac549.zip | |
erts: Disable float exceptions for clang/llvm
Change erts/configure.in to force-disable FP exceptions if
the VM is compiled by clang/llvm. clang/llvm generates FP
code which does not work with FP exceptions (whether unmasked
as used in the Erlang VM, or masked followed by tests of
which are signalled). This is a known long-standing problem.
| -rw-r--r-- | erts/configure.in | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/erts/configure.in b/erts/configure.in index 873e1e30fe..795ce0639b 100644 --- a/erts/configure.in +++ b/erts/configure.in @@ -2916,6 +2916,10 @@ else #include <signal.h> #include <stdlib.h> +#if defined(__clang__) || defined(__llvm__) +#error "Clang/LLVM generates broken code for FP exceptions" +#endif + volatile int erl_fp_exception; /* |