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| author | Richard Sandiford <richard.sandiford@arm.com> | 2020-06-22 20:15:36 +0100 |
|---|---|---|
| committer | Richard Sandiford <richard.sandiford@arm.com> | 2020-06-22 20:15:36 +0100 |
| commit | 20a2e6afa82c165bcd1a8749478e9402a25088a4 (patch) | |
| tree | c62a0c81382dfc4f59d1cfe3f00c0a0cec06a0e5 /gcc | |
| parent | 99abb146fd0923ebda2c7e7681adb18e6798a90c (diff) | |
| download | gcc-20a2e6afa82c165bcd1a8749478e9402a25088a4.zip gcc-20a2e6afa82c165bcd1a8749478e9402a25088a4.tar.gz gcc-20a2e6afa82c165bcd1a8749478e9402a25088a4.tar.bz2 | |
recog: Restore builds with Clang
Using parameter packs with function typedefs tripped a Clang bug
in which the packs were not being expanded correctly:
https://bugs.llvm.org/show_bug.cgi?id=46377
Work around that by going back to the decltype approach, but adding
a cast to void to suppress a warning about unused values.
2020-06-22 Richard Sandiford <richard.sandiford@arm.com>
gcc/
* coretypes.h (first_type): Delete.
* recog.h (insn_gen_fn::operator()): Go back to using a decltype.
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/coretypes.h | 4 | ||||
| -rw-r--r-- | gcc/recog.h | 2 |
2 files changed, 1 insertions, 5 deletions
diff --git a/gcc/coretypes.h b/gcc/coretypes.h index 720f9f9..6b6cfcd 100644 --- a/gcc/coretypes.h +++ b/gcc/coretypes.h @@ -359,10 +359,6 @@ struct kv_pair const ValueType value; /* the value of the name */ }; -/* Alias of the first type, ignoring the second. */ -template<typename T1, typename T2> -using first_type = T1; - /* Iterator pair used for a collection iteration with range-based loops. */ template<typename T> diff --git a/gcc/recog.h b/gcc/recog.h index d674d38..3e4b55b 100644 --- a/gcc/recog.h +++ b/gcc/recog.h @@ -297,7 +297,7 @@ struct insn_gen_fn template<typename ...Ts> rtx_insn *operator() (Ts... args) const { - typedef rtx_insn *(*funcptr) (first_type<rtx, Ts>...); + typedef rtx_insn *(*funcptr) (decltype ((void) args, NULL_RTX)...); return ((funcptr) func) (args...); } |