Ilias Tsitsimpis [Wed, 18 Oct 2023 19:50:19 +0000 (22:50 +0300)]
Add more hadrian bootstrap plans
Hadrian only contains bootstrap plans for previous GHC versions. Add plans for
the current version as well, since we may want to bootstrap hadrian with a
cross-compiled GHC that is of the same version as the GHC we are building here.
Bump supported LLVM range from 10 through 15 to 11 through 16
LLVM 15 turns on the new pass manager by default, which we have yet to
migrate to so for new we pass the `-enable-new-pm-0` flag in our
llvm-passes flag.
LLVM 11 was the first version to support the `-enable-new-pm` flag so we
bump the lowest supported version to 11.
Our CI jobs are using LLVM 12 so they should continue to work despite
this bump to the lower bound.
GHC 8.10 fails to build on armel with the following error:
LLVM ERROR: unable to allocate function argument #8
PLEASE submit a bug report to https://bugs.llvm.org/ and include the crash backtrace.
Stack dump:
0. Program arguments: llc-12 -O2 -enable-tbaa -relocation-model=pic -mcpu=arm7tdmi -mattr=+soft-float,-vfp2,-vfp2sp,-vfp3,-vfp3d16,-vfp3d16sp,-vfp3sp,-fp16,-vfp4,-vfp4d16,-vfp4d16sp,-vfp4sp,-fp-armv8,-fp-armv8d16,-fp-armv8d16sp,-fp-armv8sp,-fullfp16,-fp64,-d32,-neon,-crypto,-dotprod,-fp16fml,-bf16,-mve,-mve.fp,-fpregs,+strict-align /tmp/ghc5537_0/ghc_6.bc -o /tmp/ghc5537_0/ghc_7.lm_s
1. Running pass 'Function Pass Manager' on module '/tmp/ghc20177_0/ghc_6.bc'.
2. Running pass 'ARM Instruction Selection' on function '@"stg_gc_f1$def"'
`llc-12' failed in phase `LLVM Compiler'. (Exit code: -6)
make[3]: *** [rts/ghc.mk:325: rts/dist/build/HeapStackCheck.o] Error 1
This patch enables a few native 64-bit integer instructions
on x32 which are available on this architecture despite using
32-bit pointers. These instructions are present on x86_64 but
not on x86 and ghc checks the size of (void *) to determine
that. This method fails on x32 since despite using 32-bit
pointers and hence sizeof(void *) == 4, it still uses the
full x86_64 instruction set and software-emulated variants
of the aforementioned 64-bit integer instructions are
therefore not present in the toolchain which will make ghc
fail to build on x32.
See: https://ghc.haskell.org/trac/ghc/ticket/11571
Jani writes: The D16 part was Debian/Ubuntu specific, IIRC we define hardfloat
in that particular variant (16 double registers) or we had a different naming
for some reason.
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