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| author | Andreas Schwab <schwab@suse.de> | 2015-10-02 23:03:12 +0200 |
|---|---|---|
| committer | Ben Gamari <ben@smart-cactus.org> | 2015-10-02 23:04:14 +0200 |
| commit | e3d2bab86fc89113f8ee65800fdfac81d8d54851 (patch) | |
| tree | 7af1543d5472eb235d8f30c474744f2bc1af6163 /docs/users_guide/codegens.rst | |
| parent | 74424346415f4e3a4d888236b3eb993f8aef4c6b (diff) | |
| download | haskell-e3d2bab86fc89113f8ee65800fdfac81d8d54851.tar.gz | |
Fix signature of atomic builtins
This patch is due to Andreas Schwab.
This fixes #10926, which reports (on AArch64) errors of the form,
```
/tmp/ghc1492_0/ghc_1.hc:2844:25: warning: passing argument 1 of
'hs_atomic_xor64' makes pointer from integer without a cast
[-Wint-conversion]
_c1Ho = hs_atomic_xor64((*Sp) + (((Sp[1]) << 0x3UL) + 0x10UL), Sp[2]);
^
In file included from
/home/abuild/rpmbuild/BUILD/ghc-7.10.2/includes/Stg.h:273:0: 0,
from /tmp/ghc1492_0/ghc_1.hc:3:
/home/abuild/rpmbuild/BUILD/ghc-7.10.2/includes/stg/Prim.h:41:11:
note: expected 'volatile StgWord64 *
{aka volatile long unsigned int *}'
but argument is of type 'long unsigned int'
StgWord64 hs_atomic_xor64(volatile StgWord64 *x, StgWord64 val);
^
```
Test Plan: Validate
Reviewers: austin, simonmar
Reviewed By: simonmar
Subscribers: thomie
Differential Revision: https://phabricator.haskell.org/D1300
GHC Trac Issues: #10926
Diffstat (limited to 'docs/users_guide/codegens.rst')
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