http://llvm.org/bugs/show_bug.cgi?id=22518
Bug ID: 22518
Summary: .cpsetup syntax handler doesn't deal with absolute
offsets
Product: new-bugs
Version: 3.6
Hardware: Other
OS: FreeBSD
Status: NEW
Severity: normal
Priority: P
Component: new bugs
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Classification: Unclassified
FreeBSD has several cases in its MIPS tree where .cpsetup is used with an
absolute offset instead of a label.
The most obvious use is in the gcc config for mips:
gcc/config/mips/mips.h
#if (defined _ABIN32 && _MIPS_SIM == _ABIN32) \
|| (defined _ABI64 && _MIPS_SIM == _ABI64)
#define CRT_CALL_STATIC_FUNCTION(SECTION_OP, FUNC) \
asm (SECTION_OP "\n\
.set noreorder\n\
bal 1f\n\
nop\n\
1: .set reorder\n\
.cpsetup $31, $2, 1b\n\
jal " USER_LABEL_PREFIX #FUNC "\n\
" TEXT_SECTION_ASM_OP);
#endif
I'm also tracking this in a freebsd bug at:
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=197259
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