http://llvm.org/bugs/show_bug.cgi?id=20528
Bug ID: 20528
Summary: [mips] Tracking ticket for big-endian N32/N64 ABI
issues
Product: new-bugs
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: new bugs
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Classification: Unclassified
There appears to be a number of issues in the N32/N64 ABI's on big-endian
targets. The ones identified so far include:
* Stack arguments smaller than 64-bit are put in the wrong 32-bit word
* Likewise for va_arg
* Floating point stack arguments are correctly stored at the lowest part of the
address but their handling is tangled with integers so fixing the previous bugs
breaks this.
* i8, i16, i32 arguments are not promoted to i64 as per some documentation and
GCC.
* Structures are not stored in the lowest possible address
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