https://llvm.org/bugs/show_bug.cgi?id=31005
Bug ID: 31005
Summary: inline asm global registers compatibility to gcc+icc
Product: new-bugs
Version: unspecified
Hardware: PC
OS: Windows NT
Status: NEW
Severity: normal
Priority: P
Component: new bugs
Assignee: unassignedb...@nondot.org
Reporter: ziv.iz...@intel.com
CC: llvm-bugs@lists.llvm.org
Classification: Unclassified
in clang, the following lines produce an error:
register int foo asm("al");
int main() {
}
error: register 'al' unsuitable for global register variables on this target
while in gcc + icc these lines compile with a new meanning: instead of al (or
ax,eax,rax), it acts like it's all the eax register.
in clang however we get the error specified before.
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