https://llvm.org/bugs/show_bug.cgi?id=27369
Bug ID: 27369
Summary: assembler doesn't understand rept with labels as
values
Product: clang
Version: 3.8
Hardware: PC
OS: All
Status: NEW
Severity: normal
Priority: P
Component: -New Bugs
Assignee: unassignedclangb...@nondot.org
Reporter: roy...@freebsd.org
CC: llvm-bugs@lists.llvm.org
Classification: Unclassified
Hello,
While trying to compile the Xen kernel using clang and the integrated
assembler, I've found that the following assembly snippet doesn't work under
clang integrated as, but it works with gas:
# cat test.S
main:
.rept 128-(.-main)
.long 0
.endr
# clang test.S -c
test.S:2:8: error: unexpected token in '.rept' directive
.rept 128-(.-main)
^
test.S:4:7: error: unmatched '.endr' directive
.endr
^
This is of course a simplification, the original code can be found at:
http://xenbits.xen.org/gitweb/?p=xen.git;a=blob;f=xen/arch/x86/x86_64/compat/entry.S
Is there anyway to workaround this? (apart from using -no-integrated-as)
Thanks, Roger.
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