http://llvm.org/bugs/show_bug.cgi?id=18315
Bug ID: 18315
Summary: failure to parse %b0
Product: libraries
Version: 3.3
Hardware: PC
OS: Windows NT
Status: NEW
Severity: normal
Priority: P
Component: LLVM assembly language parser
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Classification: Unclassified
When compiling the following code snippet:
#define DOINT(n) "int $0x20+(" #n ")"
__asm __volatile(DOINT(0x1a) "\n\t"
"setc %b0\n\t"
"movb %%ch, 0(%2)\n\t"
"movb %%cl, 1(%2)\n\t"
"movb %%dh, 2(%2)\n\t"
"movb %%dl, 3(%2)\n\t"
: "=a" (f)
: "0" (f), "p" (b) : "%ecx", "%edx", "cc");
clang reports
error:
unexpected token in memory operand
"setc %b0\n\t"
^
<inline asm>:3:14: note: instantiated into assembly here
movb %ch, 0(-8(%ebp))
^
/usr/src/sys/arch/i386/stand/boot/../libsa/time.c:81:25: error:
unexpected token in memory operand
"movb %%ch, 0(%2)\n\t"
^
<inline asm>:4:14: note: instantiated into assembly here
movb %cl, 1(-8(%ebp))
^
/usr/src/sys/arch/i386/stand/boot/../libsa/time.c:82:25: error:
unexpected token in memory operand
"movb %%cl, 1(%2)\n\t"
^
<inline asm>:5:14: note: instantiated into assembly here
movb %dh, 2(-8(%ebp))
^
/usr/src/sys/arch/i386/stand/boot/../libsa/time.c:83:25: error:
unexpected token in memory operand
"movb %%dh, 2(%2)\n\t"
^
<inline asm>:6:14: note: instantiated into assembly here
movb %dl, 3(-8(%ebp))
^
4 errors generated.
While, -no-integrated-as, it produces:
/tmp/time-cEtCow.s: Assembler messages:
/tmp/time-cEtCow.s:172: Error: junk `(-8(%ebp))' after expression
/tmp/time-cEtCow.s:173: Error: junk `(-8(%ebp))' after expression
/tmp/time-cEtCow.s:174: Error: junk `(-8(%ebp))' after expression
/tmp/time-cEtCow.s:175: Error: junk `(-8(%ebp))' after expression
clang-3.3: error: assembler command failed with exit code 1 (use -v to
see invocation)
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