http://llvm.org/bugs/show_bug.cgi?id=6930
Roberto Bagnara <[email protected]> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|RESOLVED |REOPENED CC| |[email protected] Resolution|FIXED | --- Comment #6 from Roberto Bagnara <[email protected]> 2010-08-06 04:59:54 CDT --- Here is a testcase coming from Linux 2.6.35: $ cat /tmp/bug2.c struct task_struct; extern __typeof__(struct task_struct *) current_task; struct task_struct *get_current(void) { struct task_struct *pfo_ret__ = 0; switch (sizeof(current_task)) { case 1: asm("mov" "b ""%%""gs"":%P" "1"",%0" : "=q" (pfo_ret__) : "p" (&(current_task))); break; case 2: asm("mov" "w ""%%""gs"":%P" "1"",%0" : "=r" (pfo_ret__) : "p" (&(current_task))); break; case 4: asm("mov" "l ""%%""gs"":%P" "1"",%0" : "=r" (pfo_ret__) : "p" (&(current_task))); break; case 8: asm("mov" "q ""%%""gs"":%P" "1"",%0" : "=r" (pfo_ret__) : "p" (&(current_task))); break; default: break; } return pfo_ret__; } $ ~/llvm.debug/Debug+Asserts/bin/clang /tmp/bug2.c /tmp/bug2.c:11:63: error: invalid input constraint 'p' in asm asm("mov" "b ""%%""gs"":%P" "1"",%0" : "=q" (pfo_ret__) : "p" ... ^ /tmp/bug2.c:14:63: error: invalid input constraint 'p' in asm asm("mov" "w ""%%""gs"":%P" "1"",%0" : "=r" (pfo_ret__) : "p" ... ^ /tmp/bug2.c:17:63: error: invalid input constraint 'p' in asm asm("mov" "l ""%%""gs"":%P" "1"",%0" : "=r" (pfo_ret__) : "p" ... ^ /tmp/bug2.c:20:63: error: invalid input constraint 'p' in asm asm("mov" "q ""%%""gs"":%P" "1"",%0" : "=r" (pfo_ret__) : "p" ... ^ 4 errors generated. $ ~/llvm.debug/Debug+Asserts/bin/clang --version clang version 2.8 (trunk 110191) Target: x86_64-unknown-linux-gnu Thread model: posix -- Configure bugmail: http://llvm.org/bugs/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug. _______________________________________________ LLVMbugs mailing list [email protected] http://lists.cs.uiuc.edu/mailman/listinfo/llvmbugs
