[LLVMbugs] [Bug 11657] New: error in backend: Invalid operand for inline asm constraint 'i'! error in backend: Invalid operand for inline asm constraint 'i'!

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=11657

             Bug #: 11657
           Summary: error in backend: Invalid operand for inline asm
                    constraint 'i'! error in backend: Invalid operand for
                    inline asm constraint 'i'!
           Product: clang
           Version: trunk
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: -New Bugs
        AssignedTo: unassignedclangbugs at nondot.org
        ReportedBy: ismail at namtrac.org
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified


Created attachment 7807
  --> http://llvm.org/bugs/attachment.cgi?id=7807
Reduced testcase

Sample testcase;

> cat testcase.i 
typedef int int32_t;
typedef long int intptr_t;
struct sbc_encoder_state {
 void (*sbc_calc_scalefactors)(int32_t sb_sample_f[16][2][8],
   int blocks, int channels, int subbands);
};
static void sbc_calc_scalefactors_mmx(
 int32_t sb_sample_f[16][2][8],
 int blocks, int channels, int subbands)
{
 int ch, sb;
 intptr_t blk;
 for (ch = 0; ch < channels; ch++) {
  for (sb = 0; sb < subbands; sb += 2) {
   __asm__ volatile (
    "movq         (%4), %%mm0\n"
   : "+r" (blk)
   : "r" (&sb_sample_f[0][ch][sb]),
    "i" ((char *) &sb_sample_f[1][0][0] -
     (char *) &sb_sample_f[0][0][0]),
    "i" (15)
   : "cc", "memory");
  }
 }
}
void sbc_init_primitives_mmx(struct sbc_encoder_state *state)
{
  state->sbc_calc_scalefactors = sbc_calc_scalefactors_mmx;
}


> clang -c testcase.i
fatal error: error in backend: Invalid operand for inline asm constraint 'i'!

> clang -v
clang version 3.1 (trunk 147142)
Target: x86_64-unknown-linux-gnu
Thread model: posix

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