Custom Instructions: Single-precision -mcustom-* compiler options

Thank you for your post.

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However are you sure you are actually performing a single precision floating point comparison?

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Yes, I am or at least I think so. Here is my code for testing it. Should be single precision.

float TEST_Float (float a, float b)
{
   if (a<b)
      a=b;
   return a;
}

With following compiler (user) flags:

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-mcustom-floatis=1 -mcustom-fixsi=2 -mcustom-fcmplts=25 -mcustom-fcmpgts=26

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Becomes

020241b4 <TEST_Float>:
 20241b4:    defffd04     addi    sp,sp,-12
 20241b8:    dc400115     stw    r17,4(sp)
 20241bc:    dc000015     stw    r16,0(sp)
 20241c0:    dfc00215     stw    ra,8(sp)
 20241c4:    2021883a     mov    r16,r4
 20241c8:    2823883a     mov    r17,r5
 20241cc:    202797c0     call    202797c <__ltsf2>
 20241d0:    1000010e     bge    r2,zero,20241d8 <TEST_Float+0x24>
 20241d4:    8821883a     mov    r16,r17
 20241d8:    8005883a     mov    r2,r16
 20241dc:    dfc00217     ldw    ra,8(sp)
 20241e0:    dc400117     ldw    r17,4(sp)
 20241e4:    dc000017     ldw    r16,0(sp)
 20241e8:    dec00304     addi    sp,sp,12
 20241ec:    f800283a     ret

We tried it with gcc3 and gcc4. It's not working for both.

Have you done it successfully?