fpc-2.6.0 package broken because of vfp-instructions #63
Description
While trying to build the current fpc trunk I get the following error when I use the provided FPC as a bootstrap compiler:
/usr/bin/ppcarm -Ur -Ur -Xs -O2 -n -Fi../inc -Fi../arm -Fi../unix -Fiarm -FE. -FU/home/pi/projects/freepascal/rtl/units/arm-linux -dFPC_ARMEL -Fd -O3 -dFPC_ABI_EABI -CpARMV5 -gl -a -al -an -ar -at -darm -dRELEASE -Us -Sg system.pp
Fatal: Compilation aborted
An unhandled exception occurred at $0011AC8C :
EInvalidOp : Invalid floating point operation
$0011AC8C FACTOR, line 2573 of pexpr.pas
$0011E1B4 SUB_EXPR, line 2855 of pexpr.pas
$0011E1D4 SUB_EXPR, line 2857 of pexpr.pas
$0011E1D4 SUB_EXPR, line 2857 of pexpr.pas
$0011E1D4 SUB_EXPR, line 2857 of pexpr.pas
$0011E760 COMP_EXPR, line 2946 of pexpr.pas
$0010B638 CONSTS_DEC, line 196 of pdecl.pas
$0010B588 CONST_DEC, line 167 of pdecl.pas
$0010520C READ_PROC, line 1752 of psub.pas
$00105754 READ_DECLARATIONS, line 1876 of psub.pas
$00139D4C COMPILE, line 396 of parser.pas
$0001E050 COMPILE, line 252 of compiler.pas
The assembly in question is:
11ac84: 1a00000d bne 11acc0 <PEXPR_FACTOR$BOOLEAN$BOOLEAN$$TNODE+0xd74>
11ac88: eeb70bc8 vcvt.f32.f64 s0, d8
11ac8c: eeb70ac0 vcvt.f64.f32 d0, s0 <<<<<---------- Error
11ac90: eeb48b40 vcmp.f64 d8, d0
11ac94: eef1fa10 vmrs APSR_nzcv, fpscr
From the documentation I've read so far there should be no reason for this to fail. At least arm says that this instruction is supported in vfp2.