[Openmcl-devel] CCL rebuild fails for current (and old) master on OSX 10.14

[Bruce O'Neel]

Hi,  
  
There are two different problems with the assembler.  
  
The first is the the messages of the form "4294967291 shortened to 251"  
  
The second is the  suffix or operands invalid for `movq'  
  
  
The first one is some stupid signed/unsigned problem with the expression parser which you can see with the following snippet.  
  
as -Q -g -arch x86_64 bus1.s  


  


bus1.s:39:4294967291 shortened to 251  


  


  
  
where bus1.s is below and all the movq statements should be the same.  
  
/* assemble with as -Q -g -arch x86_64 bus.s */  


  


/* fails with assembler included with Xcode 11 -- Xcode 11.1.2 at least */  


  


/* works on Xcode 10.3 or earler */  


  


        node_size = 8  


        dnode_size = 16  


        num_subtag_bits = 8  


        subtag_shift = num_subtag_bits  


        ntagbits = 4  


        fulltag_misc = 13  


        misc_bias = fulltag_misc  


        fulltag_nodeheader_0 = 5  


misc_header_offset = -fulltag_misc
misc_header_offset_neg = fulltag_misc  


misc_data_offset = misc_header_offset+node_size /* first word of data    */  


misc_subtag_offset = misc_header_offset       /* low byte of header   */  


  


  


          


          


        .text  


        .align 2  


        .p2align 3  


  


        .globl junk  


junk:  


        /* movq %rax,misc_data_offset(%rsi) */  


/* should all be the same */  


        movq %rax,-5(%rsi)   


        movq %rax,-13+8(%rsi)   


        movq %rax,-13+node_size(%rsi)   


        movq %rax,-fulltag_misc+node_size(%rsi)   


        movq %rax,misc_header_offset_neg+node_size(%rsi)   


        movq %rax,-misc_header_offset_neg+node_size(%rsi)   
/* fails */  


        movq %rax,misc_header_offset+node_size(%rsi)   


        ret  


  


cheers  
  
bruce  



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