[PATCH] [mips] [IAS] Make .module directives change AssemblerOptions->front().

[Toma Tabacu]

I was thinking of the following test:

  # RUN: not llvm-mc %s -arch=mips -mcpu=mips32 -mattr=+fp64,-nooddspreg 2> %t0 | \
  # RUN:   FileCheck %s
  
    .module nooddspreg
    add.s $f1, $f2, $f4
  # CHECK: :[[@LINE-1]]:15: error: -mno-odd-spreg prohibits the use of odd FPU registers
  
    .set oddspreg
    add.s $f1, $f2, $f4
  # CHECK-NOT: :[[@LINE-1]]:15: error: -mno-odd-spreg prohibits the use of odd FPU registers
  
    .set mips0
    add.s $f1, $f2, $f4
  # CHECK: :[[@LINE-1]]:15: error: -mno-odd-spreg prohibits the use of odd FPU registers

Currently, the last check should fail because AssemblerOptions->front() wasn't updated when we processed the ".module nooddspreg".

However, seeing as the IAS doesn't have support for .set oddspreg/nooddspreg, the only option left is to use .module/.set fp=23/64/xx, which I don't really know how to.
I would appreciate some help with this.


http://reviews.llvm.org/D10643

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