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[PATCH] fix libgcc2 ICE when building for powerpc-none-linux-gnuspe

From: Nathan Froyd <froydnj at codesourcery dot com>
To: gcc-patches at gcc dot gnu dot org
Date: Thu, 14 Jun 2007 08:58:25 -0700
Subject: [PATCH] fix libgcc2 ICE when building for powerpc-none-linux-gnuspe

The attached patch fixes a ICE that occurs when compiling libgcc for
powerpc-none-linux-gnuspe.  The failure mode is:

/scratch/froydnj/fsf-mainline/src/gcc-mainline/libgcc/../gcc/libgcc2.c: In function '__powitf2':
/scratch/froydnj/fsf-mainline/src/gcc-mainline/libgcc/../gcc/libgcc2.c:1743: error: unrecognizable insn:
(insn 91 89 92 11 /scratch/froydnj/fsf-mainline/src/gcc-mainline/libgcc/../gcc/libgcc2.c:1742 (set (subreg:TF (reg:TI 165) 0)
        (mem/u/c/i:TF (reg/f:SI 166) [0 S16 A128])) -1 (expr_list:REG_LIBCALL_ID (const_int 2 [0x2])
        (nil)))

The fix is to extend the *frob_ti_tf_2 pattern to accept any
input_operand as its source, as the existing *frob_ti_tf pattern does.

Bootstrapped and regtested on powerpc-none-linux-gnuspe.  OK to commit?

-Nathan

gcc/
2007-06-14  Nathan Froyd  <froydnj@codesourcery.com>

	* config/rs6000/spe.md (*frob_ti_tf_2): Specify an input_operand
	as the source of the set.

Attachment: frob_ti_tf.patch
Description: Text document

Follow-Ups:
- Re: [PATCH] fix libgcc2 ICE when building for powerpc-none-linux-gnuspe
  - From: Mark Mitchell

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