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Re: [expand PATCH] PR/40597 part 2: fix powerpc bootstrap

From: Paolo Bonzini <paolo dot bonzini at gmail dot com>
To: Eric Botcazou <ebotcazou at adacore dot com>
Cc: gcc-patches at gcc dot gnu dot org
Date: Wed, 08 Jul 2009 00:02:35 +0200
Subject: Re: [expand PATCH] PR/40597 part 2: fix powerpc bootstrap
References: <h2f2up$69n$1@ger.gmane.org> <200907031817.54608.ebotcazou@adacore.com>

Reduced C testcase attached. The conversion in emit_store_flag_1
	  convert_move (target, tem,
			0 == (STORE_FLAG_VALUE
			&  ((HOST_WIDE_INT) 1
				<<  (GET_MODE_BITSIZE (word_mode) -1))));
is performed unsigned, while it would need to be signed.

Thanks. The testcase didn't abort for me, but with the attached patch GCC uses the right flavor of shift. Bootstrapped/regtested with Ada included on x86_64-pc-linux-gnu.

Ok?

Paolo

Attachment: gcc-ada.patch
Description: Text document

Follow-Ups:
- Re: [expand PATCH] PR/40597 part 2: fix powerpc bootstrap
  - From: Eric Botcazou

References:
- [expand PATCH] PR/40597 part 2: fix powerpc bootstrap
  - From: Paolo Bonzini
- Re: [expand PATCH] PR/40597 part 2: fix powerpc bootstrap
  - From: Eric Botcazou

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