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Re: [PATCH] Fix PR57451 (Incorrect debug ranges emitted for -freorder-blocks-and-partition -g)


On 08/19/2013 12:34 PM, Teresa Johnson wrote:
Ping.
Thanks,
Teresa

On Sun, Aug 11, 2013 at 9:35 PM, Teresa Johnson <tejohnson@google.com> wrote:
This patch fixes PR rtl-optimizations/57451 by preventing scopes and
therefore lexical blocks from crossing split section boundaries.
This will prevent debug info generation from using DW_AT_low_pc/high_pc
pairs across the section boundary.

Bootstrapped and tested on x86_64-unknown-linux-gnu. With this patch,
a profilebootstrap with -freorder-blocks-and-partition force-enabled
also passes. Ok for trunk?

Thanks,
Teresa

2013-08-11  Teresa Johnson  <tejohnson@google.com>

         PR rtl-optimizations/57451
         * final.c (reemit_insn_block_notes): Prevent lexical blocks
         from crossing split section boundaries.
This is fine. Is there any way you can turn the steps mentioned in 57451 into a dejagnu testcase? Clearly it would only work in a native configuration due to the need to run the instrumented program.

jeff


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