patches/gcc/3.4.6/180-pr15068-fix.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Tue Oct 14 21:30:27 2008 +0000 (2008-10-14)
changeset 935 e175e3538310
parent 339 bd5e0a849352
permissions -rw-r--r--
Introduce the notion of a 'sample comment'.

- presence of the sample's reported.by file is now mandatory.
- when saving a sample, reporter name & URL are queried, to avoid operator forget about creating the reported.by file.
- when saving a sample, one can store a few-liner comment.
- when recalling a sample, the reporter name, URL and comment (if present) are printed.
- update the powerpc-e500v2-linux-gnuspe sample to include Nate's comment (from his original mail).
- update all samples that were missing the reported.by file.

/trunk/scripts/saveSample.sh | 46 35 11 0 ++++++++++++++++++------
/trunk/scripts/showSamples.sh | 12 6 6 0 +++---
/trunk/samples/powerpc-e500v2-linux-gnuspe/reported.by | 15 15 0 0 ++++++++
/trunk/samples/samples.mk | 22 17 5 0 +++++++++--
4 files changed, 73 insertions(+), 22 deletions(-)
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diff -durN gcc-3.4.6.orig/gcc/flow.c gcc-3.4.6/gcc/flow.c
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--- gcc-3.4.6.orig/gcc/flow.c	2005-09-01 22:51:09.000000000 +0200
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+++ gcc-3.4.6/gcc/flow.c	2007-08-15 23:00:30.000000000 +0200
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@@ -1884,6 +1884,7 @@
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 	  rtx set_src = SET_SRC (pc_set (BB_END (bb)));
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 	  rtx cond_true = XEXP (set_src, 0);
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 	  rtx reg = XEXP (cond_true, 0);
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+ 	  enum rtx_code inv_cond;
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 	  if (GET_CODE (reg) == SUBREG)
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 	    reg = SUBREG_REG (reg);
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@@ -1892,11 +1893,13 @@
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 	     in the form of a comparison of a register against zero.  
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 	     If the condition is more complex than that, then it is safe
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 	     not to record any information.  */
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-	  if (GET_CODE (reg) == REG
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+ 	  inv_cond = reversed_comparison_code (cond_true, BB_END (bb));
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+ 	  if (inv_cond != UNKNOWN
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+	      && GET_CODE (reg) == REG
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 	      && XEXP (cond_true, 1) == const0_rtx)
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 	    {
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 	      rtx cond_false
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-		= gen_rtx_fmt_ee (reverse_condition (GET_CODE (cond_true)),
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+		= gen_rtx_fmt_ee (inv_cond,
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 				  GET_MODE (cond_true), XEXP (cond_true, 0),
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 				  XEXP (cond_true, 1));
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 	      if (GET_CODE (XEXP (set_src, 1)) == PC)