Update the architecture API: architecture help is mandatory.
Update all architectures (some with pointer to the specs, when available).
/trunk/docs/overview.txt | 8 8 0 0 ++++++++
/trunk/arch/arm/config.in | 3 3 0 0 +++
/trunk/arch/powerpc/config.in | 3 3 0 0 +++
/trunk/arch/ia64/config.in | 3 3 0 0 +++
/trunk/arch/alpha/config.in | 2 2 0 0 ++
/trunk/arch/x86/config.in | 3 3 0 0 +++
/trunk/arch/mips/config.in | 3 3 0 0 +++
/trunk/arch/sh/config.in | 3 3 0 0 +++
/trunk/arch/x86_64/config.in | 3 3 0 0 +++
9 files changed, 31 insertions(+)
1 diff -durN gcc-3.4.6.orig/gcc/flow.c gcc-3.4.6/gcc/flow.c
2 --- gcc-3.4.6.orig/gcc/flow.c 2005-09-01 22:51:09.000000000 +0200
3 +++ gcc-3.4.6/gcc/flow.c 2007-08-15 23:00:30.000000000 +0200
5 rtx set_src = SET_SRC (pc_set (BB_END (bb)));
6 rtx cond_true = XEXP (set_src, 0);
7 rtx reg = XEXP (cond_true, 0);
8 + enum rtx_code inv_cond;
10 if (GET_CODE (reg) == SUBREG)
11 reg = SUBREG_REG (reg);
12 @@ -1892,11 +1893,13 @@
13 in the form of a comparison of a register against zero.
14 If the condition is more complex than that, then it is safe
15 not to record any information. */
16 - if (GET_CODE (reg) == REG
17 + inv_cond = reversed_comparison_code (cond_true, BB_END (bb));
18 + if (inv_cond != UNKNOWN
19 + && GET_CODE (reg) == REG
20 && XEXP (cond_true, 1) == const0_rtx)
23 - = gen_rtx_fmt_ee (reverse_condition (GET_CODE (cond_true)),
24 + = gen_rtx_fmt_ee (inv_cond,
25 GET_MODE (cond_true), XEXP (cond_true, 0),
27 if (GET_CODE (XEXP (set_src, 1)) == PC)