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Fix 2 ia64-linux gas testsuite failures.

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* config/tc-ia64.c (is_conditional_branch): Rewrite to exclude mod
	sched branches.
This commit is contained in:
Jim Wilson 2001-07-05 02:30:21 +00:00
parent 2a1e2a6d6e
commit 3e37788f8d
2 changed files with 20 additions and 5 deletions
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5
gas/ChangeLog
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@ -1,3 +1,8 @@
2001-07-04 Jim Wilson <wilson@redhat.com>
* config/tc-ia64.c (is_conditional_branch): Rewrite to exclude mod
sched branches.
2001-07-05 Ben Elliston <bje@redhat.com>
* read.c (s_fill): Correct spelling error in comments.

20
gas/config/tc-ia64.c
View file

@ -6914,19 +6914,29 @@ ia64_canonicalize_symbol_name (name)
return name;
}
/* Return true if idesc is a conditional branch instruction. */
/* Return true if idesc is a conditional branch instruction. This excludes
the modulo scheduled branches, and br.ia. Mod-sched branches are excluded
because they always read/write resources regardless of the value of the
qualifying predicate. br.ia must always use p0, and hence is always
taken. Thus this function returns true for branches which can fall
through, and which use no resources if they do fall through. */
static int
is_conditional_branch (idesc)
struct ia64_opcode *idesc;
{
/* br is a conditional branch. Everything that starts with br. except
br.ia is a conditional branch. Everything that starts with brl is a
conditional branch. */
br.ia, br.c{loop,top,exit}, and br.w{top,exit} is a conditional branch.
Everything that starts with brl is a conditional branch. */
return (idesc->name[0] == 'b' && idesc->name[1] == 'r'
&& (idesc->name[2] == '\0'
|| (idesc->name[2] == '.' && idesc->name[3] != 'i')
|| idesc->name[2] == 'l'));
|| (idesc->name[2] == '.' && idesc->name[3] != 'i'
&& idesc->name[3] != 'c' && idesc->name[3] != 'w')
|| idesc->name[2] == 'l'
/* br.cond, br.call, br.clr */
|| (idesc->name[2] == '.' && idesc->name[3] == 'c'
&& (idesc->name[4] == 'a' || idesc->name[4] == 'o'
|| (idesc->name[4] == 'l' && idesc->name[5] == 'r')))));
}
/* Return whether the given opcode is a taken branch. If there's any doubt,