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| author | Jim Wilson <wilson@tuliptree.org> | 2001-07-05 02:30:21 +0000 |
|---|---|---|
| committer | Jim Wilson <wilson@tuliptree.org> | 2001-07-05 02:30:21 +0000 |
| commit | 3e37788f8d4f5cfa856054a2c7aabacdc1dc0bd1 (patch) | |
| tree | cf1bfd40f0904b5579e4da037fda118200e11c9e /gas | |
| parent | 2a1e2a6d6e3101f7b7bc031be2b95df14a693f31 (diff) | |
| download | gdb-3e37788f8d4f5cfa856054a2c7aabacdc1dc0bd1.zip gdb-3e37788f8d4f5cfa856054a2c7aabacdc1dc0bd1.tar.gz gdb-3e37788f8d4f5cfa856054a2c7aabacdc1dc0bd1.tar.bz2 | |
Fix 2 ia64-linux gas testsuite failures.
* config/tc-ia64.c (is_conditional_branch): Rewrite to exclude mod
sched branches.
Diffstat (limited to 'gas')
| -rw-r--r-- | gas/ChangeLog | 5 | ||||
| -rw-r--r-- | gas/config/tc-ia64.c | 20 |
2 files changed, 20 insertions, 5 deletions
diff --git a/gas/ChangeLog b/gas/ChangeLog index 5f2137f..9464ac7 100644 --- a/gas/ChangeLog +++ b/gas/ChangeLog @@ -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. diff --git a/gas/config/tc-ia64.c b/gas/config/tc-ia64.c index 0a3dcc6..5ba8157 100644 --- a/gas/config/tc-ia64.c +++ b/gas/config/tc-ia64.c @@ -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, |