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(output_call): Don't use the delay slot of a bsr.n 

to modify the return address, unless -O2 specified.

From-SVN: r3513
This commit is contained in:
John Hassey 1993-02-23 02:10:03 +00:00
parent 0ef08a071a
commit d4f8225ab7
1 changed files with 9 additions and 3 deletions
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12
gcc/config/m88k/m88k.c
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@ -861,14 +861,20 @@ output_call (operands, addr)
NOTE_LINE_NUMBER (jump) = NOTE_INSN_DELETED;
NOTE_SOURCE_FILE (jump) = 0;
/* If we loose, we must use the non-delay form. This is unlikely
/* We only do this optimization if -O2, modifying the value of
r1 in the delay slot confuses debuggers and profilers on some
systems.
If we loose, we must use the non-delay form. This is unlikely
to ever happen. If it becomes a problem, claim that a call
has two delay slots and only the second can be filled with
a jump. */
#ifdef AS_BUG_IMMEDIATE_LABEL /* The assembler restricts immediate values. */
if (! ADD_INTVAL (delta * 2))
if (optimize < 2
|| ! ADD_INTVAL (delta * 2))
#else
if (! ADD_INTVAL (delta))
if (optimize < 2
|| ! ADD_INTVAL (delta))
#endif
{
operands[1] = dest;