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(sched_analyze_2): Don't ignore USE insns when creating dependencies.

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(sched_analyze): Likewise.

From-SVN: r4656
This commit is contained in:
Jim Wilson 1993-06-10 09:55:59 -07:00
parent e04408387a
commit 35c7a24d64
1 changed files with 4 additions and 8 deletions
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12
gcc/sched.c
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@ -1881,11 +1881,9 @@ sched_analyze_2 (x, insn)
for (i = 0; i < FIRST_PSEUDO_REGISTER; i++)
{
for (u = reg_last_uses[i]; u; u = XEXP (u, 1))
if (GET_CODE (PATTERN (XEXP (u, 0))) != USE)
add_dependence (insn, XEXP (u, 0), REG_DEP_ANTI);
add_dependence (insn, XEXP (u, 0), REG_DEP_ANTI);
reg_last_uses[i] = 0;
if (reg_last_sets[i]
&& GET_CODE (PATTERN (reg_last_sets[i])) != USE)
if (reg_last_sets[i])
add_dependence (insn, reg_last_sets[i], 0);
reg_last_sets[i] = insn;
}
@ -2026,11 +2024,9 @@ sched_analyze (head, tail)
if (call_used_regs[i] || global_regs[i])
{
for (u = reg_last_uses[i]; u; u = XEXP (u, 1))
if (GET_CODE (PATTERN (XEXP (u, 0))) != USE)
add_dependence (insn, XEXP (u, 0), REG_DEP_ANTI);
add_dependence (insn, XEXP (u, 0), REG_DEP_ANTI);
reg_last_uses[i] = 0;
if (reg_last_sets[i]
&& GET_CODE (PATTERN (reg_last_sets[i])) != USE)
if (reg_last_sets[i])
add_dependence (insn, reg_last_sets[i], REG_DEP_ANTI);
reg_last_sets[i] = insn;
/* Insn, being a CALL_INSN, magically depends on