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riscv-gcc-1
Commit 35c7a24d by Jim Wilson
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(sched_analyze_2): Don't ignore USE insns when creating dependencies. 

(sched_analyze): Likewise.

From-SVN: r4656
parent e0440838
Showing with 4 additions and 8 deletions
gcc/sched.c
...@@ -1881,11 +1881,9 @@ sched_analyze_2 (x, insn) ...@@ -1881,11 +1881,9 @@ sched_analyze_2 (x, insn)
for (i = 0; i < FIRST_PSEUDO_REGISTER; i++) for (i = 0; i < FIRST_PSEUDO_REGISTER; i++)
{ {
for (u = reg_last_uses[i]; u; u = XEXP (u, 1)) 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; reg_last_uses[i] = 0;
if (reg_last_sets[i] if (reg_last_sets[i])
&& GET_CODE (PATTERN (reg_last_sets[i])) != USE)
add_dependence (insn, reg_last_sets[i], 0); add_dependence (insn, reg_last_sets[i], 0);
reg_last_sets[i] = insn; reg_last_sets[i] = insn;
} }
...@@ -2026,11 +2024,9 @@ sched_analyze (head, tail) ...@@ -2026,11 +2024,9 @@ sched_analyze (head, tail)
if (call_used_regs[i] || global_regs[i]) if (call_used_regs[i] || global_regs[i])
{ {
for (u = reg_last_uses[i]; u; u = XEXP (u, 1)) 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; reg_last_uses[i] = 0;
if (reg_last_sets[i] if (reg_last_sets[i])
&& GET_CODE (PATTERN (reg_last_sets[i])) != USE)
add_dependence (insn, reg_last_sets[i], REG_DEP_ANTI); add_dependence (insn, reg_last_sets[i], REG_DEP_ANTI);
reg_last_sets[i] = insn; reg_last_sets[i] = insn;
/* Insn, being a CALL_INSN, magically depends on /* Insn, being a CALL_INSN, magically depends on
......
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