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RISC-V: Fix infinite compilation of VSETVL PASS

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This patch fixes issue reported by Jeff.

Testing is running. Ok for trunk if I passed the testing with no regression ?

gcc/ChangeLog:

	* config/riscv/riscv-vsetvl.cc (pre_vsetvl::emit_vsetvl): Fix inifinite compilation.
	(pre_vsetvl::remove_vsetvl_pre_insns): Ditto.
This commit is contained in:
Juzhe-Zhong 2024-02-06 07:12:24 +08:00 • committed by Pan Li
parent d3eac7d96d
commit d29136ad32
1 changed files with 4 additions and 5 deletions
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9
gcc/config/riscv/riscv-vsetvl.cc
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@ -2281,9 +2281,8 @@ private:
}
}
void remove_vsetvl_insn (const vsetvl_info &info)
void remove_vsetvl_insn (rtx_insn *rinsn)
{
rtx_insn *rinsn = info.get_insn ()->rtl ();
if (dump_file)
{
fprintf (dump_file, " Eliminate insn %d:\n", INSN_UID (rinsn));
@ -3231,7 +3230,7 @@ pre_vsetvl::emit_vsetvl ()
if (curr_info.delete_p ())
{
if (vsetvl_insn_p (insn->rtl ()))
remove_vsetvl_insn (curr_info);
remove_vsetvl_insn (curr_info.get_insn ()->rtl ());
continue;
}
else if (curr_info.valid_p ())
@ -3269,7 +3268,7 @@ pre_vsetvl::emit_vsetvl ()
for (const vsetvl_info &item : m_delete_list)
{
gcc_assert (vsetvl_insn_p (item.get_insn ()->rtl ()));
remove_vsetvl_insn (item);
remove_vsetvl_insn (item.get_insn ()->rtl ());
}
/* Insert vsetvl info that was not deleted after lift up. */
@ -3434,7 +3433,7 @@ pre_vsetvl::remove_vsetvl_pre_insns ()
INSN_UID (rinsn));
print_rtl_single (dump_file, rinsn);
}
remove_insn (rinsn);
remove_vsetvl_insn (rinsn);
}
}