This allows the tcg optimizer to see, and fold, all of the
constants involved in a GOT base register load sequence.
Signed-off-by: Richard Henderson <r...@twiddle.net>
---
target-openrisc/translate.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/target-openrisc/translate.c b/target-openrisc/translate.c
index 70aadbc..31f4307 100644
--- a/target-openrisc/translate.c
+++ b/target-openrisc/translate.c
@@ -189,7 +189,11 @@ static void gen_jump(DisasContext *dc, int32_t n26,
uint32_t reg, uint32_t op0)
tcg_gen_movi_tl(jmp_pc, tmp_pc);
break;
case 0x01: /* l.jal */
- tcg_gen_movi_tl(cpu_R[9], (dc->pc + 8));
+ tcg_gen_movi_tl(cpu_R[9], dc->pc + 8);
+ /* Optimize jal being used to load the PC for PIC. */
+ if (tmp_pc == dc->pc + 8) {
+ return;
+ }
tcg_gen_movi_tl(jmp_pc, tmp_pc);
break;
case 0x03: /* l.bnf */
--
2.5.5
