tcg-arm: Use movi32 + blx for calls on v7
Work better with branch predition when we have movw+movt,
as the size of the code is the same. Perhaps re-evaluate
when we have a proper constant pool.
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
diff --git a/tcg/arm/tcg-target.c b/tcg/arm/tcg-target.c
index 5fa3cb1..eb697f2 100644
--- a/tcg/arm/tcg-target.c
+++ b/tcg/arm/tcg-target.c
@@ -1016,6 +1016,9 @@
} else {
tcg_out_bl(s, COND_AL, val);
}
+ } else if (use_armv7_instructions) {
+ tcg_out_movi32(s, COND_AL, TCG_REG_TMP, addr);
+ tcg_out_blx(s, COND_AL, TCG_REG_TMP);
} else {
tcg_out_dat_imm(s, COND_AL, ARITH_ADD, TCG_REG_R14, TCG_REG_PC, 4);
tcg_out_ld32_12(s, COND_AL, TCG_REG_PC, TCG_REG_PC, -4);