[v3] tcg/ppc: direct branching, power9, power10

[PATCH v3 13/14] tcg/ppc: Use PLD in tcg_out_goto_tb

Richard Henderson posted 14 patches 2 years, 5 months ago

Diff against v4
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Maintainers: Richard Henderson <richard.henderson@linaro.org>, WANG Xuerui <git@xen0n.name>, "Philippe Mathieu-Daudé" <philmd@linaro.org>, Aurelien Jarno <aurelien@aurel32.net>, Huacai Chen <chenhuacai@kernel.org>, Jiaxun Yang <jiaxun.yang@flygoat.com>, Aleksandar Rikalo <aleksandar.rikalo@syrmia.com>, Palmer Dabbelt <palmer@dabbelt.com>, Alistair Francis <Alistair.Francis@wdc.com>, Stefan Weil <sw@weilnetz.de>

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[PATCH v3 13/14] tcg/ppc: Use PLD in tcg_out_goto_tb

Posted by Richard Henderson 2 years, 5 months ago

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 tcg/ppc/tcg-target.c.inc | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tcg/ppc/tcg-target.c.inc b/tcg/ppc/tcg-target.c.inc
index 0cdb7ef37a..20aaa90af2 100644
--- a/tcg/ppc/tcg-target.c.inc
+++ b/tcg/ppc/tcg-target.c.inc
@@ -2708,6 +2708,9 @@ static void tcg_out_goto_tb(TCGContext *s, int which)
     if (USE_REG_TB) {
         ptrdiff_t offset = ppc_tbrel_diff(s, (void *)ptr);
         tcg_out_mem_long(s, LD, LDX, TCG_REG_TMP1, TCG_REG_TB, offset);
+    } else if (have_isa_3_10) {
+        ptrdiff_t offset = tcg_pcrel_diff_for_prefix(s, (void *)ptr);
+        tcg_out_8ls_d(s, PLD, TCG_REG_TMP1, 0, offset, 1);
     } else if (have_isa_3_00) {
         ptrdiff_t offset = tcg_pcrel_diff(s, (void *)ptr) - 4;
         lo = offset;
-- 
2.34.1