From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Cc: jniethe5@gmail.com
Subject: [PATCH v4 05/13] tcg/ppc: Use ADDPCIS in tcg_out_movi_int
Date: Fri, 13 Oct 2023 10:10:04 -0700 [thread overview]
Message-ID: <20231013171012.122980-6-richard.henderson@linaro.org> (raw)
In-Reply-To: <20231013171012.122980-1-richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
tcg/ppc/tcg-target.c.inc | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/tcg/ppc/tcg-target.c.inc b/tcg/ppc/tcg-target.c.inc
index b0b8cd2390..226b5598ac 100644
--- a/tcg/ppc/tcg-target.c.inc
+++ b/tcg/ppc/tcg-target.c.inc
@@ -1055,6 +1055,19 @@ static void tcg_out_movi_int(TCGContext *s, TCGType type, TCGReg ret,
return;
}
+ /* Load addresses within 2GB with 2 insns. */
+ if (have_isa_3_00) {
+ intptr_t hi = tcg_pcrel_diff(s, (void *)arg) - 4;
+ int16_t lo = hi;
+
+ hi -= lo;
+ if (hi == (int32_t)hi) {
+ tcg_out_addpcis(s, TCG_REG_TMP2, hi);
+ tcg_out32(s, ADDI | TAI(ret, TCG_REG_TMP2, lo));
+ return;
+ }
+ }
+
/* Load addresses within 2GB of TB with 2 (or rarely 3) insns. */
if (!in_prologue && USE_REG_TB && tb_diff == (int32_t)tb_diff) {
tcg_out_mem_long(s, ADDI, ADD, ret, TCG_REG_TB, tb_diff);
--
2.34.1
next prev parent reply other threads:[~2023-10-13 17:12 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-13 17:09 [PATCH v4 00/13] tcg/ppc: direct branching, power9, power10 Richard Henderson
2023-10-13 17:10 ` [PATCH v4 01/13] tcg/ppc: Untabify tcg-target.c.inc Richard Henderson
2023-10-13 17:10 ` [PATCH v4 02/13] tcg/ppc: Enable direct branching tcg_out_goto_tb with TCG_REG_TB Richard Henderson
2023-10-13 17:10 ` [PATCH v4 03/13] tcg/ppc: Reinterpret tb-relative to TB+4 Richard Henderson
2023-10-13 17:10 ` [PATCH v4 04/13] tcg/ppc: Use ADDPCIS in tcg_out_tb_start Richard Henderson
2023-10-13 17:10 ` Richard Henderson [this message]
2023-10-13 17:10 ` [PATCH v4 06/13] tcg/ppc: Use ADDPCIS for the constant pool Richard Henderson
2023-10-13 17:10 ` [PATCH v4 07/13] tcg/ppc: Use ADDPCIS in tcg_out_goto_tb Richard Henderson
2023-10-13 17:10 ` [PATCH v4 08/13] tcg/ppc: Use PADDI in tcg_out_movi Richard Henderson
2023-10-13 17:10 ` [PATCH v4 09/13] tcg/ppc: Use prefixed instructions in tcg_out_mem_long Richard Henderson
2023-10-13 17:10 ` [PATCH v4 10/13] tcg/ppc: Use PLD in tcg_out_movi for constant pool Richard Henderson
2023-10-13 17:10 ` [PATCH v4 11/13] tcg/ppc: Use prefixed instructions in tcg_out_dupi_vec Richard Henderson
2023-10-13 17:10 ` [PATCH v4 12/13] tcg/ppc: Use PLD in tcg_out_goto_tb Richard Henderson
2023-10-13 17:10 ` [PATCH v4 13/13] tcg/ppc: Disable TCG_REG_TB for Power9/Power10 Richard Henderson
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