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[PULL,v3,05/38] tcg/ppc: Use ADDPCIS in tcg_out_movi_int

Message ID 20231023181329.171490-6-richard.henderson@linaro.org
State Accepted
Commit 776cd9b64834d735db9c4cac7924497509739755
Headers show
Series [PULL,v3,01/38] tcg/ppc: Untabify tcg-target.c.inc | expand

Commit Message

Richard Henderson Oct. 23, 2023, 6:12 p.m. UTC 
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 tcg/ppc/tcg-target.c.inc | 13 +++++++++++++
 1 file changed, 13 insertions(+)
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Patch

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);