diff mbox series

[20/29] tcg/sparc64: Support TCG_COND_TST{EQ,NE}

Message ID 20231025072707.833943-21-richard.henderson@linaro.org
State Superseded
Headers show
Series tcg: Introduce TCG_COND_TST{EQ,NE} | expand

Commit Message

Richard Henderson Oct. 25, 2023, 7:26 a.m. UTC 
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 tcg/sparc64/tcg-target.c.inc | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/tcg/sparc64/tcg-target.c.inc b/tcg/sparc64/tcg-target.c.inc
index e958e3c242..feeb318c39 100644
--- a/tcg/sparc64/tcg-target.c.inc
+++ b/tcg/sparc64/tcg-target.c.inc
@@ -606,9 +606,11 @@  static void tcg_out_div32(TCGContext *s, TCGReg rd, TCGReg rs1,
                    uns ? ARITH_UDIV : ARITH_SDIV);
 }
 
-static const uint8_t tcg_cond_to_bcond[] = {
+static const uint8_t tcg_cond_to_bcond[16] = {
     [TCG_COND_EQ] = COND_E,
     [TCG_COND_NE] = COND_NE,
+    [TCG_COND_TSTEQ] = COND_E,
+    [TCG_COND_TSTNE] = COND_NE,
     [TCG_COND_LT] = COND_L,
     [TCG_COND_GE] = COND_GE,
     [TCG_COND_LE] = COND_LE,
@@ -648,7 +650,8 @@  static void tcg_out_bpcc(TCGContext *s, int scond, int flags, TCGLabel *l)
 static void tcg_out_cmp(TCGContext *s, TCGCond cond,
                         TCGReg c1, int32_t c2, int c2const)
 {
-    tcg_out_arithc(s, TCG_REG_G0, c1, c2, c2const, ARITH_SUBCC);
+    tcg_out_arithc(s, TCG_REG_G0, c1, c2, c2const,
+                   is_tst_cond(cond) ? ARITH_ANDCC : ARITH_SUBCC);
 }
 
 static void tcg_out_brcond_i32(TCGContext *s, TCGCond cond, TCGReg arg1,
@@ -743,6 +746,15 @@  static void tcg_out_setcond_i32(TCGContext *s, TCGCond cond, TCGReg ret,
         cond = (cond == TCG_COND_EQ ? TCG_COND_GEU : TCG_COND_LTU);
 	break;
 
+    case TCG_COND_TSTEQ:
+    case TCG_COND_TSTNE:
+        /* Transform to inequality vs zero.  */
+        tcg_out_arithc(s, TCG_REG_T1, c1, c2, c2const, ARITH_AND);
+        c1 = TCG_REG_G0;
+        c2 = TCG_REG_T1, c2const = 0;
+        cond = (cond == TCG_COND_TSTEQ ? TCG_COND_GEU : TCG_COND_LTU);
+	break;
+
     case TCG_COND_GTU:
     case TCG_COND_LEU:
         /* If we don't need to load a constant into a register, we can