[PATCH 24/29] tcg/ppc: Support TCG_COND_TST{EQ,NE}

[Richard Henderson]

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 tcg/ppc/tcg-target.c.inc | 31 +++++++++++++++++++++++++++++--
 1 file changed, 29 insertions(+), 2 deletions(-)

diff --git a/tcg/ppc/tcg-target.c.inc b/tcg/ppc/tcg-target.c.inc
index fe141a26f9..5a316f364d 100644
--- a/tcg/ppc/tcg-target.c.inc
+++ b/tcg/ppc/tcg-target.c.inc
@@ -669,9 +669,11 @@ enum {
     CR_SO
 };
 
-static const uint32_t tcg_to_bc[] = {
+static const uint32_t tcg_to_bc[16] = {
     [TCG_COND_EQ]  = BC | BI(0, CR_EQ) | BO_COND_TRUE,
     [TCG_COND_NE]  = BC | BI(0, CR_EQ) | BO_COND_FALSE,
+    [TCG_COND_TSTEQ]  = BC | BI(0, CR_EQ) | BO_COND_TRUE,
+    [TCG_COND_TSTNE]  = BC | BI(0, CR_EQ) | BO_COND_FALSE,
     [TCG_COND_LT]  = BC | BI(0, CR_LT) | BO_COND_TRUE,
     [TCG_COND_GE]  = BC | BI(0, CR_LT) | BO_COND_FALSE,
     [TCG_COND_LE]  = BC | BI(0, CR_GT) | BO_COND_FALSE,
@@ -683,9 +685,11 @@ static const uint32_t tcg_to_bc[] = {
 };
 
 /* The low bit here is set if the RA and RB fields must be inverted.  */
-static const uint32_t tcg_to_isel[] = {
+static const uint32_t tcg_to_isel[16] = {
     [TCG_COND_EQ]  = ISEL | BC_(0, CR_EQ),
     [TCG_COND_NE]  = ISEL | BC_(0, CR_EQ) | 1,
+    [TCG_COND_TSTEQ] = ISEL | BC_(0, CR_EQ),
+    [TCG_COND_TSTNE] = ISEL | BC_(0, CR_EQ) | 1,
     [TCG_COND_LT]  = ISEL | BC_(0, CR_LT),
     [TCG_COND_GE]  = ISEL | BC_(0, CR_LT) | 1,
     [TCG_COND_LE]  = ISEL | BC_(0, CR_GT) | 1,
@@ -1699,6 +1703,12 @@ static void tcg_out_cmp(TCGContext *s, int cond, TCGArg 
arg1, TCGArg arg2,
         imm = 0;
         break;
 
+    case TCG_COND_TSTEQ:
+    case TCG_COND_TSTNE:
+        tcg_debug_assert(cr == 0);
+        tcg_out_and_rc(s, type, TCG_REG_R0, arg1, arg2, const_arg2, true);
+        return;
+
     case TCG_COND_LT:
     case TCG_COND_GE:
     case TCG_COND_LE:
@@ -1909,6 +1919,16 @@ static void tcg_out_setcond(TCGContext *s, TCGType type, 
TCGCond cond,
         tcg_out_setcond_ne0(s, type, arg0, arg1, neg);
         break;
 
+    case TCG_COND_TSTEQ:
+        tcg_out_and_rc(s, type, TCG_REG_R0, arg1, arg2, const_arg2, false);
+        tcg_out_setcond_eq0(s, type, arg0, TCG_REG_R0, neg);
+        break;
+
+    case TCG_COND_TSTNE:
+        tcg_out_and_rc(s, type, TCG_REG_R0, arg1, arg2, const_arg2, false);
+        tcg_out_setcond_ne0(s, type, arg0, TCG_REG_R0, neg);
+        break;
+
     case TCG_COND_LE:
     case TCG_COND_LEU:
         inv = true;
@@ -2081,6 +2101,13 @@ static void tcg_out_cmp2(TCGContext *s, const TCGArg 
*args,
         tcg_out32(s, op | BT(0, CR_EQ) | BA(6, CR_EQ) | BB(7, CR_EQ));
         break;
 
+    case TCG_COND_TSTEQ:
+    case TCG_COND_TSTNE:
+        tcg_out_and_rc(s, TCG_TYPE_I32, TCG_REG_R0, al, bl, blconst, false);
+        tcg_out_and_rc(s, TCG_TYPE_I32, TCG_REG_TMP1, ah, bh, bhconst, false);
+        tcg_out32(s, OR | SAB(TCG_REG_R0, TCG_REG_R0, TCG_REG_TMP1) | 1);
+        break;
+
     case TCG_COND_LT:
     case TCG_COND_LE:
     case TCG_COND_GT:
-- 
2.34.1