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[for-4.0,08/17] tcg/aarch64: Add constraints for x0, x1, x2

Message ID 20181112214503.22941-9-richard.henderson@linaro.org
State Superseded
Headers show
Series tcg: Move softmmu out-of-line | expand

Commit Message

Richard Henderson Nov. 12, 2018, 9:44 p.m. UTC 
These are function call arguments that we will need soon.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

---
 tcg/aarch64/tcg-target.inc.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

-- 
2.17.2
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Patch

diff --git a/tcg/aarch64/tcg-target.inc.c b/tcg/aarch64/tcg-target.inc.c
index 30091f6a69..148de0b7f2 100644
--- a/tcg/aarch64/tcg-target.inc.c
+++ b/tcg/aarch64/tcg-target.inc.c
@@ -125,6 +125,18 @@  static const char *target_parse_constraint(TCGArgConstraint *ct,
                                            const char *ct_str, TCGType type)
 {
     switch (*ct_str++) {
+    case 'a': /* x0 */
+        ct->ct |= TCG_CT_REG;
+        tcg_regset_set_reg(ct->u.regs, TCG_REG_X0);
+        break;
+    case 'b': /* x1 */
+        ct->ct |= TCG_CT_REG;
+        tcg_regset_set_reg(ct->u.regs, TCG_REG_X1);
+        break;
+    case 'c': /* x2 */
+        ct->ct |= TCG_CT_REG;
+        tcg_regset_set_reg(ct->u.regs, TCG_REG_X2);
+        break;
     case 'r': /* general registers */
         ct->ct |= TCG_CT_REG;
         ct->u.regs |= 0xffffffffu;