Patchwork [v3,09/29] tcg-aarch64: Implement mov with tcg_fmt_* functions

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Submitter Richard Henderson
Date Sept. 2, 2013, 5:54 p.m.
Message ID <1378144503-15808-10-git-send-email-rth@twiddle.net>
Download mbox | patch
Permalink /patch/272049/
State New
Headers show

Comments

Richard Henderson - Sept. 2, 2013, 5:54 p.m.
Avoid the magic numbers in the current implementation.

Signed-off-by: Richard Henderson <rth@twiddle.net>
---
 tcg/aarch64/tcg-target.c | 23 ++++++++++-------------
 1 file changed, 10 insertions(+), 13 deletions(-)

Patch

diff --git a/tcg/aarch64/tcg-target.c b/tcg/aarch64/tcg-target.c
index bd6f823..64c8d19 100644
--- a/tcg/aarch64/tcg-target.c
+++ b/tcg/aarch64/tcg-target.c
@@ -370,12 +370,17 @@  static inline void tcg_out_ldst_12(TCGContext *s,
               | op_type << 20 | scaled_uimm << 10 | rn << 5 | rd);
 }
 
-static inline void tcg_out_movr(TCGContext *s, bool ext, TCGReg rd, TCGReg src)
+/* Register to register move using ORR (shifted register with no shift). */
+static inline void tcg_out_movr(TCGContext *s, bool ext, TCGReg rd, TCGReg rm)
 {
-    /* register to register move using MOV (shifted register with no shift) */
-    /* using MOV 0x2a0003e0 | (shift).. */
-    unsigned int base = ext ? 0xaa0003e0 : 0x2a0003e0;
-    tcg_out32(s, base | src << 16 | rd);
+    tcg_fmt_Rdnm(s, INSN_ORR, ext, rd, TCG_REG_XZR, rm);
+}
+
+/* Register to register move using ADDI (move to/from SP).  */
+static inline void tcg_out_movr_sp(TCGContext *s, bool ext,
+                                   TCGReg rd, TCGReg rn)
+{
+    tcg_fmt_Rdn_aimm(s, INSN_ADDI, ext, rd, rn, 0);
 }
 
 static inline void tcg_out_movi_aux(TCGContext *s,
@@ -450,14 +455,6 @@  static inline void tcg_out_ldst(TCGContext *s, enum aarch64_ldst_op_data data,
     tcg_out_ldst_r(s, data, type, rd, rn, TCG_REG_TMP);
 }
 
-/* mov alias implemented with add immediate, useful to move to/from SP */
-static inline void tcg_out_movr_sp(TCGContext *s, bool ext, TCGReg rd, TCGReg rn)
-{
-    /* using ADD 0x11000000 | (ext) | rn << 5 | rd */
-    unsigned int base = ext ? 0x91000000 : 0x11000000;
-    tcg_out32(s, base | rn << 5 | rd);
-}
-
 static inline void tcg_out_mov(TCGContext *s,
                                TCGType type, TCGReg ret, TCGReg arg)
 {