target-mips: convert bitfield ops to TCG

Bitfield operations can be written with very few TCG instructions
(between 2 and 5), so it is worth converting them to TCG.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5678 c046a42c-6fe2-441c-8c8c-71466251a162

1 files changed, 1 insertions, 25 deletions

diff --git a/target-mips/op_helper.c b/target-mips/op_helper.c
index 3744728..b642593 100644
--- a/target-mips/op_helper.c
+++ b/target-mips/op_helper.c
@@ -1781,37 +1781,13 @@ target_ulong do_rdhwr_ccres(void)
     return 0;
 }
 
-/* Bitfield operations. */
-target_ulong do_ext(target_ulong t1, uint32_t pos, uint32_t size)
-{
-    return (int32_t)((t1 >> pos) & ((size < 32) ? ((1 << size) - 1) : ~0));
-}
-
-target_ulong do_ins(target_ulong t0, target_ulong t1, uint32_t pos, uint32_t size)
-{
-    target_ulong mask = ((size < 32) ? ((1 << size) - 1) : ~0) << pos;
-
-    return (int32_t)((t0 & ~mask) | ((t1 << pos) & mask));
-}
-
+/* Bit shuffle operations. */
 target_ulong do_wsbh(target_ulong t1)
 {
     return (int32_t)(((t1 << 8) & ~0x00FF00FF) | ((t1 >> 8) & 0x00FF00FF));
 }
 
 #if defined(TARGET_MIPS64)
-target_ulong do_dext(target_ulong t1, uint32_t pos, uint32_t size)
-{
-    return (t1 >> pos) & ((size < 64) ? ((1ULL << size) - 1) : ~0ULL);
-}
-
-target_ulong do_dins(target_ulong t0, target_ulong t1, uint32_t pos, uint32_t size)
-{
-    target_ulong mask = ((size < 64) ? ((1ULL << size) - 1) : ~0ULL) << pos;
-
-    return (t0 & ~mask) | ((t1 << pos) & mask);
-}
-
 target_ulong do_dsbh(target_ulong t1)
 {
     return ((t1 << 8) & ~0x00FF00FF00FF00FFULL) | ((t1 >> 8) & 0x00FF00FF00FF00FFULL);