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authorRichard Henderson <rth@twiddle.net>2013-07-27 14:09:47 -1000
committerRichard Henderson <rth@twiddle.net>2013-10-01 10:20:33 -0700
commitd9f4dde4a6d34f14509664edc262016f21be5aac (patch)
tree01bb2fb6b53573f2976e8e8b850d23d5bf3f4940 /include
parent23bbc25085ceac827e1da9bebead058f436f66a6 (diff)
tcg-arm: Rearrange slow-path qemu_ld/st
Use the new helper_ret_*_mmu routines. Use a conditional call to arrange for a tail-call from the store path, and to load the return address for the helper for the load path. Signed-off-by: Richard Henderson <rth@twiddle.net>
Diffstat (limited to 'include')
-rw-r--r--include/exec/exec-all.h16
1 files changed, 1 insertions, 15 deletions
diff --git a/include/exec/exec-all.h b/include/exec/exec-all.h
index dc27f33152..8dd15948d8 100644
--- a/include/exec/exec-all.h
+++ b/include/exec/exec-all.h
@@ -324,21 +324,7 @@ extern uintptr_t tci_tb_ptr;
In some implementations, we pass the "logical" return address manually;
in others, we must infer the logical return from the true return. */
#if defined(CONFIG_QEMU_LDST_OPTIMIZATION) && defined(CONFIG_SOFTMMU)
-# if defined(__arm__)
-/* We define two insns between the return address and the branch back to
- straight-line. Find and decode that branch insn. */
-# define GETRA_LDST(RA) tcg_getra_ldst(RA)
-static inline uintptr_t tcg_getra_ldst(uintptr_t ra)
-{
- int32_t b;
- ra += 8; /* skip the two insns */
- b = *(int32_t *)ra; /* load the branch insn */
- b = (b << 8) >> (8 - 2); /* extract the displacement */
- ra += 8; /* branches are relative to pc+8 */
- ra += b; /* apply the displacement */
- return ra;
-}
-# elif defined(__aarch64__)
+# if defined(__aarch64__)
# define GETRA_LDST(RA) tcg_getra_ldst(RA)
static inline uintptr_t tcg_getra_ldst(uintptr_t ra)
{