diff options
| author | H.J. Lu <hongjiu.lu@intel.com> | 2011-07-10 21:42:08 +0000 |
|---|---|---|
| committer | H.J. Lu <hjl@gcc.gnu.org> | 2011-07-10 14:42:08 -0700 |
| commit | 9e419e387cb8f3dfef192b236e089a1446636bd0 (patch) | |
| tree | 38386debdc43975f749cee923fc30856c20b762b | |
| parent | 3db72de3129796a961e3d495ee559cc5abb23c18 (diff) | |
| download | gcc-9e419e387cb8f3dfef192b236e089a1446636bd0.zip gcc-9e419e387cb8f3dfef192b236e089a1446636bd0.tar.gz gcc-9e419e387cb8f3dfef192b236e089a1446636bd0.tar.bz2 | |
Use movl instead of movabs for x32.
2011-07-10 H.J. Lu <hongjiu.lu@intel.com>
* config/i386/i386.c (ix86_trampoline_init): Use movl instead
of movabs for x32.
From-SVN: r176129
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/config/i386/i386.c | 18 |
2 files changed, 19 insertions, 4 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 6f015ee..752e252 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2011-07-10 H.J. Lu <hongjiu.lu@intel.com> + + * config/i386/i386.c (ix86_trampoline_init): Use movl instead + of movabs for x32. + 2011-07-10 Richard Henderson <rth@redhat.com> * config/i386/i386.c (x86_output_mi_thunk): Generate rtl and diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c index f948a32..a46101b 100644 --- a/gcc/config/i386/i386.c +++ b/gcc/config/i386/i386.c @@ -22730,7 +22730,7 @@ ix86_trampoline_init (rtx m_tramp, tree fndecl, rtx chain_value) } else { - int offset = 0; + int offset = 0, size; /* Load the function address to r11. Try to load address using the shorter movl instead of movabs. We may want to support @@ -22759,11 +22759,21 @@ ix86_trampoline_init (rtx m_tramp, tree fndecl, rtx chain_value) /* Load static chain using movabs to r10. */ mem = adjust_address (m_tramp, HImode, offset); - emit_move_insn (mem, gen_int_mode (0xba49, HImode)); + /* Use the shorter movl instead of movabs for x32. */ + if (TARGET_X32) + { + size = 6; + emit_move_insn (mem, gen_int_mode (0xba41, HImode)); + } + else + { + size = 10; + emit_move_insn (mem, gen_int_mode (0xba49, HImode)); + } - mem = adjust_address (m_tramp, DImode, offset + 2); + mem = adjust_address (m_tramp, ptr_mode, offset + 2); emit_move_insn (mem, chain_value); - offset += 10; + offset += size; /* Jump to r11; the last (unused) byte is a nop, only there to pad the write out to a single 32-bit store. */ |