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| author | Jakub Jelinek <jakub@redhat.com> | 2007-08-30 10:25:36 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2007-08-30 10:25:36 +0200 |
| commit | c75c6d11bcc4a54e608d46a203a19e62cda55785 (patch) | |
| tree | 47d702ba085795189fe469e869366223fc7c596c /gcc/config | |
| parent | a996720c4e3629eb39b2fd02e4c3053f04a3c6dd (diff) | |
| download | gcc-c75c6d11bcc4a54e608d46a203a19e62cda55785.zip gcc-c75c6d11bcc4a54e608d46a203a19e62cda55785.tar.gz gcc-c75c6d11bcc4a54e608d46a203a19e62cda55785.tar.bz2 | |
rs6000.c (rs6000_emit_sync): For QI or HI mode used_m...
* config/rs6000/rs6000.c (rs6000_emit_sync): For QI or HI mode
used_m, even if it is 32-bit aligned, adjust used_m MEM to have
SImode and update m. Don't run gen_lowpart_common on arbitrary
memory address, force it to register first.
* gcc.dg/sync-2.c (AI_ALIGN): Define if not defined.
(AI): Add AI_ALIGN.
* gcc.dg/sync-3.c: New test.
From-SVN: r127922
Diffstat (limited to 'gcc/config')
| -rw-r--r-- | gcc/config/rs6000/rs6000.c | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c index 38659bf..0af3f69 100644 --- a/gcc/config/rs6000/rs6000.c +++ b/gcc/config/rs6000/rs6000.c @@ -12757,14 +12757,16 @@ rs6000_emit_sync (enum rtx_code code, enum machine_mode mode, ishift = GET_MODE_BITSIZE (SImode) - GET_MODE_BITSIZE (mode); shift = GEN_INT (ishift); + used_m = change_address (used_m, SImode, 0); } else { rtx addrSI, aligned_addr; int shift_mask = mode == QImode ? 0x18 : 0x10; - addrSI = force_reg (SImode, gen_lowpart_common (SImode, - XEXP (used_m, 0))); + addrSI = gen_lowpart_common (SImode, + force_reg (Pmode, XEXP (used_m, 0))); + addrSI = force_reg (SImode, addrSI); shift = gen_reg_rtx (SImode); emit_insn (gen_rlwinm (shift, addrSI, GEN_INT (3), @@ -12777,14 +12779,14 @@ rs6000_emit_sync (enum rtx_code code, enum machine_mode mode, 1, OPTAB_LIB_WIDEN); used_m = change_address (used_m, SImode, aligned_addr); set_mem_align (used_m, 32); - /* It's safe to keep the old alias set of USED_M, because - the operation is atomic and only affects the original - USED_M. */ - if (GET_CODE (m) == NOT) - m = gen_rtx_NOT (SImode, used_m); - else - m = used_m; } + /* It's safe to keep the old alias set of USED_M, because + the operation is atomic and only affects the original + USED_M. */ + if (GET_CODE (m) == NOT) + m = gen_rtx_NOT (SImode, used_m); + else + m = used_m; if (GET_CODE (op) == NOT) { |