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| author | Hans-Peter Nilsson <hp@axis.com> | 2005-02-12 01:08:33 +0000 |
|---|---|---|
| committer | Hans-Peter Nilsson <hp@gcc.gnu.org> | 2005-02-12 01:08:33 +0000 |
| commit | f4ddadddf99edb3fd2ec0585c7463278d2f0e70c (patch) | |
| tree | 7a87f8b19e23ea4b3626c8884af1c2249355ac3d /gcc | |
| parent | 7e7e470f9bf455553ee08e9be90943fa3631a07b (diff) | |
| download | gcc-f4ddadddf99edb3fd2ec0585c7463278d2f0e70c.zip gcc-f4ddadddf99edb3fd2ec0585c7463278d2f0e70c.tar.gz gcc-f4ddadddf99edb3fd2ec0585c7463278d2f0e70c.tar.bz2 | |
re PR regression/19898 (cris-elf testsuite failure: gcc.c-torture/execute/strlen-1.c execution, -O2 and higher)
PR regression/19898.
* config/cris/cris.c (cris_notice_update_cc): When testing if insn
changes cc_status, use apply modified_in_p to part of cc_status
and insn, not cris_reg_overlap_mentioned_p on SET_DEST of insn
body.
From-SVN: r94914
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 8 | ||||
| -rw-r--r-- | gcc/config/cris/cris.c | 50 |
2 files changed, 20 insertions, 38 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 71e5b15..e70eb8b 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,11 @@ +2005-02-12 Hans-Peter Nilsson <hp@axis.com> + + PR regression/19898. + * config/cris/cris.c (cris_notice_update_cc): When testing if insn + changes cc_status, use apply modified_in_p to part of cc_status + and insn, not cris_reg_overlap_mentioned_p on SET_DEST of insn + body. + 2005-02-11 Richard Henderson <rth@redhat.com> * tree-complex.c (expand_complex_libcall): New. diff --git a/gcc/config/cris/cris.c b/gcc/config/cris/cris.c index 5fc6804..a01fe1e 100644 --- a/gcc/config/cris/cris.c +++ b/gcc/config/cris/cris.c @@ -1834,13 +1834,11 @@ cris_notice_update_cc (rtx exp, rtx insn) if (GET_CODE (exp) == SET) { if (cc_status.value1 - && cris_reg_overlap_mentioned_p (SET_DEST (exp), - cc_status.value1)) + && modified_in_p (cc_status.value1, insn)) cc_status.value1 = 0; if (cc_status.value2 - && cris_reg_overlap_mentioned_p (SET_DEST (exp), - cc_status.value2)) + && modified_in_p (cc_status.value2, insn)) cc_status.value2 = 0; } return; @@ -1970,14 +1968,12 @@ cris_notice_update_cc (rtx exp, rtx insn) { /* There's no CC0 change when clearing a register or memory. Just check for overlap. */ - if ((cc_status.value1 - && cris_reg_overlap_mentioned_p (SET_DEST (exp), - cc_status.value1))) + if (cc_status.value1 + && modified_in_p (cc_status.value1, insn)) cc_status.value1 = 0; - if ((cc_status.value2 - && cris_reg_overlap_mentioned_p (SET_DEST (exp), - cc_status.value2))) + if (cc_status.value2 + && modified_in_p (cc_status.value2, insn)) cc_status.value2 = 0; return; @@ -2009,14 +2005,12 @@ cris_notice_update_cc (rtx exp, rtx insn) { /* When SET to MEM, then CC is not changed (except for overlap). */ - if ((cc_status.value1 - && cris_reg_overlap_mentioned_p (SET_DEST (exp), - cc_status.value1))) + if (cc_status.value1 + && modified_in_p (cc_status.value1, insn)) cc_status.value1 = 0; - if ((cc_status.value2 - && cris_reg_overlap_mentioned_p (SET_DEST (exp), - cc_status.value2))) + if (cc_status.value2 + && modified_in_p (cc_status.value2, insn)) cc_status.value2 = 0; return; @@ -2053,31 +2047,11 @@ cris_notice_update_cc (rtx exp, rtx insn) /* For "move.S rz,[rx=ry+o]" and "clear.S [rx=ry+o]", say flags are not changed, except for overlap. */ if (cc_status.value1 - && cris_reg_overlap_mentioned_p (XEXP - (XVECEXP - (exp, 0, 0), 0), - cc_status.value1)) - cc_status.value1 = 0; - - if (cc_status.value1 - && cris_reg_overlap_mentioned_p (XEXP - (XVECEXP - (exp, 0, 1), 0), - cc_status.value1)) + && modified_in_p (cc_status.value1, insn)) cc_status.value1 = 0; if (cc_status.value2 - && cris_reg_overlap_mentioned_p (XEXP - (XVECEXP - (exp, 0, 0), 0), - cc_status.value2)) - cc_status.value2 = 0; - - if (cc_status.value2 - && cris_reg_overlap_mentioned_p (XEXP - (XVECEXP - (exp, 0, 1), 0), - cc_status.value2)) + && modified_in_p (cc_status.value2, insn)) cc_status.value2 = 0; return; |