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| author | pfg <pfg@FreeBSD.org> | 2013-12-31 20:15:21 +0000 |
|---|---|---|
| committer | pfg <pfg@FreeBSD.org> | 2013-12-31 20:15:21 +0000 |
| commit | f881b459a3fe369b609e6a178021b210add26f5c (patch) | |
| tree | ba6b6de6309eae50fbdda36926f761281e13ff15 /contrib/gcc/config | |
| parent | 4adac037c326c987b31153809fdf6a8d96fc0d22 (diff) | |
| download | FreeBSD-src-f881b459a3fe369b609e6a178021b210add26f5c.zip FreeBSD-src-f881b459a3fe369b609e6a178021b210add26f5c.tar.gz | |
MFC r259525, r259526, r259529
gcc: small merges from upstream
fix ICE in rs6000 when using -fno-trapping-math.
Solves GCC-PR target/30485
Solve GCC issues:
PR middle-end/32602
PR middle-end/32603
Updates the to documentation and processing improvement.
Obtained from: gcc 4.3 (rev. 120902, 120902, 119427, 126278, 126422;
GPLv2)
Diffstat (limited to 'contrib/gcc/config')
| -rw-r--r-- | contrib/gcc/config/rs6000/rs6000.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/contrib/gcc/config/rs6000/rs6000.c b/contrib/gcc/config/rs6000/rs6000.c index 287902f..7878ed1 100644 --- a/contrib/gcc/config/rs6000/rs6000.c +++ b/contrib/gcc/config/rs6000/rs6000.c @@ -11738,11 +11738,20 @@ rs6000_emit_vector_compare (enum rtx_code rcode, try_again = true; break; case NE: - /* Treat A != B as ~(A==B). */ + case UNLE: + case UNLT: + case UNGE: + case UNGT: + /* Invert condition and try again. + e.g., A != B becomes ~(A==B). */ { + enum rtx_code rev_code; enum insn_code nor_code; - rtx eq_rtx = rs6000_emit_vector_compare (EQ, op0, op1, - dest_mode); + rtx eq_rtx; + + rev_code = reverse_condition_maybe_unordered (rcode); + eq_rtx = rs6000_emit_vector_compare (rev_code, op0, op1, + dest_mode); nor_code = one_cmpl_optab->handlers[(int)dest_mode].insn_code; gcc_assert (nor_code != CODE_FOR_nothing); |
