diff options
Diffstat (limited to '4.7.0/gentoo/40_all_superh-mieee-default-fix-pr33135.patch')
| -rw-r--r-- | 4.7.0/gentoo/40_all_superh-mieee-default-fix-pr33135.patch | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/4.7.0/gentoo/40_all_superh-mieee-default-fix-pr33135.patch b/4.7.0/gentoo/40_all_superh-mieee-default-fix-pr33135.patch new file mode 100644 index 0000000..36d2e76 --- /dev/null +++ b/4.7.0/gentoo/40_all_superh-mieee-default-fix-pr33135.patch @@ -0,0 +1,105 @@ +https://bugs.gentoo.org/439988 +http://gcc.gnu.org/PR33135 + +From 16877e7c80bd921fdff0e32e6d4887731985a58a Mon Sep 17 00:00:00 2001 +From: olegendo <olegendo@138bc75d-0d04-0410-961f-82ee72b054a4> +Date: Sun, 22 Jul 2012 23:44:45 +0000 +Subject: [PATCH] PR target/33135 * config/sh/sh.opt (mieee): + Use Var instead of Mask. Correct description. * + config/sh/sh.c (sh_option_override): Do not change + flag_finite_math_only. Set TARGET_IEEE to complement of + flag_finite_math_only. * doc/invoke.texi (SH + options): Add mno-ieee. Correct description of mieee + and mno-ieee behavior. + +git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-4_7-branch@189761 138bc75d-0d04-0410-961f-82ee72b054a4 +--- + gcc/ChangeLog | 11 +++++++++++ + gcc/config/sh/sh.c | 10 +++++----- + gcc/config/sh/sh.opt | 4 ++-- + gcc/doc/invoke.texi | 18 ++++++++++-------- + 4 files changed, 28 insertions(+), 15 deletions(-) + +diff --git a/gcc/config/sh/sh.c b/gcc/config/sh/sh.c +index 9d0ede3..f828ed4 100644 +--- a/gcc/config/sh/sh.c ++++ b/gcc/config/sh/sh.c +@@ -592,11 +592,6 @@ sh_option_override (void) + SUBTARGET_OVERRIDE_OPTIONS; + if (optimize > 1 && !optimize_size) + target_flags |= MASK_SAVE_ALL_TARGET_REGS; +- if (flag_finite_math_only == 2) +- flag_finite_math_only +- = !flag_signaling_nans && TARGET_SH2E && ! TARGET_IEEE; +- if (TARGET_SH2E && !flag_finite_math_only) +- target_flags |= MASK_IEEE; + sh_cpu = PROCESSOR_SH1; + assembler_dialect = 0; + if (TARGET_SH2) +@@ -843,6 +838,11 @@ sh_option_override (void) + align_functions = min_align; + } + ++ /* If the -mieee option was not explicitly set by the user, turn it on ++ unless -ffinite-math-only was specified. See also PR 33135. */ ++ if (! global_options_set.x_TARGET_IEEE) ++ TARGET_IEEE = ! flag_finite_math_only; ++ + if (sh_fixed_range_str) + sh_fix_range (sh_fixed_range_str); + +diff --git a/gcc/config/sh/sh.opt b/gcc/config/sh/sh.opt +index 13771eb..bf3f64d 100644 +--- a/gcc/config/sh/sh.opt ++++ b/gcc/config/sh/sh.opt +@@ -270,8 +270,8 @@ Target Report RejectNegative Mask(HITACHI) + Follow Renesas (formerly Hitachi) / SuperH calling conventions + + mieee +-Target Report Mask(IEEE) +-Increase the IEEE compliance for floating-point code ++Target Var(TARGET_IEEE) ++Increase the IEEE compliance for floating-point comparisons + + mindexed-addressing + Target Report Mask(ALLOW_INDEXED_ADDRESS) Condition(SUPPORT_ANY_SH5_32MEDIA) +diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi +index a513e01..aa8a0d3 100644 +--- a/gcc/doc/invoke.texi ++++ b/gcc/doc/invoke.texi +@@ -883,8 +883,8 @@ See RS/6000 and PowerPC Options. + -m5-compact -m5-compact-nofpu @gol + -mb -ml -mdalign -mrelax @gol + -mbigtable -mfmovd -mhitachi -mrenesas -mno-renesas -mnomacsave @gol +--mieee -mbitops -misize -minline-ic_invalidate -mpadstruct -mspace @gol +--mprefergot -musermode -multcost=@var{number} -mdiv=@var{strategy} @gol ++-mieee -mno-ieee -mbitops -misize -minline-ic_invalidate -mpadstruct @gol ++-mspace -mprefergot -musermode -multcost=@var{number} -mdiv=@var{strategy} @gol + -mdivsi3_libfunc=@var{name} -mfixed-range=@var{register-range} @gol + -madjust-unroll -mindexed-addressing -mgettrcost=@var{number} -mpt-fixed @gol + -maccumulate-outgoing-args -minvalid-symbols -msoft-atomic @gol +@@ -17970,13 +17970,15 @@ Mark the @code{MAC} register as call-clobbered, even if + @option{-mhitachi} is given. + + @item -mieee ++@item -mno-ieee + @opindex mieee +-Increase IEEE compliance of floating-point code. +-At the moment, this is equivalent to @option{-fno-finite-math-only}. +-When generating 16-bit SH opcodes, getting IEEE-conforming results for +-comparisons of NANs / infinities incurs extra overhead in every +-floating-point comparison, therefore the default is set to +-@option{-ffinite-math-only}. ++@opindex mnoieee ++Control the IEEE compliance of floating-point comparisons, which affects the ++handling of cases where the result of a comparison is unordered. By default ++@option{-mieee} is implicitly enabled. If @option{-ffinite-math-only} is ++enabled @option{-mno-ieee} is implicitly set, which results in faster ++floating-point greater-equal and less-equal comparisons. The implcit settings ++can be overridden by specifying either @option{-mieee} or @option{-mno-ieee}. + + @item -minline-ic_invalidate + @opindex minline-ic_invalidate +-- +1.7.12.4 + |