If -m<option>/-mno-<option> were printed when displaying help then it
would be appropriate to show "Use/do not use" and similar, but we
don't see any mention of -mno-<option>: The help info is printed
against -m<option> so IMO it should say what -m<option> does.
* config/rs6000/rs6000.opt: Remove negatives from help strings
and comments.
diff --git a/gcc/config/rs6000/rs6000.opt b/gcc/config/rs6000/rs6000.opt
index a6db8bb..9e9d33e 100644
--- a/gcc/config/rs6000/rs6000.opt
+++ b/gcc/config/rs6000/rs6000.opt
@@ -209,27 +209,27 @@ Target Undocumented Report Var(TARGET_VSX_ALIGN_128) Save
mallow-movmisalign
Target Undocumented Var(TARGET_ALLOW_MOVMISALIGN) Init(-1) Save
-; Allow/disallow the movmisalign in DF/DI vectors
+; Allow the movmisalign in DF/DI vectors
mefficient-unaligned-vector
Target Undocumented Report Mask(EFFICIENT_UNALIGNED_VSX) Var(rs6000_isa_flags)
-; Consider unaligned VSX accesses to be efficient/inefficient
+; Consider unaligned VSX accesses to be efficient
mallow-df-permute
Target Undocumented Var(TARGET_ALLOW_DF_PERMUTE) Save
-; Allow/disallow permutation of DF/DI vectors
+; Allow permutation of DF/DI vectors
msched-groups
Target Undocumented Report Var(TARGET_SCHED_GROUPS) Init(-1) Save
-; Explicitly set/unset whether rs6000_sched_groups is set
+; Explicitly set rs6000_sched_groups
malways-hint
Target Undocumented Report Var(TARGET_ALWAYS_HINT) Init(-1) Save
-; Explicitly set/unset whether rs6000_always_hint is set
+; Explicitly set rs6000_always_hint
malign-branch-targets
Target Undocumented Report Var(TARGET_ALIGN_BRANCH_TARGETS) Init(-1) Save
-; Explicitly set/unset whether rs6000_align_branch_targets is set
+; Explicitly set rs6000_align_branch_targets
mvectorize-builtins
Target Undocumented Report Var(TARGET_VECTORIZE_BUILTINS) Init(-1) Save
@@ -539,11 +539,11 @@ Specify Xilinx FPU.
mpointers-to-nested-functions
Target Report Var(TARGET_POINTERS_TO_NESTED_FUNCTIONS) Init(1) Save
-Use/do not use r11 to hold the static link in calls to functions via pointers.
+Use r11 to hold the static link in calls to functions via pointers.
msave-toc-indirect
Target Report Mask(SAVE_TOC_INDIRECT) Var(rs6000_isa_flags)
-Control whether we save the TOC in the prologue for indirect calls or generate
the save inline.
+Save the TOC in the prologue for indirect calls rather than inline.
mvsx-timode
Target Undocumented Mask(VSX_TIMODE) Var(rs6000_isa_flags)
@@ -559,7 +559,7 @@ Allow sign extension in fusion operations.
mpower8-vector
Target Report Mask(P8_VECTOR) Var(rs6000_isa_flags)
-Use/do not use vector and scalar instructions added in ISA 2.07.
+Use vector and scalar instructions added in ISA 2.07.
mcrypto
Target Report Mask(CRYPTO) Var(rs6000_isa_flags)
@@ -611,27 +611,27 @@ Fuse certain operations together for better performance
on power9.
mpower9-misc
Target Undocumented Report Mask(P9_MISC) Var(rs6000_isa_flags)
-Use/do not use certain scalar instructions added in ISA 3.0.
+Use certain scalar instructions added in ISA 3.0.
mpower9-vector
Target Undocumented Report Mask(P9_VECTOR) Var(rs6000_isa_flags)
-Use/do not use vector instructions added in ISA 3.0.
+Use vector instructions added in ISA 3.0.
mpower9-dform-scalar
Target Undocumented Mask(P9_DFORM_SCALAR) Var(rs6000_isa_flags)
-Use/do not use scalar register+offset memory instructions added in ISA 3.0.
+Use scalar register+offset memory instructions added in ISA 3.0.
mpower9-dform-vector
Target Undocumented Mask(P9_DFORM_VECTOR) Var(rs6000_isa_flags)
-Use/do not use vector register+offset memory instructions added in ISA 3.0.
+Use vector register+offset memory instructions added in ISA 3.0.
mpower9-dform
Target Undocumented Report Var(TARGET_P9_DFORM_BOTH) Init(-1) Save
-Use/do not use register+offset memory instructions added in ISA 3.0.
+Use register+offset memory instructions added in ISA 3.0.
mpower9-minmax
Target Undocumented Mask(P9_MINMAX) Var(rs6000_isa_flags)
-Use/do not use the new min/max instructions defined in ISA 3.0.
+Use the new min/max instructions defined in ISA 3.0.
mtoc-fusion
Target Undocumented Mask(TOC_FUSION) Var(rs6000_isa_flags)
@@ -643,12 +643,12 @@ Generate the integer modulo instructions.
mfloat128
Target Report Mask(FLOAT128) Var(rs6000_isa_flags)
-Enable/disable IEEE 128-bit floating point via the __float128 keyword.
+Enable IEEE 128-bit floating point via the __float128 keyword.
mfloat128-hardware
Target Report Mask(FLOAT128_HW) Var(rs6000_isa_flags)
-Enable/disable using IEEE 128-bit floating point instructions.
+Enable using IEEE 128-bit floating point instructions.
mfloat128-convert
Target Undocumented Mask(FLOAT128_CVT) Var(rs6000_isa_flags)
-Enable/disable default conversions between __float128 & long double.
+Enable default conversions between __float128 & long double.
--
Alan Modra
Australia Development Lab, IBM
