diff options
Diffstat (limited to 'gcc/doc')
| -rw-r--r-- | gcc/doc/invoke.texi | 115 |
1 files changed, 114 insertions, 1 deletions
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index f037f4b..5338419 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -549,7 +549,13 @@ Objective-C and Objective-C++ Dialects}. -minline-sqrt-min-latency -minline-sqrt-max-throughput @gol -mno-dwarf2-asm -mearly-stop-bits @gol -mfixed-range=@var{register-range} -mtls-size=@var{tls-size} @gol --mtune=@var{cpu-type} -mt -pthread -milp32 -mlp64} +-mtune=@var{cpu-type} -mt -pthread -milp32 -mlp64 @gol +-mno-sched-br-data-spec -msched-ar-data-spec -mno-sched-control-spec @gol +-msched-br-in-data-spec -msched-ar-in-data-spec -msched-in-control-spec @gol +-msched-ldc -mno-sched-control-ldc -mno-sched-spec-verbose @gol +-mno-sched-prefer-non-data-spec-insns @gol +-mno-sched-prefer-non-control-spec-insns @gol +-mno-sched-count-spec-in-critical-path} @emph{M32R/D Options} @gccoptlist{-m32r2 -m32rx -m32r @gol @@ -9734,6 +9740,113 @@ The 32-bit environment sets int, long and pointer to 32 bits. The 64-bit environment sets int to 32 bits and long and pointer to 64 bits. These are HP-UX specific flags. +@item -mno-sched-br-data-spec +@itemx -msched-br-data-spec +@opindex -mno-sched-br-data-spec +@opindex -msched-br-data-spec +(Dis/En)able data speculative scheduling before reload. +This will result in generation of the ld.a instructions and +the corresponding check instructions (ld.c / chk.a). +The default is 'disable'. + +@item -msched-ar-data-spec +@itemx -mno-sched-ar-data-spec +@opindex -msched-ar-data-spec +@opindex -mno-sched-ar-data-spec +(En/Dis)able data speculative scheduling after reload. +This will result in generation of the ld.a instructions and +the corresponding check instructions (ld.c / chk.a). +The default is 'enable'. + +@item -mno-sched-control-spec +@itemx -msched-control-spec +@opindex -mno-sched-control-spec +@opindex -msched-control-spec +(Dis/En)able control speculative scheduling. This feature is +available only during region scheduling (i.e. before reload). +This will result in generation of the ld.s instructions and +the corresponding check instructions chk.s . +The default is 'disable'. + +@item -msched-br-in-data-spec +@itemx -mno-sched-br-in-data-spec +@opindex -msched-br-in-data-spec +@opindex -mno-sched-br-in-data-spec +(En/Dis)able speculative scheduling of the instructions that +are dependent on the data speculative loads before reload. +This is effective only with @option{-msched-br-data-spec} enabled. +The default is 'enable'. + +@item -msched-ar-in-data-spec +@itemx -mno-sched-ar-in-data-spec +@opindex -msched-ar-in-data-spec +@opindex -mno-sched-ar-in-data-spec +(En/Dis)able speculative scheduling of the instructions that +are dependent on the data speculative loads after reload. +This is effective only with @option{-msched-ar-data-spec} enabled. +The default is 'enable'. + +@item -msched-in-control-spec +@itemx -mno-sched-in-control-spec +@opindex -msched-in-control-spec +@opindex -mno-sched-in-control-spec +(En/Dis)able speculative scheduling of the instructions that +are dependent on the control speculative loads. +This is effective only with @option{-msched-control-spec} enabled. +The default is 'enable'. + +@item -msched-ldc +@itemx -mno-sched-ldc +@opindex -msched-ldc +@opindex -mno-sched-ldc +(En/Dis)able use of simple data speculation checks ld.c . +If disabled, only chk.a instructions will be emitted to check +data speculative loads. +The default is 'enable'. + +@item -mno-sched-control-ldc +@itemx -msched-control-ldc +@opindex -mno-sched-control-ldc +@opindex -msched-control-ldc +(Dis/En)able use of ld.c instructions to check control speculative loads. +If enabled, in case of control speculative load with no speculatively +scheduled dependent instructions this load will be emitted as ld.sa and +ld.c will be used to check it. +The default is 'disable'. + +@item -mno-sched-spec-verbose +@itemx -msched-spec-verbose +@opindex -mno-sched-spec-verbose +@opindex -msched-spec-verbose +(Dis/En)able printing of the information about speculative motions. + +@item -mno-sched-prefer-non-data-spec-insns +@itemx -msched-prefer-non-data-spec-insns +@opindex -mno-sched-prefer-non-data-spec-insns +@opindex -msched-prefer-non-data-spec-insns +If enabled, data speculative instructions will be choosen for schedule +only if there are no other choices at the moment. This will make +the use of the data speculation much more conservative. +The default is 'disable'. + +@item -mno-sched-prefer-non-control-spec-insns +@itemx -msched-prefer-non-control-spec-insns +@opindex -mno-sched-prefer-non-control-spec-insns +@opindex -msched-prefer-non-control-spec-insns +If enabled, control speculative instructions will be choosen for schedule +only if there are no other choices at the moment. This will make +the use of the control speculation much more conservative. +The default is 'disable'. + +@item -mno-sched-count-spec-in-critical-path +@itemx -msched-count-spec-in-critical-path +@opindex -mno-sched-count-spec-in-critical-path +@opindex -msched-count-spec-in-critical-path +If enabled, speculative depedencies will be considered during +computation of the instructions priorities. This will make the use of the +speculation a bit more conservative. +The default is 'disable'. + @end table @node M32C Options |