target::tasks Namespace Reference

Functions
std::unique_ptr< Target >	target (nullptr)
	Global target pointer.
void	target_mips ()
	Select MIPS target.
void	target_ia32 ()
	Select IA-32 target.
void	target_display ()
	Describe the current target.
void	inst_compute ()
	Perform the instruction selection.
void	runtime_display ()
void	inst_display ()
	Display the result of the instruction selection.
void	nolimips_display ()
	Display the result of instruction selection with frame allocation.
	TASK_GROUP ("7. Target selection")
	TASK_DECLARE ("i|inst-compute","select the instructions", inst_compute,"lir-compute targeted")
	Perform the instruction selection.
	TASK_DECLARE ("R|runtime-display","display the runtime", runtime_display,"targeted")
	Display the runtime.
	BOOLEAN_TASK_DECLARE ("inst-debug","enable instructions verbose display", inst_debug_p,"")
	Report def, use and jump lists.
	BOOLEAN_TASK_DECLARE ("rule-trace","enable rule reducing display", rule_trace_p,"")
	Report rule reducing.
	BOOLEAN_TASK_DECLARE ("garbage-collection","enable garbage collection", gc_p,"")
	Enable support for the Boehm-Demers-Weiser garbage collector.
	TASK_DECLARE ("I|inst-display","display the instructions", inst_display,"inst-compute")
	Display the result of the instruction selection.
	TASK_DECLARE ("Y|nolimips-display","display Nolimips compatible instructions (i.e., allocate ""the frames and then display the instructions", nolimips_display,"inst-compute")
	Display the result of the instruction selection.
	DISJUNCTIVE_TASK_DECLARE ("targeted","default the target to MIPS","target-mips target-ia32")
	Make sure the target is defined.
	TASK_DECLARE ("target-mips","select MIPS as target", target_mips,"")
	Select MIPS target.
	TASK_DECLARE ("target-ia32","select IA-32 as target", target_ia32,"")
	Select IA-32 target.
	TASK_DECLARE ("target-display","display the current target", target_display,"targeted")
	Describe the current target.
	INT_TASK_DECLARE ("callee-save", 0, 99,"max number of callee save registers", limits.callee_save_max,"")
	The maximum number of callee save registers.
	INT_TASK_DECLARE ("caller-save", 0, 99,"max number of caller save registers", limits.caller_save_max,"")
	The maximum number of callee save registers.
	INT_TASK_DECLARE ("argument", 0, 99,"max number of argument registers", limits.argument_max,"")
	The maximum number of callee save registers.

Variables
CpuLimits	limits
	A set of restrictions over the cpu.
std::unique_ptr< assem::Fragments >	fragments
	Global assembly fragment list.
std::unique_ptr< Target >	target
	Global target pointer (default is MIPS).

Function Documentation

target::tasks::BOOLEAN_TASK_DECLARE	(	"inst-debug"	,
		"enable instructions verbose display"	,
		inst_debug_p	,
		""
	)

Report def, use and jump lists.

target::tasks::BOOLEAN_TASK_DECLARE	(	"rule-trace"	,
		"enable rule reducing display"	,
		rule_trace_p	,
		""
	)

Report rule reducing.

target::tasks::BOOLEAN_TASK_DECLARE	(	"garbage-collection"	,
		"enable garbage collection"	,
		gc_p	,
		""
	)

Enable support for the Boehm-Demers-Weiser garbage collector.

target::tasks::DISJUNCTIVE_TASK_DECLARE	(	"targeted"	,
		"default the target to MIPS"	,
		"target-mips target-ia32"
	)

Make sure the target is defined.

void target::tasks::inst_compute

(

)

Perform the instruction selection.

References translate::tasks::fragments, fragments, target::lir_to_assem(), and target.

void target::tasks::inst_display

(

)

Display the result of the instruction selection.

References fragments, target::instructions_dump(), precondition, target, and temp::tasks::tempmap.

Referenced by nolimips_display().

target::tasks::INT_TASK_DECLARE	(	"callee-save"	,
		0	,
		99	,
		"max number of callee save registers"	,
		limits.	callee_save_max,
		""
	)

The maximum number of callee save registers.

target::tasks::INT_TASK_DECLARE	(	"caller-save"	,
		0	,
		99	,
		"max number of caller save registers"	,
		limits.	caller_save_max,
		""
	)

The maximum number of callee save registers.

target::tasks::INT_TASK_DECLARE	(	"argument"	,
		0	,
		99	,
		"max number of argument registers"	,
		limits.	argument_max,
		""
	)

The maximum number of callee save registers.

void target::tasks::nolimips_display

(

)

Display the result of instruction selection with frame allocation.

References fragments, target::frame_allocate(), inst_display(), precondition, and target.

void target::tasks::runtime_display

(

)

References target::runtime_dump(), and target.

std::unique_ptr<Target> target::tasks::target

(

nullptr

)

Global target pointer.

Pointer initialization is done in either target_mips or target_ia32, using target_set. One could want to set target in its construction, e.g., using target_set:

std::unique_ptr<Target> target (target_set (...));

but this would be dead wrong: target_set sets up several globals, such as temp::tasks::tempmap, that might not be instantiated yet! As a matter of fact, this is what happens on Mac OS X, where G++ chose another order to perform its static initialization. Since the standard does say we should never depend on such an order, the easiest is to have a task perform the default assignment.

In the long run, several of these globals should be removed. For instance, the temp::tasks::tempmap should probably be instantiated by the Target: therefore the dependencies issue will be magically resolved.

void target::tasks::target_display

(

)

Describe the current target.

References target.

void target::tasks::target_ia32

(

)

Select IA-32 target.

void target::tasks::target_mips

(

)

Select MIPS target.

References limits.

target::tasks::TASK_DECLARE	(	"i|inst-compute"	,
		"select the instructions"	,
		inst_compute	,
		"lir-compute targeted"
	)

Perform the instruction selection.

target::tasks::TASK_DECLARE	(	"R|runtime-display"	,
		"display the runtime"	,
		runtime_display	,
		"targeted"
	)

Display the runtime.

target::tasks::TASK_DECLARE	(	"I|inst-display"	,
		"display the instructions"	,
		inst_display	,
		"inst-compute"
	)

Display the result of the instruction selection.

target::tasks::TASK_DECLARE

(

"Y|nolimips-display"

)

Display the result of the instruction selection.

target::tasks::TASK_DECLARE	(	"target-mips"	,
		"select MIPS as target"	,
		target_mips	,
		""
	)

Select MIPS target.

target::tasks::TASK_DECLARE	(	"target-ia32"	,
		"select IA-32 as target"	,
		target_ia32	,
		""
	)

Select IA-32 target.

target::tasks::TASK_DECLARE	(	"target-display"	,
		"display the current target"	,
		target_display	,
		"targeted"
	)

Describe the current target.

target::tasks::TASK_GROUP

(

"7. Target selection"

)

Variable Documentation

std::unique_ptr< assem::Fragments > target::tasks::fragments

Global assembly fragment list.

Referenced by regalloc::tasks::asm_compute(), canon::tasks::canon_display(), tree::dump(), liveness::tasks::flowgraph_dump(), inst_compute(), inst_display(), liveness::tasks::interference_dump(), canon::tasks::lir_display(), liveness::tasks::liveness_dump(), and nolimips_display().

CpuLimits target::tasks::limits

A set of restrictions over the cpu.

Referenced by target_mips().

std::unique_ptr<Target> target::tasks::target

Global target pointer (default is MIPS).

Referenced by regalloc::tasks::asm_compute(), inst_compute(), inst_display(), nolimips_display(), misc::graph< Orientation, VertexLabel, EdgeLabel >::print(), runtime_display(), and target_display().