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Introduce helper function to build isl_flow, NFC. 

llvm-svn: 261436
This commit is contained in:
Hongbin Zheng 2016-02-20 14:45:48 +00:00
parent 403853f20b
commit ff4b63739e
1 changed files with 22 additions and 24 deletions
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46
polly/lib/Analysis/DependenceInfo.cpp
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@ -254,6 +254,20 @@ addZeroPaddingToSchedule(__isl_take isl_union_map *Schedule) {
return Schedule;
}
static __isl_give isl_union_flow *buildFlow(__isl_keep isl_union_map *Snk,
__isl_keep isl_union_map *Src,
__isl_keep isl_union_map *MaySrc,
__isl_keep isl_schedule *Schedule) {
isl_union_access_info *AI;
AI = isl_union_access_info_from_sink(isl_union_map_copy(Snk));
AI = isl_union_access_info_set_may_source(AI, isl_union_map_copy(MaySrc));
if (Src)
AI = isl_union_access_info_set_must_source(AI, isl_union_map_copy(Src));
AI = isl_union_access_info_set_schedule(AI, isl_schedule_copy(Schedule));
return isl_union_access_info_compute_flow(AI);
}
void Dependences::calculateDependences(Scop &S) {
isl_union_map *Read, *Write, *MayWrite, *AccessSchedule, *StmtSchedule;
isl_schedule *Schedule;
@ -295,23 +309,14 @@ void Dependences::calculateDependences(Scop &S) {
RAW = WAW = WAR = RED = nullptr;
if (OptAnalysisType == VALUE_BASED_ANALYSIS) {
isl_union_access_info *AI;
isl_union_flow *Flow;
AI = isl_union_access_info_from_sink(isl_union_map_copy(Read));
AI = isl_union_access_info_set_must_source(AI, isl_union_map_copy(Write));
AI = isl_union_access_info_set_may_source(AI, isl_union_map_copy(MayWrite));
AI = isl_union_access_info_set_schedule(AI, isl_schedule_copy(Schedule));
Flow = isl_union_access_info_compute_flow(AI);
Flow = buildFlow(Read, Write, MayWrite, Schedule);
RAW = isl_union_flow_get_must_dependence(Flow);
isl_union_flow_free(Flow);
AI = isl_union_access_info_from_sink(isl_union_map_copy(Write));
AI = isl_union_access_info_set_must_source(AI, isl_union_map_copy(Write));
AI = isl_union_access_info_set_may_source(AI, isl_union_map_copy(Read));
AI = isl_union_access_info_set_schedule(AI, Schedule);
Flow = isl_union_access_info_compute_flow(AI);
Flow = buildFlow(Write, Write, Read, Schedule);
WAW = isl_union_flow_get_must_dependence(Flow);
WAR = isl_union_flow_get_may_dependence(Flow);
@ -322,36 +327,29 @@ void Dependences::calculateDependences(Scop &S) {
// WAR, refactoring Polly to only track general non-flow dependences may
// improve performance.
WAR = isl_union_map_subtract(WAR, isl_union_map_copy(WAW));
isl_union_flow_free(Flow);
isl_schedule_free(Schedule);
} else {
isl_union_access_info *AI;
isl_union_flow *Flow;
Write = isl_union_map_union(Write, isl_union_map_copy(MayWrite));
AI = isl_union_access_info_from_sink(isl_union_map_copy(Read));
AI = isl_union_access_info_set_may_source(AI, isl_union_map_copy(Write));
AI = isl_union_access_info_set_schedule(AI, isl_schedule_copy(Schedule));
Flow = isl_union_access_info_compute_flow(AI);
Flow = buildFlow(Read, nullptr, Write, Schedule);
RAW = isl_union_flow_get_may_dependence(Flow);
isl_union_flow_free(Flow);
AI = isl_union_access_info_from_sink(isl_union_map_copy(Write));
AI = isl_union_access_info_set_may_source(AI, isl_union_map_copy(Read));
AI = isl_union_access_info_set_schedule(AI, isl_schedule_copy(Schedule));
Flow = isl_union_access_info_compute_flow(AI);
Flow = buildFlow(Write, nullptr, Read, Schedule);
WAR = isl_union_flow_get_may_dependence(Flow);
isl_union_flow_free(Flow);
AI = isl_union_access_info_from_sink(isl_union_map_copy(Write));
AI = isl_union_access_info_set_may_source(AI, isl_union_map_copy(Write));
AI = isl_union_access_info_set_schedule(AI, Schedule);
Flow = isl_union_access_info_compute_flow(AI);
Flow = buildFlow(Write, nullptr, Write, Schedule);
WAW = isl_union_flow_get_may_dependence(Flow);
isl_union_flow_free(Flow);
isl_schedule_free(Schedule);
}
isl_union_map_free(MayWrite);