diff options
| -rw-r--r-- | lib/Target/PowerPC/PPC.td | 4 | ||||
| -rw-r--r-- | lib/Target/PowerPC/PPCScheduleA2.td | 15 |
2 files changed, 17 insertions, 2 deletions
diff --git a/lib/Target/PowerPC/PPC.td b/lib/Target/PowerPC/PPC.td index d6a3ceb18f..82a69b4769 100644 --- a/lib/Target/PowerPC/PPC.td +++ b/lib/Target/PowerPC/PPC.td @@ -155,7 +155,7 @@ def : ProcessorModel<"e500mc", PPCE500mcModel, def : ProcessorModel<"e5500", PPCE5500Model, [DirectiveE5500, FeatureMFOCRF, Feature64Bit, FeatureSTFIWX, FeatureBookE, FeatureISEL]>; -def : Processor<"a2", PPCA2Itineraries, +def : ProcessorModel<"a2", PPCA2Model, [DirectiveA2, FeatureBookE, FeatureMFOCRF, FeatureFSqrt, FeatureFRE, FeatureFRES, FeatureFRSQRTE, FeatureFRSQRTES, FeatureRecipPrec, @@ -163,7 +163,7 @@ def : Processor<"a2", PPCA2Itineraries, FeatureFPRND, FeatureFPCVT, FeatureISEL, FeaturePOPCNTD, FeatureLDBRX, Feature64Bit /*, Feature64BitRegs */]>; -def : Processor<"a2q", PPCA2Itineraries, +def : ProcessorModel<"a2q", PPCA2Model, [DirectiveA2, FeatureBookE, FeatureMFOCRF, FeatureFSqrt, FeatureFRE, FeatureFRES, FeatureFRSQRTE, FeatureFRSQRTES, FeatureRecipPrec, diff --git a/lib/Target/PowerPC/PPCScheduleA2.td b/lib/Target/PowerPC/PPCScheduleA2.td index ba63b5cd8f..ae084aa0e8 100644 --- a/lib/Target/PowerPC/PPCScheduleA2.td +++ b/lib/Target/PowerPC/PPCScheduleA2.td @@ -749,3 +749,18 @@ def PPCA2Itineraries : ProcessorItineraries< [15, 7], [FPR_Bypass, FPR_Bypass]> ]>; + +// ===---------------------------------------------------------------------===// +// A2 machine model for scheduling and other instruction cost heuristics. + +def PPCA2Model : SchedMachineModel { + let IssueWidth = 1; // 2 micro-ops are dispatched per cycle. + let MinLatency = -1; // OperandCycles are interpreted as MinLatency. + let LoadLatency = 6; // Optimistic load latency assuming bypass. + // This is overriden by OperandCycles if the + // Itineraries are queried instead. + let MispredictPenalty = 6; + + let Itineraries = PPCA2Itineraries; +} + |