2 Commits

Author	SHA1	Message	Date
dfukalov	33e2f69a24	[AMDGPU][LoopUnroll] Increase BB size to analyze for complete unroll. ... The `UnrollMaxBlockToAnalyze` parameter is used at the stage when we have no information about a loop body BB cost. In some cases, e.g. for simple loop ``` for(int i=0; i<32; ++i){ D = Arr2[i*8 + C1]; Arr1[i*64 + C2] += C3 * D; Arr1[i*64 + C2 + 2048] += C4 * D; } ``` current default parameter value is not enough to run deeper cost analyze so the loop is not completely unrolled. Reviewed By: rampitec Differential Revision: https://reviews.llvm.org/D86248	2020-08-20 10:41:47 +03:00
dfukalov	c94d32a6b3	[AMDGPU] Increase max iterations count to analyze complete unroll ... Summary: In some cases inner loops may not get boosts so try to analyze them deeper. Reviewers: rampitec, mzolotukhin Reviewed By: rampitec Subscribers: arsenm, kzhuravl, jvesely, wdng, nhaehnle, yaxunl, dstuttard, tpr, t-tye, hiraditya, zzheng, kerbowa, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D81204	2020-06-06 16:32:45 +03:00