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| author | Yaxun (Sam) Liu <yaxun.liu@amd.com> | 2022-09-17 17:57:35 -0400 |
|---|---|---|
| committer | Yaxun (Sam) Liu <yaxun.liu@amd.com> | 2022-10-24 15:43:53 -0400 |
| commit | bd7949bcd86633bd4203b2ba6f891aea00fce4d1 (patch) | |
| tree | 4137ed5f8c409d4afd02d3621a76e2ceae95b17a /llvm/lib/Transforms/Utils/LoopSimplify.cpp | |
| parent | 3637dc601c4923721a69426187aa69dd6a71a053 (diff) | |
| download | llvm-bd7949bcd86633bd4203b2ba6f891aea00fce4d1.zip llvm-bd7949bcd86633bd4203b2ba6f891aea00fce4d1.tar.gz llvm-bd7949bcd86633bd4203b2ba6f891aea00fce4d1.tar.bz2 | |
reland e5581df60a35 [SimplifyCFG] accumulate bonus insts cost
Fixed compile time increase due to always constructing LocalCostTracker.
Now only construct LocalCostTracker when needed.
Diffstat (limited to 'llvm/lib/Transforms/Utils/LoopSimplify.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Utils/LoopSimplify.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/llvm/lib/Transforms/Utils/LoopSimplify.cpp b/llvm/lib/Transforms/Utils/LoopSimplify.cpp index 8943b4b..13f1080 100644 --- a/llvm/lib/Transforms/Utils/LoopSimplify.cpp +++ b/llvm/lib/Transforms/Utils/LoopSimplify.cpp @@ -480,6 +480,7 @@ static bool simplifyOneLoop(Loop *L, SmallVectorImpl<Loop *> &Worklist, DominatorTree *DT, LoopInfo *LI, ScalarEvolution *SE, AssumptionCache *AC, MemorySSAUpdater *MSSAU, bool PreserveLCSSA) { + SimplifyCFGCostTracker CostTracker; bool Changed = false; if (MSSAU && VerifyMemorySSA) MSSAU->getMemorySSA()->verifyMemorySSA(); @@ -661,7 +662,7 @@ ReprocessLoop: // The block has now been cleared of all instructions except for // a comparison and a conditional branch. SimplifyCFG may be able // to fold it now. - if (!FoldBranchToCommonDest(BI, /*DTU=*/nullptr, MSSAU)) + if (!FoldBranchToCommonDest(BI, CostTracker, /*DTU=*/nullptr, MSSAU)) continue; // Success. The block is now dead, so remove it from the loop, |