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| author | Momchil Velikov <momchil.velikov@arm.com> | 2024-06-17 17:57:07 +0100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2024-06-17 17:57:07 +0100 |
| commit | d1a4f0c9fb559eb4c2fb56112e56343bcd333edc (patch) | |
| tree | 9e4fabe1dfd9edfc0c4a2a9dea8cbf59e15b5120 /llvm/lib/CodeGen | |
| parent | 5914a5671a1596f68189c8408f8d877e6b6373bf (diff) | |
| download | llvm-d1a4f0c9fb559eb4c2fb56112e56343bcd333edc.zip llvm-d1a4f0c9fb559eb4c2fb56112e56343bcd333edc.tar.gz llvm-d1a4f0c9fb559eb4c2fb56112e56343bcd333edc.tar.bz2 | |
[AArch64] Lower extending sitofp using tbl (#92528)
In a similar manner as in https://reviews.llvm.org/D133494
use `TBL` to place bytes in the *upper* part of `i32` elements
and then convert to float using fixed-point `scvtf`, i.e.
scvtf Vd.4s, Vn.4s, #24
Diffstat (limited to 'llvm/lib/CodeGen')
| -rw-r--r-- | llvm/lib/CodeGen/CodeGenPrepare.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/CodeGenPrepare.cpp b/llvm/lib/CodeGen/CodeGenPrepare.cpp index bb2c76d..aee9935 100644 --- a/llvm/lib/CodeGen/CodeGenPrepare.cpp +++ b/llvm/lib/CodeGen/CodeGenPrepare.cpp @@ -8331,7 +8331,8 @@ bool CodeGenPrepare::optimizeInst(Instruction *I, ModifyDT &ModifiedDT) { if (OptimizeNoopCopyExpression(CI, *TLI, *DL)) return true; - if ((isa<UIToFPInst>(I) || isa<FPToUIInst>(I) || isa<TruncInst>(I)) && + if ((isa<UIToFPInst>(I) || isa<SIToFPInst>(I) || isa<FPToUIInst>(I) || + isa<TruncInst>(I)) && TLI->optimizeExtendOrTruncateConversion( I, LI->getLoopFor(I->getParent()), *TTI)) return true; |