189d471191
Relanding this PR now that https://github.com/llvm/llvm-project/pull/90503 has merged. with `FTAN` landing in [TargetLoweringBase.cpp:L1021](https://github.com/llvm/llvm-project/blob/main/llvm/lib/CodeGen/TargetLoweringBase.cpp#L1020C23-L1021C63 ) There is now a llvm tan intrinsic 32\64\128 Expand case for all llvm backends. In LLVM, the `llvm.experimental.constrained.cos` and `llvm.experimental.constrained.sin` intrinsics are used for performing cosine and sine calculations with additional constraints on floating-point operations. This behavior is expected for all floating-point math intrinsics. This change adds these constraints for the `tan` intrinsic. - `Builtins.td` - replace TanF128 with F16F128MathTemplate - `CGBuiltin.cpp` - map existing tan builtins to `tan` and `constrained_tan` intrinsic - `ConstrainedOps.def` map tan and constrained_tan to an ISDOpcode. resolves #91421 --------- Co-authored-by: Farzon Lotfi <farzon@farzon.com>
138 lines
4.4 KiB
LLVM
138 lines
4.4 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -mtriple powerpc64le < %s | FileCheck %s
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; Check constrained ops converted to call
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define void @test(ptr %cast) strictfp {
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; CHECK-LABEL: test:
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; CHECK: # %bb.0: # %root
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; CHECK-NEXT: mflr 0
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; CHECK-NEXT: .cfi_def_cfa_offset 64
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; CHECK-NEXT: .cfi_offset lr, 16
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; CHECK-NEXT: .cfi_offset r29, -24
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; CHECK-NEXT: .cfi_offset r30, -16
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; CHECK-NEXT: std 29, -24(1) # 8-byte Folded Spill
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; CHECK-NEXT: std 30, -16(1) # 8-byte Folded Spill
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; CHECK-NEXT: stdu 1, -64(1)
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; CHECK-NEXT: addi 30, 3, -8
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; CHECK-NEXT: li 29, 255
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; CHECK-NEXT: std 0, 80(1)
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; CHECK-NEXT: .p2align 5
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; CHECK-NEXT: .LBB0_1: # %for.body
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; CHECK-NEXT: #
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; CHECK-NEXT: lfdu 1, 8(30)
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; CHECK-NEXT: bl cos
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; CHECK-NEXT: nop
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; CHECK-NEXT: addi 29, 29, -1
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; CHECK-NEXT: stfd 1, 0(30)
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; CHECK-NEXT: cmpldi 29, 0
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; CHECK-NEXT: bc 12, 1, .LBB0_1
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; CHECK-NEXT: # %bb.2: # %exit
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; CHECK-NEXT: addi 1, 1, 64
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; CHECK-NEXT: ld 0, 16(1)
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; CHECK-NEXT: ld 30, -16(1) # 8-byte Folded Reload
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; CHECK-NEXT: ld 29, -24(1) # 8-byte Folded Reload
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; CHECK-NEXT: mtlr 0
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; CHECK-NEXT: blr
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root:
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br label %for.body
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exit:
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ret void
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for.body:
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%i = phi i64 [ 0, %root ], [ %next, %for.body ]
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%idx = getelementptr inbounds double, ptr %cast, i64 %i
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%val = load double, ptr %idx
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%cos = tail call nnan ninf nsz arcp double @llvm.experimental.constrained.cos.f64(double %val, metadata !"round.dynamic", metadata !"fpexcept.strict")
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store double %cos, ptr %idx, align 8
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%next = add nuw nsw i64 %i, 1
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%cond = icmp eq i64 %next, 255
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br i1 %cond, label %exit, label %for.body
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}
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; Check constrained ops converted to native instruction
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define void @test2(ptr %cast) strictfp {
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; CHECK-LABEL: test2:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: li 4, 255
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; CHECK-NEXT: addi 3, 3, -8
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; CHECK-NEXT: mtctr 4
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; CHECK-NEXT: .p2align 4
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; CHECK-NEXT: .LBB1_1: # %for.body
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; CHECK-NEXT: #
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; CHECK-NEXT: lfdu 0, 8(3)
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; CHECK-NEXT: xssqrtdp 0, 0
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; CHECK-NEXT: stfd 0, 0(3)
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; CHECK-NEXT: bdnz .LBB1_1
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; CHECK-NEXT: # %bb.2: # %exit
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; CHECK-NEXT: blr
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entry:
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br label %for.body
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for.body:
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%i = phi i64 [ 0, %entry ], [ %next, %for.body ]
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%idx = getelementptr inbounds double, ptr %cast, i64 %i
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%val = load double, ptr %idx
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%cos = tail call nnan ninf nsz arcp double @llvm.experimental.constrained.sqrt.f64(double %val, metadata !"round.dynamic", metadata !"fpexcept.strict")
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store double %cos, ptr %idx, align 8
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%next = add nuw nsw i64 %i, 1
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%cond = icmp eq i64 %next, 255
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br i1 %cond, label %exit, label %for.body
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exit:
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ret void
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}
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; Check constrained ops converted to call
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define void @testTan(ptr %cast) strictfp {
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; CHECK-LABEL: testTan:
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; CHECK: # %bb.0: # %root
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; CHECK-NEXT: mflr 0
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; CHECK-NEXT: .cfi_def_cfa_offset 64
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; CHECK-NEXT: .cfi_offset lr, 16
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; CHECK-NEXT: .cfi_offset r29, -24
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; CHECK-NEXT: .cfi_offset r30, -16
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; CHECK-NEXT: std 29, -24(1) # 8-byte Folded Spill
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; CHECK-NEXT: std 30, -16(1) # 8-byte Folded Spill
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; CHECK-NEXT: stdu 1, -64(1)
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; CHECK-NEXT: addi 30, 3, -8
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; CHECK-NEXT: li 29, 255
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; CHECK-NEXT: std 0, 80(1)
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; CHECK-NEXT: .p2align 5
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; CHECK-NEXT: .LBB2_1: # %for.body
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; CHECK-NEXT: #
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; CHECK-NEXT: lfdu 1, 8(30)
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; CHECK-NEXT: bl tan
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; CHECK-NEXT: nop
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; CHECK-NEXT: addi 29, 29, -1
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; CHECK-NEXT: stfd 1, 0(30)
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; CHECK-NEXT: cmpldi 29, 0
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; CHECK-NEXT: bc 12, 1, .LBB2_1
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; CHECK-NEXT: # %bb.2: # %exit
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; CHECK-NEXT: addi 1, 1, 64
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; CHECK-NEXT: ld 0, 16(1)
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; CHECK-NEXT: ld 30, -16(1) # 8-byte Folded Reload
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; CHECK-NEXT: ld 29, -24(1) # 8-byte Folded Reload
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; CHECK-NEXT: mtlr 0
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; CHECK-NEXT: blr
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root:
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br label %for.body
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exit:
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ret void
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for.body:
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%i = phi i64 [ 0, %root ], [ %next, %for.body ]
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%idx = getelementptr inbounds double, ptr %cast, i64 %i
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%val = load double, ptr %idx
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%tan = tail call nnan ninf nsz arcp double @llvm.experimental.constrained.tan.f64(double %val, metadata !"round.dynamic", metadata !"fpexcept.strict")
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store double %tan, ptr %idx, align 8
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%next = add nuw nsw i64 %i, 1
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%cond = icmp eq i64 %next, 255
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br i1 %cond, label %exit, label %for.body
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}
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declare double @llvm.experimental.constrained.cos.f64(double, metadata, metadata)
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declare double @llvm.experimental.constrained.tan.f64(double, metadata, metadata)
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declare double @llvm.experimental.constrained.sqrt.f64(double, metadata, metadata)
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