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| -rw-r--r-- | docs/LangRef.html | 35 | ||||
| -rw-r--r-- | include/llvm/Intrinsics.td | 1 | ||||
| -rw-r--r-- | lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp | 5 |
3 files changed, 41 insertions, 0 deletions
diff --git a/docs/LangRef.html b/docs/LangRef.html index 4d0539241f..ef58b98817 100644 --- a/docs/LangRef.html +++ b/docs/LangRef.html @@ -258,6 +258,7 @@ <li><a href="#int_log">'<tt>llvm.log.*</tt>' Intrinsic</a></li> <li><a href="#int_fma">'<tt>llvm.fma.*</tt>' Intrinsic</a></li> <li><a href="#int_fabs">'<tt>llvm.fabs.*</tt>' Intrinsic</a></li> + <li><a href="#int_floor">'<tt>llvm.floor.*</tt>' Intrinsic</a></li> </ol> </li> <li><a href="#int_manip">Bit Manipulation Intrinsics</a> @@ -7544,6 +7545,40 @@ LLVM</a>.</p> </div> +<!-- _______________________________________________________________________ --> +<h4> + <a name="int_floor">'<tt>llvm.floor.*</tt>' Intrinsic</a> +</h4> + +<div> + +<h5>Syntax:</h5> +<p>This is an overloaded intrinsic. You can use <tt>llvm.floor</tt> on any + floating point or vector of floating point type. Not all targets support all + types however.</p> + +<pre> + declare float @llvm.floor.f32(float %Val) + declare double @llvm.floor.f64(double %Val) + declare x86_fp80 @llvm.floor.f80(x86_fp80 %Val) + declare fp128 @llvm.floor.f128(fp128 %Val) + declare ppc_fp128 @llvm.floor.ppcf128(ppc_fp128 %Val) +</pre> + +<h5>Overview:</h5> +<p>The '<tt>llvm.floor.*</tt>' intrinsics return the floor of + the operand.</p> + +<h5>Arguments:</h5> +<p>The argument and return value are floating point numbers of the same + type.</p> + +<h5>Semantics:</h5> +<p>This function returns the same values as the libm <tt>floor</tt> functions + would, and handles error conditions in the same way.</p> + +</div> + </div> <!-- ======================================================================= --> diff --git a/include/llvm/Intrinsics.td b/include/llvm/Intrinsics.td index 06850c9999..f3c58acb2a 100644 --- a/include/llvm/Intrinsics.td +++ b/include/llvm/Intrinsics.td @@ -261,6 +261,7 @@ let Properties = [IntrReadMem] in { def int_exp : Intrinsic<[llvm_anyfloat_ty], [LLVMMatchType<0>]>; def int_exp2 : Intrinsic<[llvm_anyfloat_ty], [LLVMMatchType<0>]>; def int_fabs : Intrinsic<[llvm_anyfloat_ty], [LLVMMatchType<0>]>; + def int_floor : Intrinsic<[llvm_anyfloat_ty], [LLVMMatchType<0>]>; } let Properties = [IntrNoMem] in { diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp index 8cbe818281..2cdc41b078 100644 --- a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp +++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp @@ -4929,6 +4929,11 @@ SelectionDAGBuilder::visitIntrinsicCall(const CallInst &I, unsigned Intrinsic) { getValue(I.getArgOperand(0)).getValueType(), getValue(I.getArgOperand(0)))); return 0; + case Intrinsic::floor: + setValue(&I, DAG.getNode(ISD::FFLOOR, dl, + getValue(I.getArgOperand(0)).getValueType(), + getValue(I.getArgOperand(0)))); + return 0; case Intrinsic::fma: setValue(&I, DAG.getNode(ISD::FMA, dl, getValue(I.getArgOperand(0)).getValueType(), |