Long Vector Execution Tests: Unary Math Ops

The most recent Long Vector test plan document should be referenced when implementing: [Long Vector Test Plan](https://github.com/microsoft/hlsl-specs/blob/b9922ed215ac7e078bc7f45a831d1d8d0df525c8/proposals/infra/INF-0005-Long-Vector-ExecutionTest-Plan.md)

| Intrinsic   | DXIL OPCode(s) | LLVM Instruction(s) | HLSL Function Signature | Accepted Inputs | Docs |
|-------------|----------------|----------------------|--------------------------|-------|------|
| abs         | `Imax`, `Fabs` |                      | `abs(x)`                 | `numeric` | [abs](https://learn.microsoft.com/en-us/windows/win32/direct3dhlsl/dx-graphics-hlsl-intrinsic-functions) |
| ceil        | `Round_pi`     |                      | `ceil(x)`                | `floatlike` | [ceil](https://learn.microsoft.com/en-us/windows/win32/direct3dhlsl/dx-graphics-hlsl-intrinsic-functions) |
| exp         | `Exp`          |                      | `exp(x)`                 | `floatlike` | [exp](https://learn.microsoft.com/en-us/windows/win32/direct3dhlsl/dx-graphics-hlsl-intrinsic-functions) |
| floor       | `Round_ni`     |                      | `floor(x)`               | `floatlike`  | [floor](https://learn.microsoft.com/en-us/windows/win32/direct3dhlsl/dx-graphics-hlsl-intrinsic-functions) |
| frac        | `rc`           |                      | `frac(x)`                | `floatlike`  | [frac](https://learn.microsoft.com/en-us/windows/win32/direct3dhlsl/dx-graphics-hlsl-intrinsic-functions) |
| log         | `Log`          | `FMul`               | `log(x)`                 | `floatlike`  | [log](https://learn.microsoft.com/en-us/windows/win32/direct3dhlsl/dx-graphics-hlsl-intrinsic-functions) |
| rcp         |                | `FDiv`               | `rcp(x)`                 | `anyfloat`  | [rcp](https://learn.microsoft.com/en-us/windows/win32/direct3dhlsl/dx-graphics-hlsl-intrinsic-functions) |
| round       | `Round_ne`     |                      | `round(x)`               | `floatlike`  | [round](https://learn.microsoft.com/en-us/windows/win32/direct3dhlsl/dx-graphics-hlsl-intrinsic-functions) |
| rsqrt       | `Rsqrt`        |                      | `rsqrt(x)`               | `floatlike`  | [rsqrt](https://learn.microsoft.com/en-us/windows/win32/direct3dhlsl/dx-graphics-hlsl-intrinsic-functions) |
| sign        |                | `ZExt`, `Sub`, `ICmpSLT`, `FCmpOLT` | `sign(x)` | `numeric` | [sign](https://learn.microsoft.com/en-us/windows/win32/direct3dhlsl/dx-graphics-hlsl-intrinsic-functions) |
| sqrt        | `Sqrt`         |                      | `sqrt(x)`                | `floatlike` | [sqrt](https://learn.microsoft.com/en-us/windows/win32/direct3dhlsl/dx-graphics-hlsl-intrinsic-functions) |
| trunc       | `Round_z`      |                      | `trunc(x)`               | `floatlike` | [trunc](https://learn.microsoft.com/en-us/windows/win32/direct3dhlsl/dx-graphics-hlsl-intrinsic-functions) |
| exp2        | `Exp`          |                      | `exp2(x)`                | `floatlike`  | [exp2](https://learn.microsoft.com/en-us/windows/win32/direct3dhlsl/dx-graphics-hlsl-intrinsic-functions) |
| log10       | `Log`          | `FMul`               | `floatlike`              | `floatlike`  | [log10](https://learn.microsoft.com/en-us/windows/win32/direct3dhlsl/dx-graphics-hlsl-intrinsic-functions) |
| log2        | `Log`          |                      | `floatlike`                | `floatlike`  | [log2](https://learn.microsoft.com/en-us/windows/win32/direct3dhlsl/dx-graphics-hlsl-intrinsic-functions) |


Intrinsic	DXIL OPCode(s)	LLVM Instruction(s)	HLSL Function Signature	Accepted Inputs	Docs
abs	`Imax`, `Fabs`		`abs(x)`	`numeric`	abs
ceil	`Round_pi`		`ceil(x)`	`floatlike`	ceil
exp	`Exp`		`exp(x)`	`floatlike`	exp
floor	`Round_ni`		`floor(x)`	`floatlike`	floor
frac	`rc`		`frac(x)`	`floatlike`	frac
log	`Log`	`FMul`	`log(x)`	`floatlike`	log
rcp		`FDiv`	`rcp(x)`	`anyfloat`	rcp
round	`Round_ne`		`round(x)`	`floatlike`	round
rsqrt	`Rsqrt`		`rsqrt(x)`	`floatlike`	rsqrt
sign		`ZExt`, `Sub`, `ICmpSLT`, `FCmpOLT`	`sign(x)`	`numeric`	sign
sqrt	`Sqrt`		`sqrt(x)`	`floatlike`	sqrt
trunc	`Round_z`		`trunc(x)`	`floatlike`	trunc
exp2	`Exp`		`exp2(x)`	`floatlike`	exp2
log10	`Log`	`FMul`	`floatlike`	`floatlike`	log10
log2	`Log`		`floatlike`	`floatlike`	log2

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