[TargetLibraryInfo] Correctly handle sqrt*_finite

[probinson]

Summary

Other <math>_finite calls are marked as unavailable except on GNU/Linux;
it looks like the sqrt set was just overlooked.

[spatel]

LGTM - for reference, I moved this list of functions with 52149f03053a1590b9cb1f6 but sqrt wasn't there before that either.

llvm/lib/Analysis/TargetLibraryInfo.cpp

if (!T.isOSLinux() || !T.isGNUEnvironment()) {
     TLI.setUnavailable(LibFunc_logf_finite);
     TLI.setUnavailable(LibFunc_logl_finite);
     TLI.setUnavailable(LibFunc_pow_finite);
     TLI.setUnavailable(LibFunc_powf_finite);
     TLI.setUnavailable(LibFunc_powl_finite);
     TLI.setUnavailable(LibFunc_sinh_finite);
     TLI.setUnavailable(LibFunc_sinhf_finite);
     TLI.setUnavailable(LibFunc_sinhl_finite);
+    TLI.setUnavailable(LibFunc_sqrt_finite);
+    TLI.setUnavailable(LibFunc_sqrtf_finite);
+    TLI.setUnavailable(LibFunc_sqrtl_finite);
   }
 
   if ((T.isOSLinux() && T.isGNUEnvironment()) ||
       (T.isAndroid() && !T.isAndroidVersionLT(28))) {
     // available IO unlocked variants on GNU/Linux and Android P or later
     TLI.setAvailable(LibFunc_getc_unlocked);
     TLI.setAvailable(LibFunc_getchar_unlocked);
     TLI.setAvailable(LibFunc_putc_unlocked);

llvm/test/CodeGen/X86/sqrt-fastmath.ll

 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
-; RUN: llc < %s -mtriple=x86_64-- -mcpu=x86-64 -mattr=+sse2 | FileCheck %s --check-prefix=CHECK --check-prefix=SSE
-; RUN: llc < %s -mtriple=x86_64-- -mcpu=x86-64 -mattr=+avx  | FileCheck %s --check-prefix=CHECK --check-prefix=AVX --check-prefix=AVX1
-; RUN: llc < %s -mtriple=x86_64-- -mcpu=x86-64 -mattr=+avx512f  | FileCheck %s --check-prefix=CHECK --check-prefix=AVX --check-prefix=AVX512
+; RUN: llc < %s -mtriple=x86_64--linux-gnu -mcpu=x86-64 -mattr=+sse2 | FileCheck %s --check-prefix=CHECK --check-prefix=SSE
+; RUN: llc < %s -mtriple=x86_64--linux-gnu -mcpu=x86-64 -mattr=+avx  | FileCheck %s --check-prefix=CHECK --check-prefix=AVX --check-prefix=AVX1
+; RUN: llc < %s -mtriple=x86_64--linux-gnu -mcpu=x86-64 -mattr=+avx512f  | FileCheck %s --check-prefix=CHECK --check-prefix=AVX --check-prefix=AVX512
 
 declare double @__sqrt_finite(double)
 declare float @__sqrtf_finite(float)
 declare x86_fp80 @__sqrtl_finite(x86_fp80)
 declare float @llvm.sqrt.f32(float)
 declare <4 x float> @llvm.sqrt.v4f32(<4 x float>)
 declare <8 x float> @llvm.sqrt.v8f32(<8 x float>)
 declare <16 x float> @llvm.sqrt.v16f32(<16 x float>)