[llvm] [HIPSTDPAR] Add handling for math builtins (PR #140158)

[Alex Voicu via llvm-commits]

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@@ -321,3 +332,111 @@ HipStdParAllocationInterpositionPass::run(Module &M, ModuleAnalysisManager&) {
 
   return PreservedAnalyses::none();
 }
+
+static constexpr std::pair<StringLiteral, StringLiteral> MathLibToHipStdPar[]{
+    {"acosh", "__hipstdpar_acosh_f64"},
+    {"acoshf", "__hipstdpar_acosh_f32"},
+    {"asinh", "__hipstdpar_asinh_f64"},
+    {"asinhf", "__hipstdpar_asinh_f32"},
+    {"atanh", "__hipstdpar_atanh_f64"},
+    {"atanhf", "__hipstdpar_atanh_f32"},
+    {"cbrt", "__hipstdpar_cbrt_f64"},
+    {"cbrtf", "__hipstdpar_cbrt_f32"},
+    {"erf", "__hipstdpar_erf_f64"},
+    {"erff", "__hipstdpar_erf_f32"},
+    {"erfc", "__hipstdpar_erfc_f64"},
+    {"erfcf", "__hipstdpar_erfc_f32"},
+    {"fdim", "__hipstdpar_fdim_f64"},
+    {"fdimf", "__hipstdpar_fdim_f32"},
+    {"expm1", "__hipstdpar_expm1_f64"},
+    {"expm1f", "__hipstdpar_expm1_f32"},
+    {"hypot", "__hipstdpar_hypot_f64"},
+    {"hypotf", "__hipstdpar_hypot_f32"},
+    {"ilogb", "__hipstdpar_ilogb_f64"},
+    {"ilogbf", "__hipstdpar_ilogb_f32"},
+    {"lgamma", "__hipstdpar_lgamma_f64"},
+    {"lgammaf", "__hipstdpar_lgamma_f32"},
+    {"log1p", "__hipstdpar_log1p_f64"},
+    {"log1pf", "__hipstdpar_log1p_f32"},
+    {"logb", "__hipstdpar_logb_f64"},
+    {"logbf", "__hipstdpar_logb_f32"},
+    {"nextafter", "__hipstdpar_nextafter_f64"},
+    {"nextafterf", "__hipstdpar_nextafter_f32"},
+    {"nexttoward", "__hipstdpar_nexttoward_f64"},
+    {"nexttowardf", "__hipstdpar_nexttoward_f32"},
+    {"remainder", "__hipstdpar_remainder_f64"},
+    {"remainderf", "__hipstdpar_remainder_f32"},
+    {"remquo", "__hipstdpar_remquo_f64"},
+    {"remquof", "__hipstdpar_remquo_f32"},
+    {"scalbln", "__hipstdpar_scalbln_f64"},
+    {"scalblnf", "__hipstdpar_scalbln_f32"},
+    {"scalbn", "__hipstdpar_scalbn_f64"},
+    {"scalbnf", "__hipstdpar_scalbn_f32"},
+    {"tgamma", "__hipstdpar_tgamma_f64"},
+    {"tgammaf", "__hipstdpar_tgamma_f32"}};
+
+PreservedAnalyses HipStdParMathFixupPass::run(Module &M,
+                                              ModuleAnalysisManager &) {
+  if (M.empty())
+    return PreservedAnalyses::all();
+
+  SmallVector<std::pair<Function *, std::string>> ToReplace;
+  for (auto &&F : M) {
+    if (!F.hasName())
+      continue;
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AlexVlx wrote:

It saves on doing the lookup for the `not_intrinsic` case.

https://github.com/llvm/llvm-project/pull/140158