[WebAssembly] Add atan2 to RuntimeLibcallSignatureTable (#112613)

This change is part of this proposal:
https://discourse.llvm.org/t/rfc-all-the-math-intrinsics/78294

- `WebAssemblyRuntimeLibcallSignatures.cpp`: Add `RTLIB::ATAN2*` to
RuntimeLibcallSignatureTable
- Add atan2 calls to `CodeGen/WebAssembly/libcalls-trig.ll` and update
test checks

Part of: Implement the atan2 HLSL Function #70096.

1 files changed, 3 insertions, 0 deletions

diff --git a/llvm/lib/Target/WebAssembly/WebAssemblyRuntimeLibcallSignatures.cpp b/llvm/lib/Target/WebAssembly/WebAssemblyRuntimeLibcallSignatures.cpp
index ba3ab51..aaa5225 100644
--- a/llvm/lib/Target/WebAssembly/WebAssemblyRuntimeLibcallSignatures.cpp
+++ b/llvm/lib/Target/WebAssembly/WebAssemblyRuntimeLibcallSignatures.cpp
@@ -213,6 +213,9 @@ struct RuntimeLibcallSignatureTable {
     Table[RTLIB::ATAN_F32] = f32_func_f32;
     Table[RTLIB::ATAN_F64] = f64_func_f64;
     Table[RTLIB::ATAN_F128] = i64_i64_func_i64_i64;
+    Table[RTLIB::ATAN2_F32] = f32_func_f32_f32;
+    Table[RTLIB::ATAN2_F64] = f64_func_f64_f64;
+    Table[RTLIB::ATAN2_F128] = i64_i64_func_i64_i64_i64_i64;
     Table[RTLIB::SINH_F32] = f32_func_f32;
     Table[RTLIB::SINH_F64] = f64_func_f64;
     Table[RTLIB::SINH_F128] = i64_i64_func_i64_i64;