[WASM] Fix for wasi libc build break add tan to RuntimeLibcallSignatureTable (#95082)

The wasm backend fetches the tan runtime lib call in
`llvm/include/llvm/IR/RuntimeLibcalls.def` via `StaticLibcallNameMap()`,
but ignores the runtime function because a function sinature mapping is
not specified in RuntimeLibcallSignatureTable(). The fix is to specify
the function signatures for float32-128.

This is a fix for a build break reported on PR
https://github.com/llvm/llvm-project/pull/94559#issuecomment-2159923215.

1 files changed, 3 insertions, 0 deletions

diff --git a/llvm/lib/Target/WebAssembly/WebAssemblyRuntimeLibcallSignatures.cpp b/llvm/lib/Target/WebAssembly/WebAssemblyRuntimeLibcallSignatures.cpp
index d993655..20e50c8 100644
--- a/llvm/lib/Target/WebAssembly/WebAssemblyRuntimeLibcallSignatures.cpp
+++ b/llvm/lib/Target/WebAssembly/WebAssemblyRuntimeLibcallSignatures.cpp
@@ -201,6 +201,9 @@ struct RuntimeLibcallSignatureTable {
     Table[RTLIB::COS_F32] = f32_func_f32;
     Table[RTLIB::COS_F64] = f64_func_f64;
     Table[RTLIB::COS_F128] = i64_i64_func_i64_i64;
+    Table[RTLIB::TAN_F32] = f32_func_f32;
+    Table[RTLIB::TAN_F64] = f64_func_f64;
+    Table[RTLIB::TAN_F128] = i64_i64_func_i64_i64;
     Table[RTLIB::SINCOS_F32] = func_f32_iPTR_iPTR;
     Table[RTLIB::SINCOS_F64] = func_f64_iPTR_iPTR;
     Table[RTLIB::SINCOS_F128] = func_i64_i64_iPTR_iPTR;