[llvm] llvm-reduce: Add values to return reduction (PR #132686)

[Matt Arsenault via llvm-commits]

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@@ -1177,3 +1177,85 @@ bool llvm::NullPointerIsDefined(const Function *F, unsigned AS) {
 
   return false;
 }
+
+bool llvm::CallingConv::supportsNonVoidReturnType(CallingConv::ID CC) {
+  switch (CC) {
+  case CallingConv::C:
+  case CallingConv::Fast:
+  case CallingConv::Cold:
+  case CallingConv::GHC:
+  case CallingConv::HiPE:
+  case CallingConv::AnyReg:
+  case CallingConv::PreserveMost:
+  case CallingConv::PreserveAll:
+  case CallingConv::Swift:
+  case CallingConv::CXX_FAST_TLS:
+  case CallingConv::Tail:
+  case CallingConv::CFGuard_Check:
+  case CallingConv::SwiftTail:
+  case CallingConv::PreserveNone:
+  case CallingConv::X86_StdCall:
+  case CallingConv::X86_FastCall:
+  case CallingConv::ARM_APCS:
+  case CallingConv::ARM_AAPCS:
+  case CallingConv::ARM_AAPCS_VFP:
+  case CallingConv::MSP430_INTR:
+  case CallingConv::X86_ThisCall:
+  case CallingConv::PTX_Device:
+  case CallingConv::SPIR_FUNC:
+  case CallingConv::Intel_OCL_BI:
+  case CallingConv::X86_64_SysV:
+  case CallingConv::Win64:
+  case CallingConv::X86_VectorCall:
+  case CallingConv::DUMMY_HHVM:
+  case CallingConv::DUMMY_HHVM_C:
+  case CallingConv::X86_INTR:
+  case CallingConv::AVR_INTR:
+  case CallingConv::AVR_SIGNAL:
+  case CallingConv::AVR_BUILTIN:
+    return true;
+  case CallingConv::AMDGPU_KERNEL:
+  case CallingConv::SPIR_KERNEL:
+  case CallingConv::AMDGPU_CS_Chain:
+  case CallingConv::AMDGPU_CS_ChainPreserve:
+    return false;
+  case CallingConv::AMDGPU_VS:
+  case CallingConv::AMDGPU_HS:
+  case CallingConv::AMDGPU_GS:
+  case CallingConv::AMDGPU_PS:
+  case CallingConv::AMDGPU_CS:
+  case CallingConv::AMDGPU_LS:
+  case CallingConv::AMDGPU_ES:
+  case CallingConv::MSP430_BUILTIN:
+  case CallingConv::AArch64_VectorCall:
+  case CallingConv::AArch64_SVE_VectorCall:
+  case CallingConv::WASM_EmscriptenInvoke:
+  case CallingConv::AMDGPU_Gfx:
+  case CallingConv::M68k_INTR:
+  case CallingConv::AArch64_SME_ABI_Support_Routines_PreserveMost_From_X0:
+  case CallingConv::AArch64_SME_ABI_Support_Routines_PreserveMost_From_X2:
+  case CallingConv::M68k_RTD:
+  case CallingConv::GRAAL:
+  case CallingConv::ARM64EC_Thunk_X64:
+  case CallingConv::ARM64EC_Thunk_Native:
+  case CallingConv::RISCV_VectorCall:
+  case CallingConv::AArch64_SME_ABI_Support_Routines_PreserveMost_From_X1:
+  case CallingConv::RISCV_VLSCall_32:
+  case CallingConv::RISCV_VLSCall_64:
+  case CallingConv::RISCV_VLSCall_128:
+  case CallingConv::RISCV_VLSCall_256:
+  case CallingConv::RISCV_VLSCall_512:
+  case CallingConv::RISCV_VLSCall_1024:
+  case CallingConv::RISCV_VLSCall_2048:
+  case CallingConv::RISCV_VLSCall_4096:
+  case CallingConv::RISCV_VLSCall_8192:
+  case CallingConv::RISCV_VLSCall_16384:
+  case CallingConv::RISCV_VLSCall_32768:
+  case CallingConv::RISCV_VLSCall_65536:
+    return true;
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arsenm wrote:

I was trying to keep this sorted by enum value 

https://github.com/llvm/llvm-project/pull/132686