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llvm: specify calling convention on call

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Looks like the compiler only was specifying the calling convention on
function declarations, but not on function calls.
But LLVM seems to produce "bad" code when optimizing with level -O2
unless you specify the same calling convention on the call too.
This commit is contained in:
Morten Hauke Solvang
2023-10-13 21:21:54 +02:00
parent 23c4615f5e
commit fb5bb1cd83
1 changed files with 3 additions and 0 deletions
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3
src/llvm_backend_proc.cpp
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@@ -891,6 +891,9 @@ gb_internal lbValue lb_emit_call_internal(lbProcedure *p, lbValue value, lbValue
LLVMValueRef ret = LLVMBuildCall2(p->builder, fnp, fn, args, arg_count, "");
auto llvm_cc = lb_calling_convention_map[proc_type->Proc.calling_convention];
LLVMSetInstructionCallConv(ret, llvm_cc);
LLVMAttributeIndex param_offset = LLVMAttributeIndex_FirstArgIndex;
if (return_ptr.value != nullptr) {
param_offset += 1;