llgo/ssa: pyCall; demo: _pydemo/callpy

cl/_testpy/callpy/in.go

@@ -4,9 +4,12 @@ import (
 	"github.com/goplus/llgo/c"
 	"github.com/goplus/llgo/py"
 	"github.com/goplus/llgo/py/math"
+	"github.com/goplus/llgo/py/os"
 )
 
 func main() {
 	x := math.Sqrt(py.Float(2))
+	wd := os.Getcwd()
 	c.Printf(c.Str("sqrt(2) = %f\n"), x.Float64())
+	c.Printf(c.Str("cwd = %s\n"), wd.CStr())
 }

cl/_testpy/callpy/out.ll

@@ -0,0 +1,59 @@
+; ModuleID = 'main'
+source_filename = "main"
+
+@"main.init$guard" = global ptr null
+@__llgo_argc = global ptr null
+@__llgo_argv = global ptr null
+@sqrt = external global ptr
+@getcwd = external global ptr
+@0 = private unnamed_addr constant [14 x i8] c"sqrt(2) = %f\0A\00", align 1
+@1 = private unnamed_addr constant [10 x i8] c"cwd = %s\0A\00", align 1
+
+define void @main.init() {
+_llgo_0:
+  %0 = load i1, ptr @"main.init$guard", align 1
+  br i1 %0, label %_llgo_2, label %_llgo_1
+
+_llgo_1:                                          ; preds = %_llgo_0
+  store i1 true, ptr @"main.init$guard", align 1
+  call void @"github.com/goplus/llgo/py/math.init"()
+  call void @"github.com/goplus/llgo/py/os.init"()
+  br label %_llgo_2
+
+_llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
+  ret void
+}
+
+define void @main(i32 %0, ptr %1) {
+_llgo_0:
+  store i32 %0, ptr @__llgo_argc, align 4
+  store ptr %1, ptr @__llgo_argv, align 8
+  call void @"github.com/goplus/llgo/internal/runtime.init"()
+  call void @main.init()
+  %2 = call ptr @PyFloat_FromDouble(double 2.000000e+00)
+  %3 = call ptr @PyObject_CallOneArg(ptr @sqrt, ptr %2)
+  %4 = call ptr @PyObject_CallNoArg(ptr @getcwd)
+  %5 = call double @PyFloat_AsDouble()
+  %6 = call i32 (ptr, ...) @printf(ptr @0, double %5)
+  %7 = call ptr @PyBytes_AsString()
+  %8 = call i32 (ptr, ...) @printf(ptr @1, ptr %7)
+  ret void
+}
+
+declare void @"github.com/goplus/llgo/py/math.init"()
+
+declare void @"github.com/goplus/llgo/py/os.init"()
+
+declare void @"github.com/goplus/llgo/internal/runtime.init"()
+
+declare ptr @PyFloat_FromDouble(double)
+
+declare ptr @PyObject_CallOneArg(ptr, ptr)
+
+declare ptr @PyObject_CallNoArg(ptr)
+
+declare double @PyFloat_AsDouble()
+
+declare i32 @printf(ptr, ...)
+
+declare ptr @PyBytes_AsString()