Merge pull request #154 from xushiwei/q

compileBlock bugfix: pyMod

cl/_testpy/math/out.ll

@@ -5,7 +5,6 @@ source_filename = "math"
 @"math.init$guard" = global ptr null
 @__llgo_py.math = linkonce global ptr null
 @0 = private unnamed_addr constant [5 x i8] c"math\00", align 1
-@1 = private unnamed_addr constant [5 x i8] c"sqrt\00", align 1
 
 define void @math.init() {
 _llgo_0:
@@ -15,20 +14,16 @@ _llgo_0:
 _llgo_1:                                          ; preds = %_llgo_0
   store i1 true, ptr @"math.init$guard", align 1
   %1 = load ptr, ptr @__llgo_py.math, align 8
-  call void (ptr, ...) @llgoLoadPyModSyms(ptr %1, ptr @1, ptr @__llgo_py.math.sqrt, ptr null)
-  %2 = load ptr, ptr @__llgo_py.math, align 8
-  %3 = icmp ne ptr %2, null
-  br i1 %3, label %_llgo_2, label %_llgo_3
+  %2 = icmp ne ptr %1, null
+  br i1 %2, label %_llgo_2, label %_llgo_3
 
 _llgo_2:                                          ; preds = %_llgo_3, %_llgo_1, %_llgo_0
   ret void
 
 _llgo_3:                                          ; preds = %_llgo_1
-  %4 = call ptr @PyImport_ImportModule(ptr @0)
-  store ptr %4, ptr @__llgo_py.math, align 8
+  %3 = call ptr @PyImport_ImportModule(ptr @0)
+  store ptr %3, ptr @__llgo_py.math, align 8
   br label %_llgo_2
 }
 
 declare ptr @PyImport_ImportModule(ptr)
-
-declare void @llgoLoadPyModSyms(ptr, ...)

cl/compile.go

@@ -347,7 +347,8 @@ func (p *context) compileBlock(b llssa.Builder, block *ssa.BasicBlock, n int, do
 		if pyModInit = p.pyMod != ""; pyModInit {
 			last = len(instrs) - 1
 			instrs = instrs[:last]
-		}
+		} else {
+			// TODO(xsw): confirm pyMod don't need to call LoadPyModSyms
 			p.inits = append(p.inits, func() {
 				if objs := pkg.PyObjs(); len(objs) > 0 {
 					mods := make(map[string][]llssa.PyObjRef)
@@ -355,12 +356,22 @@ func (p *context) compileBlock(b llssa.Builder, block *ssa.BasicBlock, n int, do
 						modName := modOf(name)
 						mods[modName] = append(mods[modName], obj)
 					}
+
+					// sort by module name
+					modNames := make([]string, 0, len(mods))
+					for modName := range mods {
+						modNames = append(modNames, modName)
+					}
+					sort.Strings(modNames)
+
 					b.SetBlockEx(ret, llssa.AfterInit)
-				for modName, objs := range mods {
+					for _, modName := range modNames {
+						objs := mods[modName]
 						b.LoadPyModSyms(modName, objs...)
 					}
 				}
 			})
+		}
 	} else if doMainInit {
 		fn := p.fn
 		argc := pkg.NewVar("__llgo_argc", types.NewPointer(types.Typ[types.Int32]), llssa.InC)