builtin: sigjmpbuf/sigsetjmp/siglongjmp

cl/_testlibc/setjmp/in.go

@@ -0,0 +1,17 @@
+package main
+
+import (
+	"github.com/goplus/llgo/c"
+)
+
+func main() {
+	jb := c.AllocaSigjmpBuf()
+	switch ret := c.Sigsetjmp(jb, 0); ret {
+	case 0:
+		cstr := c.Str("?Hello, setjmp!\n")
+		c.Fprintf(c.Stderr, c.Advance(cstr, 1))
+		c.Siglongjmp(jb, 1)
+	default:
+		println("exception:", ret)
+	}
+}

cl/_testlibc/setjmp/out.ll

@@ -0,0 +1,73 @@
+; ModuleID = 'main'
+source_filename = "main"
+
+%"github.com/goplus/llgo/internal/runtime.String" = type { ptr, i64 }
+
+@"main.init$guard" = global ptr null
+@__llgo_argc = global ptr null
+@__llgo_argv = global ptr null
+@0 = private unnamed_addr constant [17 x i8] c"?Hello, setjmp!\0A\00", align 1
+@__stderrp = external global ptr
+@1 = private unnamed_addr constant [11 x i8] c"exception:\00", align 1
+
+define void @main.init() {
+_llgo_0:
+  %0 = load i1, ptr @"main.init$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
+  br label %_llgo_2
+
+_llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
+  ret void
+}
+
+define i32 @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 = alloca i8, i64 196, align 1
+  %3 = call i32 @sigsetjmp(ptr %2, i32 0)
+  %4 = icmp eq i32 %3, 0
+  br i1 %4, label %_llgo_2, label %_llgo_3
+
+_llgo_1:                                          ; preds = %_llgo_3, %_llgo_2
+  ret i32 0
+
+_llgo_2:                                          ; preds = %_llgo_0
+  %5 = load ptr, ptr @__stderrp, align 8
+  %6 = call i32 (ptr, ptr, ...) @fprintf(ptr %5, ptr getelementptr (i8, ptr @0, i64 1))
+  call void @siglongjmp(ptr %2, i32 1)
+  br label %_llgo_1
+
+_llgo_3:                                          ; preds = %_llgo_0
+  %7 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
+  %8 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %7, i32 0, i32 0
+  store ptr @1, ptr %8, align 8
+  %9 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %7, i32 0, i32 1
+  store i64 10, ptr %9, align 4
+  %10 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %7, align 8
+  call void @"github.com/goplus/llgo/internal/runtime.PrintString"(%"github.com/goplus/llgo/internal/runtime.String" %10)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
+  %11 = sext i32 %3 to i64
+  call void @"github.com/goplus/llgo/internal/runtime.PrintInt"(i64 %11)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 10)
+  br label %_llgo_1
+}
+
+declare void @"github.com/goplus/llgo/internal/runtime.init"()
+
+declare i32 @sigsetjmp(ptr, i32)
+
+declare i32 @fprintf(ptr, ptr, ...)
+
+declare void @siglongjmp(ptr, i32)
+
+declare void @"github.com/goplus/llgo/internal/runtime.PrintString"(%"github.com/goplus/llgo/internal/runtime.String")
+
+declare void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8)
+
+declare void @"github.com/goplus/llgo/internal/runtime.PrintInt"(i64)