1 ; RUN: llc -march=hexagon < %s
4 ; The tail calls to foo and bar are branches with functions as operands,
5 ; instead of basic blocks. Make sure we don't crash on such instructions.
7 target datalayout = "e-m:e-p:32:32:32-i64:64:64-i32:32:32-i16:16:16-i1:8:8-f64:64:64-f32:32:32-v64:64:64-v32:32:32-a:0-n16:32"
8 target triple = "hexagon"
10 %struct.t0 = type { i8, [2 x i8] }
11 %struct.t1 = type { i8, i8, [1900 x i8], %struct.t0 }
13 @var = internal global [3 x %struct.t1] zeroinitializer, align 8
14 declare void @foo() #2
15 declare void @bar(i32, i32) #2
17 ; Function Attrs: nounwind
18 define void @fred(i8 signext %a, i8 signext %b) #1 {
20 %i = sext i8 %a to i32
21 %t = getelementptr inbounds [3 x %struct.t1], [3 x %struct.t1]* @var, i32 0, i32 %i, i32 3, i32 0
22 %0 = load i8, i8* %t, align 8
23 switch i8 %0, label %if.end14 [
28 if.then: ; preds = %entry
29 %j = sext i8 %b to i32
30 %u = getelementptr inbounds [3 x %struct.t1], [3 x %struct.t1]* @var, i32 0, i32 %i, i32 3, i32 1, i32 %j
31 store i8 1, i8* %u, align 1
32 tail call void @foo() #0
35 do.body: ; preds = %entry
36 %conv11 = sext i8 %b to i32
37 tail call void @bar(i32 %i, i32 %conv11) #0
40 if.end14: ; preds = %entry, %do.body, %if.then
44 attributes #0 = { nounwind }
45 attributes #1 = { nounwind "disable-tail-calls"="false" }
46 attributes #2 = { "disable-tail-calls"="false" }