| ; RUN: llc -march=hexagon < %s |
| ; REQUIRES: asserts |
| ; |
| ; The tail calls to foo and bar are branches with functions as operands, |
| ; instead of basic blocks. Make sure we don't crash on such instructions. |
| |
| 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" |
| target triple = "hexagon" |
| |
| %struct.t0 = type { i8, [2 x i8] } |
| %struct.t1 = type { i8, i8, [1900 x i8], %struct.t0 } |
| |
| @var = internal global [3 x %struct.t1] zeroinitializer, align 8 |
| declare void @foo() #2 |
| declare void @bar(i32, i32) #2 |
| |
| ; Function Attrs: nounwind |
| define void @fred(i8 signext %a, i8 signext %b) #1 { |
| entry: |
| %i = sext i8 %a to i32 |
| %t = getelementptr inbounds [3 x %struct.t1], [3 x %struct.t1]* @var, i32 0, i32 %i, i32 3, i32 0 |
| %0 = load i8, i8* %t, align 8 |
| switch i8 %0, label %if.end14 [ |
| i8 1, label %if.then |
| i8 0, label %do.body |
| ] |
| |
| if.then: ; preds = %entry |
| %j = sext i8 %b to i32 |
| %u = getelementptr inbounds [3 x %struct.t1], [3 x %struct.t1]* @var, i32 0, i32 %i, i32 3, i32 1, i32 %j |
| store i8 1, i8* %u, align 1 |
| tail call void @foo() #0 |
| br label %if.end14 |
| |
| do.body: ; preds = %entry |
| %conv11 = sext i8 %b to i32 |
| tail call void @bar(i32 %i, i32 %conv11) #0 |
| br label %if.end14 |
| |
| if.end14: ; preds = %entry, %do.body, %if.then |
| ret void |
| } |
| |
| attributes #0 = { nounwind } |
| attributes #1 = { nounwind "disable-tail-calls"="false" } |
| attributes #2 = { "disable-tail-calls"="false" } |
