1; RUN: llc -mtriple=hexagon < %s | FileCheck %s 2; 3; This used to crash. 4; CHECK: call f1 5 6target triple = "hexagon-unknown--elf" 7 8%struct.0 = type { [5 x i32] } 9%struct.2 = type { i32, i32, i32, ptr } 10%struct.1 = type { ptr, i32, i32, i32 } 11 12@g0 = external hidden unnamed_addr constant [52 x i8], align 1 13@g1 = external hidden unnamed_addr constant [3 x i8], align 1 14 15declare extern_weak void @f0(i32, ptr, i32, ptr, ...) #0 16declare void @f1(ptr, i32) #0 17 18define void @fred(ptr %a0) #0 { 19b1: 20 %v2 = alloca %struct.0, align 4 21 %v3 = alloca %struct.2, i32 undef, align 8 22 br i1 undef, label %b5, label %b4 23 24b4: ; preds = %b1 25 br label %b7 26 27b5: ; preds = %b5, %b1 28 %v6 = getelementptr inbounds %struct.2, ptr %v3, i32 undef, i32 3 29 store ptr undef, ptr %v6, align 4 30 br label %b5 31 32b7: ; preds = %b10, %b4 33 %v8 = call i32 @llvm.hexagon.V6.extractw(<16 x i32> zeroinitializer, i32 0) 34 %cmp = icmp eq ptr @f0, null 35 br i1 %cmp, label %b11, label %b9 36 37b9: ; preds = %b7 38 call void (i32, ptr, i32, ptr, ...) @f0(i32 2, ptr @g0, i32 2346, ptr @g1, i32 %v8) 39 unreachable 40 41b10: ; preds = %b11 42 call void @f1(ptr nonnull %v2, i32 28) 43 br label %b7 44 45b11: ; preds = %b11, %b7 46 br i1 undef, label %b10, label %b11 47} 48 49declare i32 @llvm.hexagon.V6.extractw(<16 x i32>, i32) #1 50 51attributes #0 = { nounwind "target-cpu"="hexagonv60" "target-features"="+hvxv60,+hvx-length64b" } 52attributes #1 = { nounwind readnone } 53