1 ;; Verify that @LPStart is omitted when there are no landing pads. This test
2 ;; uses an unkown personality to force emitting the exception table.
4 ; RUN: llc -basic-block-sections=all -mtriple=x86_64 < %s | FileCheck %s
6 declare void @throwit()
7 declare i32 @__unknown_ehpersonality(...)
9 define void @foo(i1 %cond) uwtable personality ptr @__unknown_ehpersonality {
11 br i1 %cond, label %cond.true, label %cond.false
13 cond.true: ; preds = %entry
17 cond.false: ; preds = %entry
21 ; CHECK: GCC_except_table0:
22 ; CHECK-NEXT: .Lexception0:
23 ; CHECK-NEXT: .byte 255 # @LPStart Encoding = omit
24 ; CHECK-NEXT: .byte 255 # @TType Encoding = omit
25 ; CHECK-NEXT: .byte 1 # Call site Encoding = uleb128
26 ; CHECK-NEXT: .uleb128 .Laction_table_base0-.Lcst_begin0
27 ; CHECK-NEXT: .Lcst_begin0:
28 ; CHECK-NEXT: .Lexception1:
29 ; CHECK-NEXT: .byte 255 # @LPStart Encoding = omit
30 ; CHECK-NEXT: .byte 255 # @TType Encoding = omit
31 ; CHECK-NEXT: .byte 1 # Call site Encoding = uleb128
32 ; CHECK-NEXT: .uleb128 .Laction_table_base0-.Lcst_begin1
33 ; CHECK-NEXT: .Lcst_begin1:
34 ; CHECK-NEXT: .Lexception2:
35 ; CHECK-NEXT: .byte 255 # @LPStart Encoding = omit
36 ; CHECK-NEXT: .byte 255 # @TType Encoding = omit
37 ; CHECK-NEXT: .byte 1 # Call site Encoding = uleb128
38 ; CHECK-NEXT: .uleb128 .Laction_table_base0-.Lcst_begin2
39 ; CHECK-NEXT: .Lcst_begin2:
40 ; CHECK-NEXT: .uleb128 foo.__part.2-foo.__part.2 # >> Call Site 1 <<
41 ; CHECK-NEXT: .uleb128 .LBB_END0_2-foo.__part.2 # Call between foo.__part.2 and .LBB_END0_2
42 ; CHECK-NEXT: .byte 0 # has no landing pad
43 ; CHECK-NEXT: .byte 0 # On action: cleanup
44 ; CHECK-NEXT: .Laction_table_base0: