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Split DWARF v2 tests to exclude 64-bit AIX targets (#189077)

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64-bit AIX requires DWARF64 format, which was only introduced in DWARF
v3. DWARF v2 only supports 32-bit DWARF format, making it incompatible
with 64-bit AIX (the compiler throws a fatal error). These changes split
DWARF v2 tests into separate files that exclude 64-bit AIX targets while
still running on 32-bit AIX and other 64-bit platforms where DWARF v2 is
supported.
This commit is contained in:
Lei Huang 2026-04-06 09:21:31 -04:00 committed by GitHub
parent b6e7c475cb
commit 74ad441a80
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GPG Key ID: B5690EEEBB952194
6 changed files with 37 additions and 6 deletions
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15
llvm/test/DebugInfo/Generic/debug-info-enum-dwarf2.ll Normal file
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; Test enumeration representation in DWARF debug info for DWARF v2:
; * test value representation for each possible underlying integer type
; * test the integer type is as expected
; * test the DW_AT_enum_class attribute is present (resp. absent) as expected.
; * test that DW_AT_type is present for v2 when strict DWARF is not enabled.
; This file contains the dwarf-version=2 tests extracted from debug-info-enum.ll.
; DWARF v2 is incompatible with 64-bit XCOFF/AIX (requires DWARF64 format which needs DWARF v3+).
; UNSUPPORTED: target=powerpc64{{.*}}-aix{{.*}}
; RUN: llc -debugger-tune=gdb -dwarf-version=2 -filetype=obj -o %t.o < %S/debug-info-enum.ll
; RUN: llvm-dwarfdump -debug-info %t.o | FileCheck %S/debug-info-enum.ll --check-prefixes=CHECK,CHECK-TYPE
; RUN: llc -debugger-tune=gdb -dwarf-version=2 -strict-dwarf=true -filetype=obj -o %t.o < %S/debug-info-enum.ll
; RUN: llvm-dwarfdump -debug-info %t.o | FileCheck %S/debug-info-enum.ll --check-prefixes=CHECK,CHECK-DW2-STRICT

6
llvm/test/DebugInfo/Generic/debug-info-enum.ll
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@ -9,10 +9,8 @@
; RUN: llvm-dwarfdump -debug-info %t.o | FileCheck %s --check-prefixes=CHECK,CHECK-DW4,CHECK-TYPE
; RUN: llc -debugger-tune=gdb -dwarf-version=3 -filetype=obj -o %t.o < %s
; RUN: llvm-dwarfdump -debug-info %t.o | FileCheck %s --check-prefixes=CHECK,CHECK-TYPE
; RUN: llc -debugger-tune=gdb -dwarf-version=2 -filetype=obj -o %t.o < %s
; RUN: llvm-dwarfdump -debug-info %t.o | FileCheck %s --check-prefixes=CHECK,CHECK-TYPE
; RUN: llc -debugger-tune=gdb -dwarf-version=2 -strict-dwarf=true -filetype=obj -o %t.o < %s
; RUN: llvm-dwarfdump -debug-info %t.o | FileCheck %s --check-prefixes=CHECK,CHECK-DW2-STRICT
; This file is also used by the dwarf-version=2 tests in debug-info-enum-dwarf2.ll.
@x0 = global i8 0, align 1, !dbg !0
@x1 = global i8 0, align 1, !dbg !46

10
llvm/test/DebugInfo/Generic/incorrect-variable-debugloc1-dwarf2.ll Normal file
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; xfail this test on hexagon because at O2, instructions are bundled in packets
; and DW_OP_lit13 is correctly omitted.
; XFAIL: target=hexagon-{{.*}}
; This file contains the dwarf-version=2 tests extracted from incorrect-variable-debugloc1.ll.
; DWARF v2 is incompatible with 64-bit XCOFF/AIX (requires DWARF64 format which needs DWARF v3+).
; UNSUPPORTED: target=powerpc64{{.*}}-aix{{.*}}
; RUN: %llc_dwarf -O2 -dwarf-version 2 -filetype=obj < %S/incorrect-variable-debugloc1.ll | llvm-dwarfdump - | FileCheck %S/incorrect-variable-debugloc1.ll --check-prefix=DWARF23

3
llvm/test/DebugInfo/Generic/incorrect-variable-debugloc1.ll
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@ -2,10 +2,11 @@
; and DW_OP_lit13 is correctly omitted.
; XFAIL: target=hexagon-{{.*}}
; RUN: %llc_dwarf -O2 -dwarf-version 2 -filetype=obj < %s | llvm-dwarfdump - | FileCheck %s --check-prefix=DWARF23
; RUN: %llc_dwarf -O2 -dwarf-version 3 -filetype=obj < %s | llvm-dwarfdump - | FileCheck %s --check-prefix=DWARF23
; RUN: %llc_dwarf -O2 -dwarf-version 4 -filetype=obj < %s | llvm-dwarfdump - | FileCheck %s --check-prefix=DWARF4
; This file is also used by the dwarf-version=2 tests in incorrect-variable-debugloc1-dwarf2.ll.
; This is a test for PR21176.
; DW_OP_const <const> doesn't describe a constant value, but a value at a constant address.
; The proper way to describe a constant value is DW_OP_constu <const>, DW_OP_stack_value.

6
llvm/test/DebugInfo/Generic/restrict-dwarf2.ll Normal file
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; This file contains the dwarf-version=2 tests extracted from restrict.ll.
; DWARF v2 is incompatible with 64-bit XCOFF/AIX (requires DWARF64 format which needs DWARF v3+).
; UNSUPPORTED: target=powerpc64{{.*}}-aix{{.*}}
; RUN: %llc_dwarf -dwarf-version=2 -O0 -filetype=obj < %S/restrict.ll | llvm-dwarfdump -debug-info - | FileCheck --check-prefix=CHECK --check-prefix=V2 %S/restrict.ll

3
llvm/test/DebugInfo/Generic/restrict.ll
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@ -1,6 +1,7 @@
; RUN: %llc_dwarf -dwarf-version=2 -O0 -filetype=obj < %s | llvm-dwarfdump -debug-info - | FileCheck --check-prefix=CHECK --check-prefix=V2 %s
; RUN: %llc_dwarf -dwarf-version=3 -O0 -filetype=obj < %s | llvm-dwarfdump -debug-info - | FileCheck --check-prefix=CHECK --check-prefix=V3 %s
; This file is also used by the dwarf-version=2 tests in restrict-dwarf2.ll.
; CHECK: DW_AT_name ("dst")
; V2: DW_AT_type ([[PTR:0x........]]
; V3: DW_AT_type ([[RESTRICT:0x........]]