maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity
llvm-project/llvm/test/CodeGen/XCore/dwarf_debug.ll

40 lines
1.8 KiB
LLVM
Raw Normal View History

llvm/test/CodeGen/XCore/dwarf_debug.ll: Fix not to be affected by *-win32. llvm-svn: 212335
2014-07-04 19:58:03 +08:00
; RUN: llc < %s -mtriple=xcore-unknown-unknown -O0 | FileCheck %s
XCore target: remove incorrect DebugLoc entries from prologue Summary: This was causing the prologue_end to be incorrectly positioned. Differential Revision: http://reviews.llvm.org/D4122 llvm-svn: 212318
2014-07-04 14:38:22 +08:00
; target datalayout = "e-m:e-p:32:32-i1:8:32-i8:8:32-i16:16:32-i64:32-f64:32-a:0:32-n32"
; target triple = "xcore"
; CHECK-LABEL: f
; CHECK: entsp 2
; ...the prologue...
; CHECK: .loc 1 2 0 prologue_end # :2:0
; CHECK: add r0, r0, 1
; CHECK: retsp 2
define i32 @f(i32 %a) {
entry:
%a.addr = alloca i32, align 4
store i32 %a, i32* %a.addr, align 4
Revert "Revert "DI: Fold constant arguments into a single MDString"" This reverts commit r218918, effectively reapplying r218914 after fixing an Ocaml bindings test and an Asan crash. The root cause of the latter was a tightened-up check in `DILexicalBlock::Verify()`, so I'll file a PR to investigate who requires the loose check (and why). Original commit message follows. -- This patch addresses the first stage of PR17891 by folding constant arguments together into a single MDString. Integers are stringified and a `\0` character is used as a separator. Part of PR17891. Note: I've attached my testcases upgrade scripts to the PR. If I've just broken your out-of-tree testcases, they might help. llvm-svn: 219010
2014-10-04 04:01:09 +08:00
call void @llvm.dbg.declare(metadata !{i32* %a.addr}, metadata !11, metadata !{metadata !"0x102"}), !dbg !12
XCore target: remove incorrect DebugLoc entries from prologue Summary: This was causing the prologue_end to be incorrectly positioned. Differential Revision: http://reviews.llvm.org/D4122 llvm-svn: 212318
2014-07-04 14:38:22 +08:00
%0 = load i32* %a.addr, align 4, !dbg !12
%add = add nsw i32 %0, 1, !dbg !12
ret i32 %add, !dbg !12
}
Move the complex address expression out of DIVariable and into an extra argument of the llvm.dbg.declare/llvm.dbg.value intrinsics. Previously, DIVariable was a variable-length field that has an optional reference to a Metadata array consisting of a variable number of complex address expressions. In the case of OpPiece expressions this is wasting a lot of storage in IR, because when an aggregate type is, e.g., SROA'd into all of its n individual members, the IR will contain n copies of the DIVariable, all alike, only differing in the complex address reference at the end. By making the complex address into an extra argument of the dbg.value/dbg.declare intrinsics, all of the pieces can reference the same variable and the complex address expressions can be uniqued across the CU, too. Down the road, this will allow us to move other flags, such as "indirection" out of the DIVariable, too. The new intrinsics look like this: declare void @llvm.dbg.declare(metadata %storage, metadata %var, metadata %expr) declare void @llvm.dbg.value(metadata %storage, i64 %offset, metadata %var, metadata %expr) This patch adds a new LLVM-local tag to DIExpressions, so we can detect and pretty-print DIExpression metadata nodes. What this patch doesn't do: This patch does not touch the "Indirect" field in DIVariable; but moving that into the expression would be a natural next step. http://reviews.llvm.org/D4919 rdar://problem/17994491 Thanks to dblaikie and dexonsmith for reviewing this patch! Note: I accidentally committed a bogus older version of this patch previously. llvm-svn: 218787
2014-10-02 02:55:02 +08:00
declare void @llvm.dbg.declare(metadata, metadata, metadata)
XCore target: remove incorrect DebugLoc entries from prologue Summary: This was causing the prologue_end to be incorrectly positioned. Differential Revision: http://reviews.llvm.org/D4122 llvm-svn: 212318
2014-07-04 14:38:22 +08:00
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!9, !10}
Revert "Revert "DI: Fold constant arguments into a single MDString"" This reverts commit r218918, effectively reapplying r218914 after fixing an Ocaml bindings test and an Asan crash. The root cause of the latter was a tightened-up check in `DILexicalBlock::Verify()`, so I'll file a PR to investigate who requires the loose check (and why). Original commit message follows. -- This patch addresses the first stage of PR17891 by folding constant arguments together into a single MDString. Integers are stringified and a `\0` character is used as a separator. Part of PR17891. Note: I've attached my testcases upgrade scripts to the PR. If I've just broken your out-of-tree testcases, they might help. llvm-svn: 219010
2014-10-04 04:01:09 +08:00
!0 = metadata !{metadata !"0x11\0012\00\000\00\000\00\001", metadata !1, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2} ; [ DW_TAG_compile_unit ]
XCore target: remove incorrect DebugLoc entries from prologue Summary: This was causing the prologue_end to be incorrectly positioned. Differential Revision: http://reviews.llvm.org/D4122 llvm-svn: 212318
2014-07-04 14:38:22 +08:00
!1 = metadata !{metadata !"", metadata !""}
!2 = metadata !{}
!3 = metadata !{metadata !4}
Revert "Revert "DI: Fold constant arguments into a single MDString"" This reverts commit r218918, effectively reapplying r218914 after fixing an Ocaml bindings test and an Asan crash. The root cause of the latter was a tightened-up check in `DILexicalBlock::Verify()`, so I'll file a PR to investigate who requires the loose check (and why). Original commit message follows. -- This patch addresses the first stage of PR17891 by folding constant arguments together into a single MDString. Integers are stringified and a `\0` character is used as a separator. Part of PR17891. Note: I've attached my testcases upgrade scripts to the PR. If I've just broken your out-of-tree testcases, they might help. llvm-svn: 219010
2014-10-04 04:01:09 +08:00
!4 = metadata !{metadata !"0x2e\00f\00f\00\002\000\001\000\006\00256\000\002", metadata !1, metadata !5, metadata !6, null, i32 (i32)* @f, null, null, metadata !2} ; [ DW_TAG_subprogram ]
!5 = metadata !{metadata !"0x29", metadata !1} ; [ DW_TAG_file_type ]
!6 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !7, null, null, null} ; [ DW_TAG_subroutine_type ]
XCore target: remove incorrect DebugLoc entries from prologue Summary: This was causing the prologue_end to be incorrectly positioned. Differential Revision: http://reviews.llvm.org/D4122 llvm-svn: 212318
2014-07-04 14:38:22 +08:00
!7 = metadata !{metadata !8, metadata !8}
Revert "Revert "DI: Fold constant arguments into a single MDString"" This reverts commit r218918, effectively reapplying r218914 after fixing an Ocaml bindings test and an Asan crash. The root cause of the latter was a tightened-up check in `DILexicalBlock::Verify()`, so I'll file a PR to investigate who requires the loose check (and why). Original commit message follows. -- This patch addresses the first stage of PR17891 by folding constant arguments together into a single MDString. Integers are stringified and a `\0` character is used as a separator. Part of PR17891. Note: I've attached my testcases upgrade scripts to the PR. If I've just broken your out-of-tree testcases, they might help. llvm-svn: 219010
2014-10-04 04:01:09 +08:00
!8 = metadata !{metadata !"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ]
XCore target: remove incorrect DebugLoc entries from prologue Summary: This was causing the prologue_end to be incorrectly positioned. Differential Revision: http://reviews.llvm.org/D4122 llvm-svn: 212318
2014-07-04 14:38:22 +08:00
!9 = metadata !{i32 2, metadata !"Dwarf Version", i32 4}
Revert "Revert "DI: Fold constant arguments into a single MDString"" This reverts commit r218918, effectively reapplying r218914 after fixing an Ocaml bindings test and an Asan crash. The root cause of the latter was a tightened-up check in `DILexicalBlock::Verify()`, so I'll file a PR to investigate who requires the loose check (and why). Original commit message follows. -- This patch addresses the first stage of PR17891 by folding constant arguments together into a single MDString. Integers are stringified and a `\0` character is used as a separator. Part of PR17891. Note: I've attached my testcases upgrade scripts to the PR. If I've just broken your out-of-tree testcases, they might help. llvm-svn: 219010
2014-10-04 04:01:09 +08:00
!10 = metadata !{i32 2, metadata !"Debug Info Version", i32 2}
!11 = metadata !{metadata !"0x101\00a\0016777218\000", metadata !4, metadata !5, metadata !8} ; [ DW_TAG_arg_variable ]
XCore target: remove incorrect DebugLoc entries from prologue Summary: This was causing the prologue_end to be incorrectly positioned. Differential Revision: http://reviews.llvm.org/D4122 llvm-svn: 212318
2014-07-04 14:38:22 +08:00
!12 = metadata !{i32 2, i32 0, metadata !4, null}