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llvm-project/llvm/test/Transforms/LoopSimplify/single-backedge.ll

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Generalize test case to handle multiple indvars modes. llvm-svn: 139578
2011-09-13 11:17:25 +08:00
; The loop canonicalization pass should guarantee that there is one backedge
; for all loops. This allows the -indvars pass to recognize the %IV
new testcase llvm-svn: 9064
2003-10-13 06:26:42 +08:00
; induction variable in this testcase.
Generalize test case to handle multiple indvars modes. llvm-svn: 139578
2011-09-13 11:17:25 +08:00
; RUN: opt < %s -indvars -S | FileCheck %s
; CHECK: Loop.backedge:
; CHECK-NOT: br
[LoopSimplify] Set proper debug location in loop backedge blocks. Set debug location for terminator instruction in loop backedge block (which is an unconditional jump to loop header). We can't copy debug location from original backedges, as there can be several of them, with different debug info locations. So, we follow the approach of SplitBlockPredecessors, and copy the debug info from first non-PHI instruction in the header (i.e. destination block). This is yet another change for PR23837. llvm-svn: 240999
2015-06-30 05:30:14 +08:00
; CHECK: br label %Loop, !dbg [[BACKEDGE_LOC:![0-9]+]]
; CHECK: [[BACKEDGE_LOC]] = !DILocation(line: 101, column: 1, scope: !{{.*}})
new testcase llvm-svn: 9064
2003-10-13 06:26:42 +08:00
Byebye llvm-upgrade! llvm-svn: 48762
2008-03-25 12:26:08 +08:00
define i32 @test(i1 %C) {
; <label>:0
[LoopSimplify] Set proper debug location in loop backedge blocks. Set debug location for terminator instruction in loop backedge block (which is an unconditional jump to loop header). We can't copy debug location from original backedges, as there can be several of them, with different debug info locations. So, we follow the approach of SplitBlockPredecessors, and copy the debug info from first non-PHI instruction in the header (i.e. destination block). This is yet another change for PR23837. llvm-svn: 240999
2015-06-30 05:30:14 +08:00
br label %Loop, !dbg !6
Loop: ; preds = %BE2, %BE1, %0
%IV = phi i32 [ 1, %0 ], [ %IV2, %BE1 ], [ %IV2, %BE2 ] ; <i32> [#uses=2]
store i32 %IV, i32* null, !dbg !7
%IV2 = add i32 %IV, 2, !dbg !8 ; <i32> [#uses=2]
br i1 %C, label %BE1, label %BE2, !dbg !9
BE1: ; preds = %Loop
br label %Loop, !dbg !10
BE2: ; preds = %n br label %Loop
br label %Loop, !dbg !11
new testcase llvm-svn: 9064
2003-10-13 06:26:42 +08:00
}
Byebye llvm-upgrade! llvm-svn: 48762
2008-03-25 12:26:08 +08:00
[LoopSimplify] Set proper debug location in loop backedge blocks. Set debug location for terminator instruction in loop backedge block (which is an unconditional jump to loop header). We can't copy debug location from original backedges, as there can be several of them, with different debug info locations. So, we follow the approach of SplitBlockPredecessors, and copy the debug info from first non-PHI instruction in the header (i.e. destination block). This is yet another change for PR23837. llvm-svn: 240999
2015-06-30 05:30:14 +08:00
!llvm.module.flags = !{!0, !1}
[DebugInfo] Fix tests so that each subprogram belongs to a CU. llvm-svn: 265490
2016-04-06 07:37:08 +08:00
!llvm.dbg.cu = !{!12}
[LoopSimplify] Set proper debug location in loop backedge blocks. Set debug location for terminator instruction in loop backedge block (which is an unconditional jump to loop header). We can't copy debug location from original backedges, as there can be several of them, with different debug info locations. So, we follow the approach of SplitBlockPredecessors, and copy the debug info from first non-PHI instruction in the header (i.e. destination block). This is yet another change for PR23837. llvm-svn: 240999
2015-06-30 05:30:14 +08:00
!0 = !{i32 2, !"Dwarf Version", i32 4}
!1 = !{i32 2, !"Debug Info Version", i32 3}
!2 = !{}
!3 = !DISubroutineType(types: !2)
!4 = !DIFile(filename: "atomic.cpp", directory: "/tmp")
[PR27284] Reverse the ownership between DICompileUnit and DISubprogram. Currently each Function points to a DISubprogram and DISubprogram has a scope field. For member functions the scope is a DICompositeType. DIScopes point to the DICompileUnit to facilitate type uniquing. Distinct DISubprograms (with isDefinition: true) are not part of the type hierarchy and cannot be uniqued. This change removes the subprograms list from DICompileUnit and instead adds a pointer to the owning compile unit to distinct DISubprograms. This would make it easy for ThinLTO to strip unneeded DISubprograms and their transitively referenced debug info. Motivation ---------- Materializing DISubprograms is currently the most expensive operation when doing a ThinLTO build of clang. We want the DISubprogram to be stored in a separate Bitcode block (or the same block as the function body) so we can avoid having to expensively deserialize all DISubprograms together with the global metadata. If a function has been inlined into another subprogram we need to store a reference the block containing the inlined subprogram. Attached to https://llvm.org/bugs/show_bug.cgi?id=27284 is a python script that updates LLVM IR testcases to the new format. http://reviews.llvm.org/D19034 <rdar://problem/25256815> llvm-svn: 266446
2016-04-15 23:57:41 +08:00
!5 = distinct !DISubprogram(name: "test", scope: !4, file: !4, line: 99, type: !3, isLocal: false, isDefinition: true, scopeLine: 100, flags: DIFlagPrototyped, isOptimized: false, unit: !12, variables: !2)
[LoopSimplify] Set proper debug location in loop backedge blocks. Set debug location for terminator instruction in loop backedge block (which is an unconditional jump to loop header). We can't copy debug location from original backedges, as there can be several of them, with different debug info locations. So, we follow the approach of SplitBlockPredecessors, and copy the debug info from first non-PHI instruction in the header (i.e. destination block). This is yet another change for PR23837. llvm-svn: 240999
2015-06-30 05:30:14 +08:00
!6 = !DILocation(line: 100, column: 1, scope: !5)
!7 = !DILocation(line: 101, column: 1, scope: !5)
!8 = !DILocation(line: 102, column: 1, scope: !5)
!9 = !DILocation(line: 103, column: 1, scope: !5)
!10 = !DILocation(line: 104, column: 1, scope: !5)
!11 = !DILocation(line: 105, column: 1, scope: !5)
[DebugInfo] Fix tests so that each subprogram belongs to a CU. llvm-svn: 265490
2016-04-06 07:37:08 +08:00
!12 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang",
file: !4,
isOptimized: true, flags: "-O2",
[PR27284] Reverse the ownership between DICompileUnit and DISubprogram. Currently each Function points to a DISubprogram and DISubprogram has a scope field. For member functions the scope is a DICompositeType. DIScopes point to the DICompileUnit to facilitate type uniquing. Distinct DISubprograms (with isDefinition: true) are not part of the type hierarchy and cannot be uniqued. This change removes the subprograms list from DICompileUnit and instead adds a pointer to the owning compile unit to distinct DISubprograms. This would make it easy for ThinLTO to strip unneeded DISubprograms and their transitively referenced debug info. Motivation ---------- Materializing DISubprograms is currently the most expensive operation when doing a ThinLTO build of clang. We want the DISubprogram to be stored in a separate Bitcode block (or the same block as the function body) so we can avoid having to expensively deserialize all DISubprograms together with the global metadata. If a function has been inlined into another subprogram we need to store a reference the block containing the inlined subprogram. Attached to https://llvm.org/bugs/show_bug.cgi?id=27284 is a python script that updates LLVM IR testcases to the new format. http://reviews.llvm.org/D19034 <rdar://problem/25256815> llvm-svn: 266446
2016-04-15 23:57:41 +08:00
splitDebugFilename: "abc.debug", emissionKind: 2)