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llvm-project/llvm/test/CodeGen/Hexagon/packetize-debug-loc.mir

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Change how finalizeBundle selects debug location for the BUNDLE instruction Summary: Previously a BUNDLE instruction inherited the DebugLoc from the first instruction in the bundle, even if that DebugLoc had no DILocation. With this commit this is changed into selecting the first DebugLoc that has a DILocation, by searching among the bundled instructions. The idea is to reduce amount of bundles that are lacking debug locations. Reviewers: #debug-info, JDevlieghere Reviewed By: JDevlieghere Subscribers: JDevlieghere, mattd, llvm-commits Differential Revision: https://reviews.llvm.org/D50639 llvm-svn: 340267
2018-08-21 18:59:50 +08:00
# RUN: llc -march=hexagon -run-pass hexagon-packetizer %s -o - | FileCheck %s
##############################################################################
# This test case is not really hexagon specific, but we use hexagon to get
# bundling.
#
# The goal is to verify that the BUNDLE instruction is getting the first
# non-empty debug location among the bundled instructions.
##############################################################################
--- |
define void @test() { ret void }
!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "llvm", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !3, retainedTypes: !3)
!1 = distinct !DISubprogram(name: "test", scope: !3, file: !3, line: 1, type: !2, isLocal: false, isDefinition: true, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: true, unit: !0)
!2 = !DISubroutineType(types: !3)
!3 = !{null}
!5 = !DILocation(line: 126, column: 9, scope: !2)
!6 = !DILocation(line: 321, column: 4, scope: !2)
...
---
name: test
tracksRegLiveness: true
body: |
bb.0:
liveins: $r1
$r2 = L2_loadri_io $r1, 0, debug-location !5
$r3 = L2_loadri_io $r1, 0, debug-location !6
$r4 = L2_loadri_io $r1, 0
$r5 = L2_loadri_io $r1, 0, debug-location !5
$r6 = L2_loadri_io $r1, 0, debug-location !6
$r7 = L2_loadri_io $r1, 0
$r8 = L2_loadri_io $r1, 0
$r9 = L2_loadri_io $r1, 0
...
# CHECK-LABEL: name: test
# CHECK: BUNDLE
[mir] Serialize DILocation inline when not possible to use a metadata reference Summary: Sometimes MIR-level passes create DILocations that were not present in the LLVM-IR. For example, it may merge two DILocations together to produce a DILocation that points to line 0. Previously, the address of these DILocations were printed which prevented the MIR from being read back into LLVM. With this patch, DILocations will use metadata references where possible and fall back on serializing them inline like so: MOV32mr %stack.0.x.addr, 1, _, 0, _, %0, debug-location !DILocation(line: 1, scope: !15) Reviewers: aprantl, vsk, arphaman Reviewed By: aprantl Subscribers: probinson, llvm-commits Tags: #debug-info Differential Revision: https://reviews.llvm.org/D55243 llvm-svn: 349035
2018-12-13 22:25:27 +08:00
# CHECK-SAME: debug-location [[DL1:!DILocation([^)]+)]]
Change how finalizeBundle selects debug location for the BUNDLE instruction Summary: Previously a BUNDLE instruction inherited the DebugLoc from the first instruction in the bundle, even if that DebugLoc had no DILocation. With this commit this is changed into selecting the first DebugLoc that has a DILocation, by searching among the bundled instructions. The idea is to reduce amount of bundles that are lacking debug locations. Reviewers: #debug-info, JDevlieghere Reviewed By: JDevlieghere Subscribers: JDevlieghere, mattd, llvm-commits Differential Revision: https://reviews.llvm.org/D50639 llvm-svn: 340267
2018-08-21 18:59:50 +08:00
# CHECK-NEXT: L2_loadri_io $r1, 0, debug-location [[DL1]]
[mir] Serialize DILocation inline when not possible to use a metadata reference Summary: Sometimes MIR-level passes create DILocations that were not present in the LLVM-IR. For example, it may merge two DILocations together to produce a DILocation that points to line 0. Previously, the address of these DILocations were printed which prevented the MIR from being read back into LLVM. With this patch, DILocations will use metadata references where possible and fall back on serializing them inline like so: MOV32mr %stack.0.x.addr, 1, _, 0, _, %0, debug-location !DILocation(line: 1, scope: !15) Reviewers: aprantl, vsk, arphaman Reviewed By: aprantl Subscribers: probinson, llvm-commits Tags: #debug-info Differential Revision: https://reviews.llvm.org/D55243 llvm-svn: 349035
2018-12-13 22:25:27 +08:00
# CHECK-NEXT: L2_loadri_io $r1, 0, debug-location [[DL2:!DILocation([^)]+)]]
Change how finalizeBundle selects debug location for the BUNDLE instruction Summary: Previously a BUNDLE instruction inherited the DebugLoc from the first instruction in the bundle, even if that DebugLoc had no DILocation. With this commit this is changed into selecting the first DebugLoc that has a DILocation, by searching among the bundled instructions. The idea is to reduce amount of bundles that are lacking debug locations. Reviewers: #debug-info, JDevlieghere Reviewed By: JDevlieghere Subscribers: JDevlieghere, mattd, llvm-commits Differential Revision: https://reviews.llvm.org/D50639 llvm-svn: 340267
2018-08-21 18:59:50 +08:00
# CHECK: BUNDLE
# CHECK-SAME: debug-location [[DL1]]
# CHECK-NEXT: L2_loadri_io $r1, 0{{$}}
# CHECK-NEXT: L2_loadri_io $r1, 0, debug-location [[DL1]]
# CHECK: BUNDLE
# CHECK-SAME: debug-location [[DL2]]
# CHECK-NEXT: L2_loadri_io $r1, 0, debug-location [[DL2]]
# No debug-location printouts expected for the last bundle
# CHECK-NOT: debug-location