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[WebAssembly] Fix updating/moving DBG_VALUEs in RegStackify Summary: As described in PR40209, there can be issues in DBG_VALUEs handling when multiple defs present in a BB. This patch adds logic for detection of related to def DBG_VALUEs and localizes register update and movement to found DBG_VALUEs. Reviewers: aheejin Subscribers: mgorny, dschuff, sbc100, jgravelle-google, sunfish, llvm-commits Differential Revision: https://reviews.llvm.org/D56401 llvm-svn: 351216
2019-01-16 02:14:12 +08:00
# RUN: llc < %s -run-pass=wasm-reg-stackify -x=mir 2>&1 | FileCheck %s
# CHECK: body:
LiveIntervals: Split live intervals on multiple dead defs This is a follow-up to D67448. Split live intervals with multiple dead defs during the initial execution of the live interval analysis, but do it outside of the function createAndComputeVirtRegInterval. Differential Revision: https://reviews.llvm.org/D68666
2019-10-30 21:21:27 +08:00
# CHECK: dead %3:i32 = I32_WRAP_I64 %0,
# CHECK-NEXT: DBG_VALUE %1:i32
[WebAssembly] Replace all calls with generalized multivalue calls Summary: Extends the multivalue call infrastructure to tail calls, removes all legacy calls specialized for particular result types, and removes the CallIndirectFixup pass, since all indirect call arguments are now fixed up directly in the post-insertion hook. In order to keep supporting pretty-printed defs and uses in test expectations, MCInstLower now inserts an immediate containing the number of defs for each call and call_indirect. The InstPrinter is updated to query this immediate if it is present and determine which MCOperands are defs and uses accordingly. Depends on D72902. Reviewers: aheejin Subscribers: dschuff, mgorny, sbc100, jgravelle-google, hiraditya, sunfish, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D74192
2020-02-07 08:29:59 +08:00
# CHECK-NEXT: dead %2:i32 = CALL @bar,
LiveIntervals: Split live intervals on multiple dead defs This is a follow-up to D67448. Split live intervals with multiple dead defs during the initial execution of the live interval analysis, but do it outside of the function createAndComputeVirtRegInterval. Differential Revision: https://reviews.llvm.org/D68666
2019-10-30 21:21:27 +08:00
# CHECK-NEXT: DBG_VALUE %1:i32,
[WebAssembly] Replace all calls with generalized multivalue calls Summary: Extends the multivalue call infrastructure to tail calls, removes all legacy calls specialized for particular result types, and removes the CallIndirectFixup pass, since all indirect call arguments are now fixed up directly in the post-insertion hook. In order to keep supporting pretty-printed defs and uses in test expectations, MCInstLower now inserts an immediate containing the number of defs for each call and call_indirect. The InstPrinter is updated to query this immediate if it is present and determine which MCOperands are defs and uses accordingly. Depends on D72902. Reviewers: aheejin Subscribers: dschuff, mgorny, sbc100, jgravelle-google, hiraditya, sunfish, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D74192
2020-02-07 08:29:59 +08:00
# CHECK-NEXT: %[[NEWREG:.*]]:i32 = CALL @bar,
[WebAssembly] Fix updating/moving DBG_VALUEs in RegStackify Summary: As described in PR40209, there can be issues in DBG_VALUEs handling when multiple defs present in a BB. This patch adds logic for detection of related to def DBG_VALUEs and localizes register update and movement to found DBG_VALUEs. Reviewers: aheejin Subscribers: mgorny, dschuff, sbc100, jgravelle-google, sunfish, llvm-commits Differential Revision: https://reviews.llvm.org/D56401 llvm-svn: 351216
2019-01-16 02:14:12 +08:00
# CHECK-NEXT: DBG_VALUE %[[NEWREG]],
[WebAssembly] Replace all calls with generalized multivalue calls Summary: Extends the multivalue call infrastructure to tail calls, removes all legacy calls specialized for particular result types, and removes the CallIndirectFixup pass, since all indirect call arguments are now fixed up directly in the post-insertion hook. In order to keep supporting pretty-printed defs and uses in test expectations, MCInstLower now inserts an immediate containing the number of defs for each call and call_indirect. The InstPrinter is updated to query this immediate if it is present and determine which MCOperands are defs and uses accordingly. Depends on D72902. Reviewers: aheejin Subscribers: dschuff, mgorny, sbc100, jgravelle-google, hiraditya, sunfish, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D74192
2020-02-07 08:29:59 +08:00
# CHECK-NEXT: CALL @foo, %[[NEWREG]],
[WebAssembly] Fix updating/moving DBG_VALUEs in RegStackify Summary: As described in PR40209, there can be issues in DBG_VALUEs handling when multiple defs present in a BB. This patch adds logic for detection of related to def DBG_VALUEs and localizes register update and movement to found DBG_VALUEs. Reviewers: aheejin Subscribers: mgorny, dschuff, sbc100, jgravelle-google, sunfish, llvm-commits Differential Revision: https://reviews.llvm.org/D56401 llvm-svn: 351216
2019-01-16 02:14:12 +08:00
--- |
target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128"
target triple = "wasm32-unknown-unknown"
declare void @foo(i32)
declare i32 @bar()
define void @test(i64 %arg) {
unreachable
}
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!4}
!0 = distinct !DICompileUnit(language: DW_LANG_Rust, file: !2, producer: "clang LLVM (rustc version 1.30.0-dev)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !1, globals: !1)
!1 = !{}
!2 = !DIFile(filename: "<unknown>", directory: "")
!3 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "&str", file: !2, size: 64, align: 32, elements: !{}, identifier: "111094d970b097647de579f9c509ef08")
!4 = !{i32 2, !"Debug Info Version", i32 3}
!5 = distinct !DILexicalBlock(scope: !6, file: !2, line: 357, column: 8)
!6 = distinct !DISubprogram(name: "testfoo", linkageName: "_testba", scope: !7, file: !2, line: 353, type: !8, isLocal: true, isDefinition: true, scopeLine: 353, flags: DIFlagPrototyped, isOptimized: true, unit: !0, templateParams: !1, retainedNodes: !9)
!7 = !DINamespace(name: "ptr", scope: null)
!8 = !DISubroutineType(types: !1)
!9 = !{!10}
!10 = !DILocalVariable(name: "val0", scope: !5, file: !2, line: 357, type: !3, align: 4)
!11 = !DILocalVariable(name: "val1", scope: !5, file: !2, line: 358, type: !3, align: 4)
!12 = !DILocalVariable(name: "val2", scope: !5, file: !2, line: 359, type: !3, align: 4)
!13 = !DILocation(line: 357, column: 12, scope: !5)
!14 = !DILocation(line: 358, column: 12, scope: !5)
!15 = !DILocation(line: 359, column: 12, scope: !5)
---
name: test
liveins:
- { reg: '$arguments' }
tracksRegLiveness: true
body: |
bb.0:
liveins: $arguments
%0:i64 = ARGUMENT_i64 0, implicit $arguments
%1:i32 = I32_WRAP_I64 %0:i64, implicit-def dead $arguments
DBG_VALUE %1:i32, $noreg, !10, !DIExpression(), debug-location !13; <unknown>:357:12 line no:357
[WebAssembly] Replace all calls with generalized multivalue calls Summary: Extends the multivalue call infrastructure to tail calls, removes all legacy calls specialized for particular result types, and removes the CallIndirectFixup pass, since all indirect call arguments are now fixed up directly in the post-insertion hook. In order to keep supporting pretty-printed defs and uses in test expectations, MCInstLower now inserts an immediate containing the number of defs for each call and call_indirect. The InstPrinter is updated to query this immediate if it is present and determine which MCOperands are defs and uses accordingly. Depends on D72902. Reviewers: aheejin Subscribers: dschuff, mgorny, sbc100, jgravelle-google, hiraditya, sunfish, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D74192
2020-02-07 08:29:59 +08:00
%1:i32 = CALL @bar, implicit-def dead $arguments, implicit $sp32, implicit $sp64
[WebAssembly] Fix updating/moving DBG_VALUEs in RegStackify Summary: As described in PR40209, there can be issues in DBG_VALUEs handling when multiple defs present in a BB. This patch adds logic for detection of related to def DBG_VALUEs and localizes register update and movement to found DBG_VALUEs. Reviewers: aheejin Subscribers: mgorny, dschuff, sbc100, jgravelle-google, sunfish, llvm-commits Differential Revision: https://reviews.llvm.org/D56401 llvm-svn: 351216
2019-01-16 02:14:12 +08:00
DBG_VALUE %1:i32, $noreg, !11, !DIExpression(), debug-location !14; <unknown>:357:12 line no:357
[WebAssembly] Replace all calls with generalized multivalue calls Summary: Extends the multivalue call infrastructure to tail calls, removes all legacy calls specialized for particular result types, and removes the CallIndirectFixup pass, since all indirect call arguments are now fixed up directly in the post-insertion hook. In order to keep supporting pretty-printed defs and uses in test expectations, MCInstLower now inserts an immediate containing the number of defs for each call and call_indirect. The InstPrinter is updated to query this immediate if it is present and determine which MCOperands are defs and uses accordingly. Depends on D72902. Reviewers: aheejin Subscribers: dschuff, mgorny, sbc100, jgravelle-google, hiraditya, sunfish, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D74192
2020-02-07 08:29:59 +08:00
%1:i32 = CALL @bar, implicit-def dead $arguments, implicit $sp32, implicit $sp64
[WebAssembly] Fix updating/moving DBG_VALUEs in RegStackify Summary: As described in PR40209, there can be issues in DBG_VALUEs handling when multiple defs present in a BB. This patch adds logic for detection of related to def DBG_VALUEs and localizes register update and movement to found DBG_VALUEs. Reviewers: aheejin Subscribers: mgorny, dschuff, sbc100, jgravelle-google, sunfish, llvm-commits Differential Revision: https://reviews.llvm.org/D56401 llvm-svn: 351216
2019-01-16 02:14:12 +08:00
DBG_VALUE %1:i32, $noreg, !12, !DIExpression(), debug-location !15; <unknown>:357:12 line no:357
[WebAssembly] Replace all calls with generalized multivalue calls Summary: Extends the multivalue call infrastructure to tail calls, removes all legacy calls specialized for particular result types, and removes the CallIndirectFixup pass, since all indirect call arguments are now fixed up directly in the post-insertion hook. In order to keep supporting pretty-printed defs and uses in test expectations, MCInstLower now inserts an immediate containing the number of defs for each call and call_indirect. The InstPrinter is updated to query this immediate if it is present and determine which MCOperands are defs and uses accordingly. Depends on D72902. Reviewers: aheejin Subscribers: dschuff, mgorny, sbc100, jgravelle-google, hiraditya, sunfish, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D74192
2020-02-07 08:29:59 +08:00
CALL @foo, %1:i32, implicit-def dead $arguments, implicit $sp32, implicit $sp64
[WebAssembly] Make returns variadic Summary: This is necessary and sufficient to get simple cases of multiple return working with multivalue enabled. More complex cases will require block and loop signatures to be generalized to potentially be type indices as well. Reviewers: aheejin, dschuff Subscribers: sbc100, jgravelle-google, hiraditya, sunfish, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D68684 llvm-svn: 374235
2019-10-10 05:42:08 +08:00
RETURN implicit-def dead $arguments
[WebAssembly] Fix updating/moving DBG_VALUEs in RegStackify Summary: As described in PR40209, there can be issues in DBG_VALUEs handling when multiple defs present in a BB. This patch adds logic for detection of related to def DBG_VALUEs and localizes register update and movement to found DBG_VALUEs. Reviewers: aheejin Subscribers: mgorny, dschuff, sbc100, jgravelle-google, sunfish, llvm-commits Differential Revision: https://reviews.llvm.org/D56401 llvm-svn: 351216
2019-01-16 02:14:12 +08:00
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