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86 lines
3.3 KiB
86 lines
3.3 KiB
# We do not support the call site info for the target now, so we use the experimental option (-emit-call-site-info -debug-entry-values).
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# RUN: llc -emit-call-site-info -debug-entry-values -start-after=livedebugvalues -o - %s | FileCheck %s
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# This test would previously trigger an assertion when trying to describe the
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# call site value for callee()'s float parameter.
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#
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# Please note that at the time of creating this test the SystemZ target did not
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# support call site information, so the "callSites" array has been manually
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# added. For now, verify that we don't crash, and that no (invalid) call site
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# parameter entry is emitted, but later on when call site information is added
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# to the target the LZER instruction should be properly described.
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# CHECK-NOT: DW_TAG_GNU_call_site_parameter
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# Based on the following C reproducer:
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#
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# extern void callee(float);
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# int caller() {
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# callee(0);
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# return 0;
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# }
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--- |
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target datalayout = "E-m:e-i1:8:16-i8:8:16-i64:64-f128:64-a:8:16-n32:64"
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target triple = "systemz"
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; Function Attrs: nounwind
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define signext i32 @caller() !dbg !12 {
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entry:
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tail call void @callee(float 0.000000e+00), !dbg !16
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ret i32 0, !dbg !17
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}
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declare !dbg !4 void @callee(float)
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!8, !9, !10}
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!llvm.ident = !{!11}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 10.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !3, nameTableKind: None)
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!1 = !DIFile(filename: "systemz-lzer.c", directory: "/")
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!2 = !{}
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!3 = !{!4}
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!4 = !DISubprogram(name: "callee", scope: !1, file: !1, line: 1, type: !5, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !2)
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!5 = !DISubroutineType(types: !6)
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!6 = !{null, !7}
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!7 = !DIBasicType(name: "float", size: 32, encoding: DW_ATE_float)
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!8 = !{i32 2, !"Dwarf Version", i32 4}
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!9 = !{i32 2, !"Debug Info Version", i32 3}
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!10 = !{i32 1, !"wchar_size", i32 4}
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!11 = !{!"clang version 10.0.0"}
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!12 = distinct !DISubprogram(name: "caller", scope: !1, file: !1, line: 2, type: !13, scopeLine: 2, flags: DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !2)
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!13 = !DISubroutineType(types: !14)
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!14 = !{!15}
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!15 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!16 = !DILocation(line: 3, scope: !12)
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!17 = !DILocation(line: 4, scope: !12)
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...
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---
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name: caller
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tracksRegLiveness: true
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callSites:
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- { bb: 0, offset: 9, fwdArgRegs:
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- { arg: 0, reg: '$f0s' } }
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body: |
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bb.0.entry:
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liveins: $r11d, $r15d, $r14d
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STMG killed $r11d, killed $r15d, $r15d, 88, implicit killed $r14d
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CFI_INSTRUCTION offset $r11d, -72
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CFI_INSTRUCTION offset $r14d, -48
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CFI_INSTRUCTION offset $r15d, -40
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$r15d = AGHI $r15d, -160, implicit-def dead $cc
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CFI_INSTRUCTION def_cfa_offset 320
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$r11d = LGR $r15d
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CFI_INSTRUCTION def_cfa_register $r11d
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renamable $f0s = LZER
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CallBRASL @callee, $f0s, csr_systemz, implicit-def dead $r14d, implicit-def dead $cc, implicit $fpc, debug-location !16
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$r2d = LGHI 0, debug-location !17
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$r11d, $r15d = LMG $r11d, 248, implicit-def $r14d, debug-location !17
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Return implicit killed $r2d, debug-location !17
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...
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