| # 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). |
| |
| # RUN: llc -emit-call-site-info -debug-entry-values -start-after=livedebugvalues -o - %s | FileCheck %s |
| |
| # This test would previously trigger an assertion when trying to describe the |
| # call site value for callee()'s float parameter. |
| # |
| # Please note that at the time of creating this test the SystemZ target did not |
| # support call site information, so the "callSites" array has been manually |
| # added. For now, verify that we don't crash, and that no (invalid) call site |
| # parameter entry is emitted, but later on when call site information is added |
| # to the target the LZER instruction should be properly described. |
| |
| # CHECK-NOT: DW_TAG_GNU_call_site_parameter |
| |
| # Based on the following C reproducer: |
| # |
| # extern void callee(float); |
| # int caller() { |
| # callee(0); |
| # return 0; |
| # } |
| |
| --- | |
| target datalayout = "E-m:e-i1:8:16-i8:8:16-i64:64-f128:64-a:8:16-n32:64" |
| target triple = "systemz" |
| |
| ; Function Attrs: nounwind |
| define signext i32 @caller() !dbg !12 { |
| entry: |
| tail call void @callee(float 0.000000e+00), !dbg !16 |
| ret i32 0, !dbg !17 |
| } |
| |
| declare !dbg !4 void @callee(float) |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!8, !9, !10} |
| !llvm.ident = !{!11} |
| |
| !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) |
| !1 = !DIFile(filename: "systemz-lzer.c", directory: "/") |
| !2 = !{} |
| !3 = !{!4} |
| !4 = !DISubprogram(name: "callee", scope: !1, file: !1, line: 1, type: !5, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !2) |
| !5 = !DISubroutineType(types: !6) |
| !6 = !{null, !7} |
| !7 = !DIBasicType(name: "float", size: 32, encoding: DW_ATE_float) |
| !8 = !{i32 2, !"Dwarf Version", i32 4} |
| !9 = !{i32 2, !"Debug Info Version", i32 3} |
| !10 = !{i32 1, !"wchar_size", i32 4} |
| !11 = !{!"clang version 10.0.0"} |
| !12 = distinct !DISubprogram(name: "caller", scope: !1, file: !1, line: 2, type: !13, scopeLine: 2, flags: DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !2) |
| !13 = !DISubroutineType(types: !14) |
| !14 = !{!15} |
| !15 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) |
| !16 = !DILocation(line: 3, scope: !12) |
| !17 = !DILocation(line: 4, scope: !12) |
| |
| ... |
| --- |
| name: caller |
| tracksRegLiveness: true |
| callSites: |
| - { bb: 0, offset: 9, fwdArgRegs: |
| - { arg: 0, reg: '$f0s' } } |
| body: | |
| bb.0.entry: |
| liveins: $r11d, $r15d, $r14d |
| |
| STMG killed $r11d, killed $r15d, $r15d, 88, implicit killed $r14d |
| CFI_INSTRUCTION offset $r11d, -72 |
| CFI_INSTRUCTION offset $r14d, -48 |
| CFI_INSTRUCTION offset $r15d, -40 |
| $r15d = AGHI $r15d, -160, implicit-def dead $cc |
| CFI_INSTRUCTION def_cfa_offset 320 |
| $r11d = LGR $r15d |
| CFI_INSTRUCTION def_cfa_register $r11d |
| renamable $f0s = LZER |
| CallBRASL @callee, $f0s, csr_systemz_elf, implicit-def dead $r14d, implicit-def dead $cc, implicit $fpc, debug-location !16 |
| $r2d = LGHI 0, debug-location !17 |
| $r11d, $r15d = LMG $r11d, 248, implicit-def $r14d, debug-location !17 |
| Return implicit killed $r2d, debug-location !17 |
| |
| ... |