| ; RUN: llc < %s | FileCheck %s --check-prefix=ASM |
| ; RUN: llc -filetype=obj < %s | llvm-readobj -codeview | FileCheck %s --check-prefix=OBJ |
| |
| ; PR38857 |
| |
| ; This test case is identical to the fpo-realign-vframe.ll test, except it uses |
| ; two callee-saved registers. |
| |
| ; Match the prologue for the .cv_fpo* directives. |
| ; ASM-LABEL: _realign_with_csrs: |
| ; ASM: .cv_fpo_proc _realign_with_csrs 0 |
| ; ASM: # %bb.0: # %entry |
| ; ASM: pushl %ebp |
| ; ASM: .cv_fpo_pushreg %ebp |
| ; ASM: movl %esp, %ebp |
| ; ASM: .cv_fpo_setframe %ebp |
| ; ASM: andl $-8, %esp |
| ; ASM: .cv_fpo_stackalign 8 |
| ; FIXME: Why 24 bytes? We only need 12 bytes of data. |
| ; ASM: subl $24, %esp |
| ; ASM: .cv_fpo_stackalloc 24 |
| ; ASM: .cv_fpo_endprologue |
| |
| ; 'x' should be EBP-relative, 'a' and 'force_alignment' ESP relative. |
| ; ASM: calll _getval |
| ; ASM-DAG: leal 8(%esp), %[[LEA_DBL:[^ ]*]] |
| ; ASM-DAG: leal 4(%esp), %[[LEA_A:[^ ]*]] |
| ; ASM: pushl %[[LEA_DBL]] |
| ; ASM: pushl %[[LEA_A]] |
| ; ASM: pushl %[[LEA_A]] |
| ; ASM: calll _usevals |
| ; ASM: addl $12, %esp |
| |
| ; OBJ: Subsection [ |
| ; OBJ: SubSectionType: Symbols (0xF1) |
| ; OBJ: ] |
| ; OBJ: Subsection [ |
| ; OBJ: SubSectionType: FrameData (0xF5) |
| ; Really, the only important FrameFunc is the last one. |
| ; OBJ: FrameData { |
| ; OBJ: } |
| ; OBJ: FrameData { |
| ; OBJ: } |
| ; OBJ: FrameData { |
| ; OBJ: } |
| ; OBJ: FrameData { |
| ; OBJ: } |
| ; OBJ: FrameData { |
| ; OBJ: FrameFunc [ |
| ; OBJ-NEXT: $T1 $ebp 4 + = |
| ; OBJ-NEXT: $T0 $T1 8 - 8 @ = |
| ; OBJ-NEXT: $eip $T1 ^ = |
| ; OBJ-NEXT: $esp $T1 4 + = |
| ; OBJ-NEXT: $ebp $T1 4 - ^ = |
| ; OBJ-NEXT: $esi $T1 8 - ^ = |
| ; OBJ-NEXT: ] |
| ; OBJ: } |
| ; OBJ: ] |
| ; OBJ: Subsection [ |
| ; OBJ: SubSectionType: Symbols (0xF1) |
| ; OBJ: GlobalProcIdSym { |
| ; OBJ: Kind: S_GPROC32_ID (0x1147) |
| ; OBJ: DisplayName: realign_with_csrs |
| ; OBJ: LinkageName: _realign_with_csrs |
| ; OBJ: } |
| ; The frame register for locals should be VFRAME, and EBP for parameters. |
| ; OBJ: FrameProcSym { |
| ; OBJ: Kind: S_FRAMEPROC (0x1012) |
| ; OBJ: TotalFrameBytes: 0x18 |
| ; OBJ: LocalFramePtrReg: VFRAME (0x7536) |
| ; OBJ: ParamFramePtrReg: EBP (0x16) |
| ; OBJ: } |
| ; ESP is VFRAME - 24, ESP offset of 'a' is 4, so -20. |
| ; OBJ: LocalSym { |
| ; OBJ: Kind: S_LOCAL (0x113E) |
| ; OBJ: Type: int (0x74) |
| ; OBJ: Flags [ (0x0) |
| ; OBJ: ] |
| ; OBJ: VarName: a |
| ; OBJ: } |
| ; OBJ: DefRangeFramePointerRelSym { |
| ; OBJ: Kind: S_DEFRANGE_FRAMEPOINTER_REL (0x1142) |
| ; OBJ: Offset: -20 |
| ; OBJ: } |
| ; ESP is VFRAME - 16, ESP offset of 'force_alignment' is 8, so -8. |
| ; OBJ: LocalSym { |
| ; OBJ: Kind: S_LOCAL (0x113E) |
| ; OBJ: Type: double (0x41) |
| ; OBJ: Flags [ (0x0) |
| ; OBJ: ] |
| ; OBJ: VarName: force_alignment |
| ; OBJ: } |
| ; OBJ: DefRangeFramePointerRelSym { |
| ; OBJ: Kind: S_DEFRANGE_FRAMEPOINTER_REL (0x1142) |
| ; OBJ: Offset: -16 |
| ; OBJ: } |
| ; OBJ: ProcEnd { |
| ; OBJ: Kind: S_PROC_ID_END (0x114F) |
| ; OBJ: } |
| ; OBJ: ] |
| |
| ; ModuleID = 't.c' |
| source_filename = "t.c" |
| target datalayout = "e-m:x-p:32:32-i64:64-f80:32-n8:16:32-a:0:32-S32" |
| target triple = "i386-pc-windows-msvc19.14.26433" |
| |
| ; Function Attrs: nounwind |
| define dso_local i32 @realign_with_csrs() local_unnamed_addr #0 !dbg !8 { |
| entry: |
| %a = alloca i32, align 4 |
| %force_alignment = alloca double, align 8 |
| %0 = bitcast i32* %a to i8*, !dbg !22 |
| call void @llvm.dbg.declare(metadata i32* %a, metadata !14, metadata !DIExpression()), !dbg !22 |
| %csr1 = tail call i32 @getval() #4 |
| %call = tail call i32 @getval() #4, !dbg !22 |
| store i32 %call, i32* %a, align 4, !dbg !22, !tbaa !17 |
| %1 = bitcast double* %force_alignment to i8*, !dbg !23 |
| call void @llvm.lifetime.start.p0i8(i64 8, i8* nonnull %1) #4, !dbg !23 |
| call void @llvm.dbg.declare(metadata double* %force_alignment, metadata !15, metadata !DIExpression()), !dbg !23 |
| store double 4.200000e-01, double* %force_alignment, align 8, !dbg !23, !tbaa !24 |
| call void @usevals(i32* nonnull %a, i32* nonnull %a, double* nonnull %force_alignment) #4, !dbg !26 |
| call void @usecsrs(i32 %csr1, i32 %csr1) |
| ret i32 0 |
| } |
| |
| ; Function Attrs: nounwind readnone speculatable |
| declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 |
| |
| ; Function Attrs: argmemonly nounwind |
| declare void @llvm.lifetime.start.p0i8(i64, i8* nocapture) #2 |
| |
| declare dso_local i32 @getval() local_unnamed_addr #3 |
| |
| declare dso_local void @usevals(i32*, i32*, double*) local_unnamed_addr #3 |
| |
| declare dso_local void @usecsrs(i32, i32) local_unnamed_addr #3 |
| |
| ; Function Attrs: argmemonly nounwind |
| declare void @llvm.lifetime.end.p0i8(i64, i8* nocapture) #2 |
| |
| attributes #0 = { nounwind "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="pentium4" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" } |
| attributes #1 = { nounwind readnone speculatable } |
| attributes #2 = { argmemonly nounwind } |
| attributes #3 = { "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="pentium4" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" } |
| attributes #4 = { nounwind } |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!3, !4, !5, !6} |
| !llvm.ident = !{!7} |
| |
| !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 8.0.0 ", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, nameTableKind: None) |
| !1 = !DIFile(filename: "t.c", directory: "C:\5Csrc\5Cllvm-project\5Cbuild", checksumkind: CSK_MD5, checksum: "a646950309d5d01d8087fc10fea33941") |
| !2 = !{} |
| !3 = !{i32 1, !"NumRegisterParameters", i32 0} |
| !4 = !{i32 2, !"CodeView", i32 1} |
| !5 = !{i32 2, !"Debug Info Version", i32 3} |
| !6 = !{i32 1, !"wchar_size", i32 2} |
| !7 = !{!"clang version 8.0.0 "} |
| !8 = distinct !DISubprogram(name: "realign_with_csrs", scope: !1, file: !1, line: 3, type: !9, isLocal: false, isDefinition: true, scopeLine: 3, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !12) |
| !9 = !DISubroutineType(types: !10) |
| !10 = !{!11, !11} |
| !11 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) |
| !12 = !{!13, !14, !15} |
| !13 = !DILocalVariable(name: "x", arg: 1, scope: !8, file: !1, line: 3, type: !11) |
| !14 = !DILocalVariable(name: "a", scope: !8, file: !1, line: 4, type: !11) |
| !15 = !DILocalVariable(name: "force_alignment", scope: !8, file: !1, line: 5, type: !16, align: 64) |
| !16 = !DIBasicType(name: "double", size: 64, encoding: DW_ATE_float) |
| !17 = !{!18, !18, i64 0} |
| !18 = !{!"int", !19, i64 0} |
| !19 = !{!"omnipotent char", !20, i64 0} |
| !20 = !{!"Simple C/C++ TBAA"} |
| !21 = !DILocation(line: 3, scope: !8) |
| !22 = !DILocation(line: 4, scope: !8) |
| !23 = !DILocation(line: 5, scope: !8) |
| !24 = !{!25, !25, i64 0} |
| !25 = !{!"double", !19, i64 0} |
| !26 = !DILocation(line: 6, scope: !8) |
| !27 = !DILocation(line: 7, scope: !8) |
| !28 = !DILocation(line: 8, scope: !8) |
