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|
# RUN: llc -mtriple=x86_64-pc-linux %s -run-pass=branch-folder -o - | FileCheck %s
--- |
; ModuleID = 'case4.c'
source_filename = "case4.c"
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
@q1 = dso_local local_unnamed_addr global i32 1, align 4
@q2 = dso_local local_unnamed_addr global i32 6, align 4
@g1 = dso_local local_unnamed_addr global i32 0, align 4
; Function Attrs: nounwind uwtable
define dso_local i32 @merge_inl_and_non_inl() local_unnamed_addr #0 !dbg !9 {
entry:
%0 = load i32, ptr @q1, align 4, !dbg !12, !tbaa !13
%cmp.i = icmp sgt i32 %0, 3, !dbg !17
br i1 %cmp.i, label %if.then.i, label %inl5.exit, !dbg !20
if.then.i: ; preds = %entry
tail call void @abort() #2, !dbg !21
unreachable, !dbg !21
inl5.exit: ; preds = %entry
%mul.i = mul nsw i32 %0, 152, !dbg !22
%add.i = add nsw i32 %mul.i, 100, !dbg !23
store i32 %add.i, ptr @g1, align 4, !dbg !24, !tbaa !13
%1 = load i32, ptr @q2, align 4, !dbg !25, !tbaa !13
%cmp = icmp sgt i32 %1, 5, !dbg !26
br i1 %cmp, label %if.then, label %if.end, !dbg !25
if.then: ; preds = %inl5.exit
tail call void @abort() #2, !dbg !27
unreachable, !dbg !27
if.end: ; preds = %inl5.exit
ret i32 0, !dbg !28
}
; Function Attrs: noreturn nounwind
declare !dbg !29 void @abort() local_unnamed_addr #1
attributes #0 = { nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { noreturn nounwind "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #2 = { noreturn nounwind }
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!2, !3, !4, !5, !6, !7}
!llvm.ident = !{!8}
!0 = distinct !DICompileUnit(language: DW_LANG_C11, file: !1, producer: "clang version 16.0.0.prerel", isOptimized: true, runtimeVersion: 0, emissionKind: LineTablesOnly, splitDebugInlining: false, nameTableKind: None)
!1 = !DIFile(filename: "case4.c", directory: "/", checksumkind: CSK_MD5, checksum: "6ffe3d1878ac05f79e8c3a30566e1b2a")
!2 = !{i32 7, !"Dwarf Version", i32 5}
!3 = !{i32 2, !"Debug Info Version", i32 3}
!4 = !{i32 1, !"wchar_size", i32 4}
!5 = !{i32 8, !"PIC Level", i32 2}
!6 = !{i32 7, !"PIE Level", i32 2}
!7 = !{i32 7, !"uwtable", i32 2}
!8 = !{!"clang version 16.0.0.prerel"}
!9 = distinct !DISubprogram(name: "merge_inl_and_non_inl", scope: !1, file: !1, line: 12, type: !10, scopeLine: 13, flags: DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !11)
!10 = !DISubroutineType(types: !11)
!11 = !{}
!12 = !DILocation(line: 14, column: 13, scope: !9)
!13 = !{!14, !14, i64 0}
!14 = !{!"int", !15, i64 0}
!15 = !{!"omnipotent char", !16, i64 0}
!16 = !{!"Simple C/C++ TBAA"}
!17 = !DILocation(line: 4, column: 9, scope: !18, inlinedAt: !19)
!18 = distinct !DISubprogram(name: "inl5", scope: !1, file: !1, line: 3, type: !10, scopeLine: 3, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagLocalToUnit | DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !11)
!19 = distinct !DILocation(line: 14, column: 8, scope: !9)
!20 = !DILocation(line: 4, column: 7, scope: !18, inlinedAt: !19)
!21 = !DILocation(line: 5, column: 5, scope: !18, inlinedAt: !19)
!22 = !DILocation(line: 6, column: 12, scope: !18, inlinedAt: !19)
!23 = !DILocation(line: 6, column: 18, scope: !18, inlinedAt: !19)
!24 = !DILocation(line: 14, column: 6, scope: !9)
!25 = !DILocation(line: 15, column: 7, scope: !9)
!26 = !DILocation(line: 15, column: 10, scope: !9)
!27 = !DILocation(line: 16, column: 5, scope: !9)
!28 = !DILocation(line: 17, column: 3, scope: !9)
!29 = !DISubprogram(name: "abort", scope: !30, file: !30, line: 514, type: !10, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !11)
!30 = !DIFile(filename: "/usr/include/stdlib.h", directory: "", checksumkind: CSK_MD5, checksum: "f7a1412d75d9e3df251dfc21b02d59ef")
...
---
name: merge_inl_and_non_inl
alignment: 16
tracksRegLiveness: true
tracksDebugUserValues: true
frameInfo:
stackSize: 8
offsetAdjustment: -8
maxAlignment: 1
adjustsStack: true
hasCalls: true
maxCallFrameSize: 0
machineFunctionInfo: {}
body: |
bb.0.entry:
successors: %bb.1(0x00000800), %bb.2(0x7ffff800)
frame-setup PUSH64r undef $rax, implicit-def $rsp, implicit $rsp
frame-setup CFI_INSTRUCTION def_cfa_offset 16
renamable $eax = MOV32rm $rip, 1, $noreg, @q1, $noreg, debug-location !12 :: (dereferenceable load (s32) from @q1, !tbaa !13)
CMP32ri renamable $eax, 4, implicit-def $eflags, debug-location !17
JCC_1 %bb.2, 12, implicit killed $eflags, debug-location !20
JMP_1 %bb.1, debug-location !20
bb.1.if.then.i:
successors:
CALL64pcrel32 target-flags(x86-plt) @abort, csr_64, implicit $rsp, implicit $ssp, implicit-def $rsp, implicit-def $ssp, debug-location !21
bb.2.inl5.exit:
successors: %bb.3(0x00000800), %bb.4(0x7ffff800)
liveins: $eax
renamable $eax = nsw IMUL32rri killed renamable $eax, 152, implicit-def dead $eflags, debug-location !22
renamable $eax = nsw ADD32ri8 killed renamable $eax, 100, implicit-def dead $eflags, debug-location !23
MOV32mr $rip, 1, $noreg, @g1, $noreg, killed renamable $eax, debug-location !24 :: (store (s32) into @g1, !tbaa !13)
CMP32mi $rip, 1, $noreg, @q2, $noreg, 6, implicit-def $eflags, debug-location !26 :: (dereferenceable load (s32) from @q2, !tbaa !13)
JCC_1 %bb.4, 12, implicit killed $eflags, debug-location !25
JMP_1 %bb.3, debug-location !25
bb.3.if.then:
successors:
CALL64pcrel32 target-flags(x86-plt) @abort, csr_64, implicit $rsp, implicit $ssp, implicit-def $rsp, implicit-def $ssp, debug-location !27
bb.4.if.end:
$eax = MOV32r0 implicit-def dead $eflags, debug-location !28
$rcx = frame-destroy POP64r implicit-def $rsp, implicit $rsp, debug-location !28
frame-destroy CFI_INSTRUCTION def_cfa_offset 8, debug-location !28
RET 0, $eax, debug-location !28
...
# In this case we get a single abort call originating from an inlined instance
# of inl5() and the function that is inlined in:
#
# 1 | #include <stdlib.h>
# 2 |
# 3 | static inline int inl5(int q, int n) {
# 4 | if (q > 3)
# 5 | abort();
# 6 | return q * 152 + n;
# 7 | }
# 8 |
# 9 | int q1 = 1, q2 = 6;
# 10 | int g1;
# 11 |
# 12 | int merge_inl_and_non_inl()
# 13 | {
# 14 | g1 = inl5(q1, 100);
# 15 | if (q2 > 5)
# 16 | abort();
# 17 | return 0;
# 18 | }
#
# We should produce a location at line 0 in the most common scope,
# merge_inl_and_non_inl(), without any inline information.
# CHECK: [[INLINER:![0-9]+]] = distinct !DISubprogram(name: "merge_inl_and_non_inl"
# CHECK-NOT: CALL64pcrel32
# CHECK: CALL64pcrel32 target-flags(x86-plt) @abort, {{.*}} debug-location !DILocation(line: 0, scope: [[INLINER]])
# CHECK-NOT: CALL64pcrel32
|
