| # 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 |
