44feacc736
After landing the globalization optimizations, the precense of globalization on the device that was not put in shared or stack memory is a failed optimization with performance consequences so it should indicate a missed remark. Reviewed By: jdoerfert Differential Revision: https://reviews.llvm.org/D104735
43 lines
1.6 KiB
LLVM
43 lines
1.6 KiB
LLVM
; RUN: opt -passes=openmp-opt -pass-remarks-missed=openmp-opt -disable-output < %s 2>&1 | FileCheck %s
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; ModuleID = 'declare_target_codegen_globalization.cpp'
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source_filename = "declare_target_codegen_globalization.cpp"
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target datalayout = "e-i64:64-i128:128-v16:16-v32:32-n16:32:64"
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target triple = "nvptx64"
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; CHECK: remark: globalization_remarks.c:5:7: Found thread data sharing on the GPU. Expect degraded performance due to data globalization.
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@S = external local_unnamed_addr global i8*
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define void @foo() {
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entry:
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%0 = call i8* @__kmpc_alloc_shared(i64 4), !dbg !8
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%x_on_stack = bitcast i8* %0 to i32*
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%1 = bitcast i32* %x_on_stack to i8*
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call void @share(i8* %1)
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call void @__kmpc_free_shared(i8* %0)
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ret void
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}
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define void @share(i8* %x) {
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entry:
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store i8* %x, i8** @S
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ret void
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}
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declare i8* @__kmpc_alloc_shared(i64)
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declare void @__kmpc_free_shared(i8*)
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3, !4}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 12.0.0", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, splitDebugInlining: false, nameTableKind: None)
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!1 = !DIFile(filename: "globalization_remarks.c", directory: "/tmp/globalization_remarks.c")
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!2 = !{}
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!3 = !{i32 2, !"Debug Info Version", i32 3}
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!4 = !{i32 1, !"wchar_size", i32 4}
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!6 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 1, type: !7, scopeLine: 1, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !2)
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!7 = !DISubroutineType(types: !2)
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!8 = !DILocation(line: 5, column: 7, scope: !6)
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