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bc23ee33a0
This is part of a patch series working towards the ability to make SourceLocation into a 64-bit type to handle larger translation units. !srcloc is generated in clang codegen, and pulled back out by llvm functions like AsmPrinter::emitInlineAsm that need to report errors in the inline asm. From there it goes to LLVMContext::emitError, is stored in DiagnosticInfoInlineAsm, and ends up back in clang, at BackendConsumer::InlineAsmDiagHandler(), which reconstitutes a true clang::SourceLocation from the integer cookie. Throughout this code path, it's now 64-bit rather than 32, which means that if SourceLocation is expanded to a 64-bit type, this error report won't lose half of the data. The compiler will tolerate both of i32 and i64 !srcloc metadata in input IR without faulting. Test added in llvm/MC. (The semantic accuracy of the metadata is another matter, but I don't know of any situation where that matters: if you're reading an IR file written by a previous run of clang, you don't have the SourceManager that can relate those source locations back to the original source files.) Original version of the patch by Mikhail Maltsev. Reviewed By: dexonsmith Differential Revision: https://reviews.llvm.org/D105491
46 lines
1.8 KiB
LLVM
46 lines
1.8 KiB
LLVM
; RUN: not llc -filetype=obj 2>&1 -o /dev/null < %s | FileCheck %s
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; ModuleID = '/scratch/llvm/master/tools/clang/test/Misc/inline-asm-diags.c'
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source_filename = "/scratch/llvm/master/tools/clang/test/Misc/inline-asm-diags.c"
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target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64"
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target triple = "armv7-arm-none-eabi"
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; Function Attrs: noinline nounwind
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define void @foo2() #0 {
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entry:
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call void asm sideeffect " wibble", ""() #1, !srcloc !3
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; CHECK: note: !srcloc = 107
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ret void
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}
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; Function Attrs: noinline nounwind
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define void @foo() #0 {
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entry:
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call void asm sideeffect " .word -bar", ""() #1, !srcloc !4
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; CHECK: note: !srcloc = 181
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call void asm sideeffect " .word -foo", ""() #1, !srcloc !5
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; CHECK: note: !srcloc = 257
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call void asm sideeffect " .word -stoat", ""() #1, !srcloc !6
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; CHECK: note: !srcloc = 534
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ret void
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}
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attributes #0 = { noinline nounwind "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="all" "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"="cortex-a8" "target-features"="+dsp,+neon,+strict-align,+vfp3" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #1 = { nounwind }
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!llvm.module.flags = !{!0, !1}
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!llvm.ident = !{!2}
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!0 = !{i32 1, !"wchar_size", i32 4}
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!1 = !{i32 1, !"min_enum_size", i32 4}
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!2 = !{!"clang version 5.0.0 "}
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!3 = !{i32 107}
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; These !srcloc metadata nodes are intentionally not all the same type: D105491
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; changed the creation of !srcloc to generate i64 instead of the previous i32.
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; So one thing we're testing here is that both types are acceptable on input,
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; i.e. IR generated both before and after the change can be consumed.
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!4 = !{i32 181}
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!5 = !{i32 257}
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!6 = !{i64 534}
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