2262b04cab
They are currently implicit because TargetMachine::shouldAssumeDSOLocal implies dso_local. For external data, clang -fno-pic emits the dso_local specifier for ELF and non-MinGW COFF. Adding explicit dso_local makes these tests in align with the clang behavior and helps implementing an option to use GOT indirection for external data access in -fno-pic mode (to avoid copy relocations).
21 lines
644 B
LLVM
21 lines
644 B
LLVM
; RUN: llc < %s -mtriple=x86_64-linux-gnux32 | FileCheck %s
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; RUN: llc < %s -mtriple=x86_64-linux-gnux32 -fast-isel | FileCheck %s
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; Test for x32 function pointer tail call
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@foo1 = external dso_local global void (i8*)*
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@foo2 = external dso_local global void (i8*)*
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define void @bar(i8* %h) nounwind uwtable {
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entry:
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%0 = load void (i8*)*, void (i8*)** @foo1, align 4
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; CHECK: movl foo1(%rip), %e{{[^,]*}}
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tail call void %0(i8* %h) nounwind
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; CHECK: callq *%r{{[^,]*}}
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%1 = load void (i8*)*, void (i8*)** @foo2, align 4
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; CHECK: movl foo2(%rip), %e{{[^,]*}}
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tail call void %1(i8* %h) nounwind
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; CHECK: jmpq *%r{{[^,]*}}
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ret void
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}
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