31 lines
1.1 KiB
LLVM
31 lines
1.1 KiB
LLVM
;; Test that we don't pad the x86-64 General Dynamic/Local Dynamic TLS code
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;; sequence. It uses prefixes to allow linker relaxation. We need to disable
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;; prefix or nop padding for it. For simplicity and consistency, disable for
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;; Local Dynamic and 32-bit as well.
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; RUN: llc -mtriple=i386 -relocation-model=pic -x86-branches-within-32B-boundaries < %s | FileCheck --check-prefixes=CHECK,32 %s
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; RUN: llc -mtriple=x86_64 -relocation-model=pic -x86-branches-within-32B-boundaries < %s | FileCheck --check-prefixes=CHECK,64 %s
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@gd = external thread_local global i32
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@ld = internal thread_local global i32 0
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define i32 @tls_get_addr() {
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; CHECK-LABEL: tls_get_addr:
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; CHECK: #noautopadding
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; 32: leal gd@TLSGD(,%ebx), %eax
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; 32: calll ___tls_get_addr@PLT
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; 64: data16
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; 64: leaq gd@TLSGD(%rip), %rdi
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; 64: callq __tls_get_addr@PLT
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; CHECK: #autopadding
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; CHECK: #noautopadding
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; 32: leal ld@TLSLDM(%ebx), %eax
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; 32: calll ___tls_get_addr@PLT
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; 64: leaq ld@TLSLD(%rip), %rdi
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; 64: callq __tls_get_addr@PLT
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; CHECK: #autopadding
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%1 = load i32, ptr @gd
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%2 = load i32, ptr @ld
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%3 = add i32 %1, %2
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ret i32 %3
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}
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