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for TLS dynamic models on 64-bit PowerPC ELF. The default sort routine for relocations only sorts on the r_offset field; but with TLS, there can be two relocations with the same r_offset. For PowerPC, this patch sorts secondarily on descending r_type, which matches the behavior expected by the linker. llvm-svn: 170237
51 lines
1.6 KiB
LLVM
51 lines
1.6 KiB
LLVM
; RUN: llc -mcpu=pwr7 -O0 -filetype=obj -relocation-model=pic %s -o - | \
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; RUN: elf-dump --dump-section-data | FileCheck %s
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; Test correct relocation generation for thread-local storage using
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; the local dynamic model.
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target datalayout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-f128:128:128-v128:128:128-n32:64"
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target triple = "powerpc64-unknown-linux-gnu"
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@a = hidden thread_local global i32 0, align 4
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define signext i32 @main() nounwind {
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entry:
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%retval = alloca i32, align 4
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store i32 0, i32* %retval
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%0 = load i32* @a, align 4
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ret i32 %0
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}
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; Verify generation of R_PPC64_GOT_TLSLD16_HA, R_PPC64_GOT_TLSLD16_LO,
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; R_PPC64_TLSLD, R_PPC64_DTPREL16_HA, and R_PPC64_DTPREL16_LO for
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; accessing external variable a, and R_PPC64_REL24 for the call to
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; __tls_get_addr.
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;
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; CHECK: '.rela.text'
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; CHECK: Relocation 0
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; CHECK-NEXT: 'r_offset'
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; CHECK-NEXT: 'r_sym', 0x[[SYM1:[0-9a-f]+]]
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; CHECK-NEXT: 'r_type', 0x00000056
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; CHECK: Relocation 1
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; CHECK-NEXT: 'r_offset'
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; CHECK-NEXT: 'r_sym', 0x[[SYM1]]
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; CHECK-NEXT: 'r_type', 0x00000054
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; CHECK: Relocation 2
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; CHECK-NEXT: 'r_offset'
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; CHECK-NEXT: 'r_sym', 0x[[SYM1]]
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; CHECK-NEXT: 'r_type', 0x0000006c
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; CHECK: Relocation 3
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; CHECK-NEXT: 'r_offset'
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; CHECK-NEXT: 'r_sym', 0x{{[0-9a-f]+}}
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; CHECK-NEXT: 'r_type', 0x0000000a
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; CHECK: Relocation 4
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; CHECK-NEXT: 'r_offset'
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; CHECK-NEXT: 'r_sym', 0x[[SYM1]]
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; CHECK-NEXT: 'r_type', 0x0000004d
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; CHECK: Relocation 5
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; CHECK-NEXT: 'r_offset'
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; CHECK-NEXT: 'r_sym', 0x[[SYM1]]
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; CHECK-NEXT: 'r_type', 0x0000004b
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