8bcb073705
When set, the compiler will use separate unique sections for global symbols in named special sections (e.g. symbols that are annotated with __attribute__((section(...)))). Doing so enables linker GC to collect unused symbols without having to use a different section per-symbol.
29 lines
918 B
C
29 lines
918 B
C
// REQUIRES: x86-registered-target
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// RUN: %clang_cc1 -triple x86_64-pc-linux -S -o - < %s | FileCheck %s
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// RUN: %clang_cc1 -triple x86_64-pc-linux -S -fseparate-named-sections -o - < %s | FileCheck %s --check-prefix=SEPARATE
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__attribute__((section("custom_text"))) void f(void) {}
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__attribute__((section("custom_text"))) void g(void) {}
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// CHECK: .section custom_text,"ax",@progbits{{$}}
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// CHECK: f:
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// CHECK: g:
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// SEPARATE: .section custom_text,"ax",@progbits,unique,1{{$}}
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// SEPARATE: f:
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// SEPARATE: .section custom_text,"ax",@progbits,unique,2{{$}}
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// SEPARATE: g:
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__attribute__((section("custom_data"))) int i = 0;
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__attribute__((section("custom_data"))) int j = 0;
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// CHECK: .section custom_data,"aw",@progbits{{$}}
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// CHECK: i:
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// CHECK: j:
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// SEPARATE: .section custom_data,"aw",@progbits,unique,3{{$}}
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// SEPARATE: i:
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// SEPARATE: .section custom_data,"aw",@progbits,unique,4{{$}}
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// SEPARATE: j:
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