fd739804e0
For a default visibility external linkage definition, dso_local is set for ELF
-fno-pic/-fpie and COFF and Mach-O. Since default clang -cc1 for ELF is similar
to -fpic ("PIC Level" is not set), this nuance causes unneeded binary format differences.
To make emitted IR similar, ELF -cc1 -fpic will default to -fno-semantic-interposition,
which sets dso_local for default visibility external linkage definitions.
To make this flip smooth and enable future (dso_local as definition default),
this patch replaces (function) `define ` with `define{{.*}} `,
(variable/constant/alias) `= ` with `={{.*}} `, or inserts appropriate `{{.*}} `.
25 lines
751 B
C
25 lines
751 B
C
// RUN: %clang_cc1 -triple=x86_64-linux-gnu -emit-llvm %s -o - | FileCheck %s
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// CHECK: @tentative_attr_first ={{.*}} global i32 undef
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int tentative_attr_first __attribute__((loader_uninitialized));
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int tentative_attr_first;
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// CHECK: @tentative_attr_second ={{.*}} global i32 undef
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int tentative_attr_second;
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int tentative_attr_second __attribute__((loader_uninitialized));
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// CHECK: @array ={{.*}} global [16 x float] undef
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float array[16] __attribute__((loader_uninitialized));
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typedef struct
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{
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int x;
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float y;
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} s;
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// CHECK: @i ={{.*}} global %struct.s undef
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s i __attribute__((loader_uninitialized));
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// CHECK: @private_extern_ok = hidden global i32 undef
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__private_extern__ int private_extern_ok __attribute__((loader_uninitialized));
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