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 `{{.*}} `.
26 lines
629 B
C
26 lines
629 B
C
// UNSUPPORTED: experimental-new-pass-manager
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// Currently, different code seems to be intentionally generated under the new
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// PM since we alwaysinline functions and not callsites under new PM.
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// Under new PM, f() will not be inlined from g() since f is not marked as
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// alwaysinline.
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// RUN: %clang_cc1 -triple=x86_64-linux-gnu %s -emit-llvm -o - | FileCheck %s
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void f(void) {}
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__attribute__((noinline)) void ni(void) {}
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__attribute__((flatten))
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// CHECK: define{{.*}} void @g()
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void g(void) {
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// CHECK-NOT: call {{.*}} @f
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f();
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// CHECK: call {{.*}} @ni
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ni();
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}
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void h(void) {
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// CHECK: call {{.*}} @f
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f();
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}
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