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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 `{{.*}} `.
14 lines
420 B
C
14 lines
420 B
C
// REQUIRES: arm-registered-target
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// RUN: %clang_cc1 -triple arm-none-linux-gnueabi -emit-llvm -w -o - < %s | FileCheck %s
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typedef int __attribute__((pcs("aapcs"))) (*aapcs_fn)(void);
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typedef int __attribute__((pcs("aapcs-vfp"))) (*aapcs_vfp_fn)(void);
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aapcs_fn bar;
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int foo(aapcs_vfp_fn baz) {
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// CHECK-LABEL: define{{.*}} i32 @foo
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// CHECK: call arm_aapcscc
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// CHECK: call arm_aapcs_vfpcc
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return bar() + baz();
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}
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