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
1.4 KiB
C
26 lines
1.4 KiB
C
// REQUIRES: arm-registered-target
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// RUN: %clang_cc1 -triple armv7-apple-darwin9 -target-abi apcs-gnu -emit-llvm -w -o - %s | FileCheck -check-prefix=DARWIN-APCS %s
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// RUN: %clang_cc1 -triple armv7-apple-darwin9 -target-abi aapcs -emit-llvm -w -o - %s | FileCheck -check-prefix=DARWIN-AAPCS %s
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// RUN: %clang_cc1 -triple arm-none-linux-gnueabi -target-abi apcs-gnu -emit-llvm -w -o - %s | FileCheck -check-prefix=LINUX-APCS %s
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// RUN: %clang_cc1 -triple arm-none-linux-gnueabi -target-abi aapcs -emit-llvm -w -o - %s | FileCheck -check-prefix=LINUX-AAPCS %s
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// RUN: %clang_cc1 -triple arm-none-linux-musleabi -target-abi apcs-gnu -emit-llvm -w -o - %s | FileCheck -check-prefix=LINUX-APCS %s
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// RUN: %clang_cc1 -triple arm-none-linux-musleabi -target-abi aapcs -emit-llvm -w -o - %s | FileCheck -check-prefix=LINUX-AAPCS %s
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// RUN: %clang_cc1 -triple armv7-none-eabihf -target-abi aapcs-vfp -emit-llvm -w -o - %s | FileCheck -check-prefix=BAREMETAL-AAPCS_VFP %s
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// DARWIN-APCS-LABEL: define{{.*}} void @f()
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// DARWIN-APCS: call void @g
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// DARWIN-AAPCS-LABEL: define{{.*}} arm_aapcscc void @f()
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// DARWIN-AAPCS: call arm_aapcscc void @g
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// LINUX-APCS-LABEL: define{{.*}} arm_apcscc void @f()
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// LINUX-APCS: call arm_apcscc void @g
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// LINUX-AAPCS-LABEL: define{{.*}} void @f()
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// LINUX-AAPCS: call void @g
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// BAREMETAL-AAPCS_VFP-LABEL: define{{.*}} void @f()
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// BAREMETAL-AAPCS_VFP: call void @g
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// BAREMETAL-AAPCS_VFP: declare void @g()
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void g(void);
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void f(void) {
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g();
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}
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