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 `{{.*}} `.
44 lines
1.5 KiB
C
44 lines
1.5 KiB
C
// RUN: %clang_cc1 -triple thumbv8m.base-none-eabi -O1 -emit-llvm %s -o - 2>&1 | \
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// RUN: FileCheck %s --check-prefix=CHECK-NOSE --check-prefix=CHECK
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// RUN: %clang_cc1 -triple thumbebv8m.base-none-eabi -O1 -emit-llvm %s -o - 2>&1 | \
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// RUN: FileCheck %s --check-prefix=CHECK-NOSE --check-prefix=CHECK
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// RUN: %clang_cc1 -triple thumbv8m.base-none-eabi -mcmse -O1 -emit-llvm %s -o - 2>&1 | \
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// RUN: FileCheck %s --check-prefix=CHECK-SE --check-prefix=CHECK
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// RUN: %clang_cc1 -triple thumbebv8m.base-none-eabi -mcmse -O1 -emit-llvm %s -o - 2>&1 | \
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// RUN: FileCheck %s --check-prefix=CHECK-SE --check-prefix=CHECK
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typedef void (*callback_t)(void) __attribute__((cmse_nonsecure_call));
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typedef void callback2_t(void) __attribute__((cmse_nonsecure_call));
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void f1(callback_t fptr)
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{
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fptr();
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}
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void f2(callback2_t *fptr)
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{
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fptr();
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}
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void f3() __attribute__((cmse_nonsecure_entry));
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void f3()
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{
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}
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void f4() __attribute__((cmse_nonsecure_entry))
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{
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}
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// CHECK: define{{.*}} void @f1(void ()* nocapture %fptr) {{[^#]*}}#0 {
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// CHECK: call void %fptr() #2
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// CHECK: define{{.*}} void @f2(void ()* nocapture %fptr) {{[^#]*}}#0 {
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// CHECK: call void %fptr() #2
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// CHECK: define{{.*}} void @f3() {{[^#]*}}#1 {
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// CHECK: define{{.*}} void @f4() {{[^#]*}}#1 {
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// CHECK-NOSE-NOT: cmse_nonsecure_entry
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// CHECK-NOSE-NOT: cmse_nonsecure_call
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// CHECK-SE: attributes #0 = { nounwind
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// CHECK-SE: attributes #1 = { {{.*}} "cmse_nonsecure_entry"
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// CHECK-SE: attributes #2 = { {{.*}} "cmse_nonsecure_call"
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