34 lines
1.2 KiB
C
34 lines
1.2 KiB
C
// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fsyntax-only -verify %s
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// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fsyntax-only -verify %s -DNO_CALLER_SAVED_REGISTERS=1
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// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -target-feature -x87 -target-feature -mmx -target-feature -sse -fsyntax-only -verify %s -DGPRONLY=1
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#if defined(NO_CALLER_SAVED_REGS) || defined(GPRONLY)
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// expected-no-diagnostics
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#else
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#define EXPECT_WARNING
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#endif
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#ifdef NO_CALLER_SAVED_REGS
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__attribute__((no_caller_saved_registers))
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#endif
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#ifdef EXPECT_WARNING
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// expected-note@+3 {{'foo' declared here}}
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// expected-note@+2 {{'foo' declared here}}
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#endif
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extern void foo(void *);
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__attribute__((no_caller_saved_registers))
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void no_caller_saved_registers(void *arg) {
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#ifdef EXPECT_WARNING
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// expected-warning@+2 {{function with attribute 'no_caller_saved_registers' should only call a function with attribute 'no_caller_saved_registers' or be compiled with '-mgeneral-regs-only'}}
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#endif
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foo(arg);
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}
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__attribute__((interrupt))
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void interrupt(void *arg) {
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#ifdef EXPECT_WARNING
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// expected-warning@+2 {{interrupt service routine should only call a function with attribute 'no_caller_saved_registers' or be compiled with '-mgeneral-regs-only'}}
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#endif
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foo(arg);
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}
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