forked from OSchip/llvm-project
52 lines
1.5 KiB
C
52 lines
1.5 KiB
C
// RUN: clang-cc -triple i386-unknown-unknown -emit-llvm -o %t %s &&
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// RUN: grep 'define signext i8 @f0(i32 %x) nounwind' %t &&
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// RUN: grep 'define zeroext i8 @f1(i32 %x) nounwind' %t &&
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// RUN: grep 'define void @f2(i8 signext %x) nounwind' %t &&
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// RUN: grep 'define void @f3(i8 zeroext %x) nounwind' %t &&
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// RUN: grep 'define signext i16 @f4(i32 %x) nounwind' %t &&
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// RUN: grep 'define zeroext i16 @f5(i32 %x) nounwind' %t &&
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// RUN: grep 'define void @f6(i16 signext %x) nounwind' %t &&
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// RUN: grep 'define void @f7(i16 zeroext %x) nounwind' %t &&
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signed char f0(int x) { return x; }
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unsigned char f1(int x) { return x; }
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void f2(signed char x) { }
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void f3(unsigned char x) { }
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signed short f4(int x) { return x; }
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unsigned short f5(int x) { return x; }
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void f6(signed short x) { }
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void f7(unsigned short x) { }
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// F8 is dead so it should not be emitted.
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// RUN: not grep '@f8' %t &&
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void __attribute__((always_inline)) f8(void) { }
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// RUN: grep 'call void @f9_t() noreturn' %t &&
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void __attribute__((noreturn)) f9_t(void);
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void f9(void) { f9_t(); }
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// FIXME: We should be setting nounwind on calls.
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// RUN: grep 'call i32 @f10_t() readnone' %t &&
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int __attribute__((const)) f10_t(void);
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int f10(void) { return f10_t(); }
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int f11(void) {
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exit:
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return f10_t();
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}
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int f12(int arg) {
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return arg ? 0 : f10_t();
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}
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// RUN: grep 'define void @f13() nounwind readnone' %t &&
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void f13(void) __attribute__((pure)) __attribute__((const));
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void f13(void){}
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// RUN: true
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