79 lines
1.4 KiB
C
79 lines
1.4 KiB
C
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// RUN: %clang_cc1 -triple i386-pc-linux-gnu -emit-llvm -o - %s | FileCheck %s
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// CHECK: @foo
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// Make sure we mangle overloadable, even in C system headers.
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# 1 "somesystemheader.h" 1 3 4
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// CHECK: @_Z2f0i
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void __attribute__((__overloadable__)) f0(int a) {}
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// CHECK: @_Z2f0l
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void __attribute__((__overloadable__)) f0(long b) {}
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// Unless it's unmarked.
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// CHECK: @f0
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void f0(float b) {}
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// CHECK: @bar
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// These should get merged.
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void foo() __asm__("bar");
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void foo2() __asm__("bar");
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int nux __asm__("foo");
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extern float nux2 __asm__("foo");
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int test() {
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foo();
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foo2();
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return nux + nux2;
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}
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// Function becomes a variable.
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void foo3() __asm__("var");
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void test2() {
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foo3();
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}
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int foo4 __asm__("var") = 4;
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// Variable becomes a function
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extern int foo5 __asm__("var2");
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void test3() {
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foo5 = 1;
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}
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void foo6() __asm__("var2");
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void foo6() {
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}
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int foo7 __asm__("foo7") __attribute__((used));
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float foo8 __asm__("foo7") = 42;
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// PR4412
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int func(void);
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extern int func (void) __asm__ ("FUNC");
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// CHECK: @FUNC
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int func(void) {
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return 42;
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}
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// CHECK: @_Z4foo9Dv4_f
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typedef __attribute__(( vector_size(16) )) float float4;
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void __attribute__((__overloadable__)) foo9(float4 f) {}
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// Intrinsic calls.
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extern int llvm_cas(volatile int*, int, int)
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__asm__("llvm.atomic.cmp.swap.i32.p0i32");
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int foo10(volatile int* add, int from, int to) {
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// CHECK: call i32 @llvm.atomic.cmp.swap.i32.p0i32
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return llvm_cas(add, from, to);
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}
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