a39fc6dd2a
This produces valid IR now that llvm rejects aliases to weak aliases and warns the user that the resolution is not changed if the weak alias is overridden. llvm-svn: 204935
57 lines
2.2 KiB
C
57 lines
2.2 KiB
C
// RUN: %clang_cc1 -triple i386-pc-linux-gnu -emit-llvm -o - %s | FileCheck -check-prefix=CHECKBASIC %s
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// RUN: %clang_cc1 -triple armv7a-eabi -mfloat-abi hard -emit-llvm -o - %s | FileCheck -check-prefix=CHECKCC %s
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int g0;
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// CHECKBASIC: @g0 = common global i32 0
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static int bar1 = 42;
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// CHECKBASIC: @bar1 = internal global i32 42
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extern int g1;
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extern int g1 __attribute((alias("g0")));
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// CHECKBASIC-DAG: @g1 = alias i32* @g0
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void f0(void) { }
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extern void f1(void);
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extern void f1(void) __attribute((alias("f0")));
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// CHECKBASIC-DAG: @f1 = alias void ()* @f0
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// CHECKBASIC-DAG: @test8_foo = alias weak bitcast (void ()* @test8_bar to void (...)*)
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// CHECKBASIC-DAG: @test8_zed = alias bitcast (void ()* @test8_bar to void (...)*)
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// CHECKBASIC: define void @f0() [[NUW:#[0-9]+]] {
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// Make sure that aliases cause referenced values to be emitted.
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// PR3200
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static inline int foo1() { return 0; }
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// CHECKBASIC-LABEL: define internal i32 @foo1()
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int foo() __attribute__((alias("foo1")));
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int bar() __attribute__((alias("bar1")));
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extern int test6();
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void test7() { test6(); } // test6 is emitted as extern.
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// test6 changes to alias.
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int test6() __attribute__((alias("test7")));
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static int inner(int a) { return 0; }
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static int inner_weak(int a) { return 0; }
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extern __typeof(inner) inner_a __attribute__((alias("inner")));
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static __typeof(inner_weak) inner_weak_a __attribute__((weakref, alias("inner_weak")));
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// CHECKCC: @inner_a = alias i32 (i32)* @inner
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// CHECKCC: define internal arm_aapcs_vfpcc i32 @inner(i32 %a) [[NUW:#[0-9]+]] {
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int outer(int a) { return inner(a); }
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// CHECKCC: define arm_aapcs_vfpcc i32 @outer(i32 %a) [[NUW]] {
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// CHECKCC: call arm_aapcs_vfpcc i32 @inner(i32 %{{.*}})
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int outer_weak(int a) { return inner_weak_a(a); }
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// CHECKCC: define arm_aapcs_vfpcc i32 @outer_weak(i32 %a) [[NUW]] {
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// CHECKCC: call arm_aapcs_vfpcc i32 @inner_weak(i32 %{{.*}})
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// CHECKCC: define internal arm_aapcs_vfpcc i32 @inner_weak(i32 %a) [[NUW]] {
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// CHECKBASIC: attributes [[NUW]] = { nounwind{{.*}} }
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// CHECKCC: attributes [[NUW]] = { nounwind{{.*}} }
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void test8_bar() {}
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void test8_foo() __attribute__((weak, alias("test8_bar")));
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void test8_zed() __attribute__((alias("test8_foo")));
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