45bbe0117b
attributes. These patches don't work because we can't currently access the parameter information in a reliable way when building attributes. I thought this would be relatively straightforward to fix, but it seems not to be the case. Fixing this will requrie a substantial re-plumbing of machinery to allow attributes to be handled in this location, and several other fixes to the attribute machinery should probably be made at the same time. All of this will make the patch .... substantially more complicated. Reverting for now as there are active miscompiles caused by the current version. llvm-svn: 298695
52 lines
1.3 KiB
C
52 lines
1.3 KiB
C
// RUN: %clang_cc1 -triple x86_64-apple-darwin -emit-llvm < %s | FileCheck %s
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// CHECK: define void @foo(i32* nonnull %x)
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void foo(int * __attribute__((nonnull)) x) {
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*x = 0;
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}
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// CHECK: define void @bar(i32* nonnull %x)
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void bar(int * x) __attribute__((nonnull(1))) {
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*x = 0;
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}
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// CHECK: define void @bar2(i32* %x, i32* nonnull %y)
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void bar2(int * x, int * y) __attribute__((nonnull(2))) {
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*x = 0;
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}
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static int a;
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// CHECK: define nonnull i32* @bar3()
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int * bar3() __attribute__((returns_nonnull)) {
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return &a;
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}
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// CHECK: define i32 @bar4(i32 %n, i32* nonnull %p)
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int bar4(int n, int *p) __attribute__((nonnull)) {
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return n + *p;
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}
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// CHECK: define i32 @bar5(i32 %n, i32* nonnull %p)
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int bar5(int n, int *p) __attribute__((nonnull(1, 2))) {
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return n + *p;
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}
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typedef union {
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unsigned long long n;
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int *p;
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double d;
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} TransparentUnion __attribute__((transparent_union));
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// CHECK: define i32 @bar6(i64 %
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int bar6(TransparentUnion tu) __attribute__((nonnull(1))) {
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return *tu.p;
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}
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// CHECK: define void @bar7(i32* nonnull %a, i32* nonnull %b)
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void bar7(int *a, int *b) __attribute__((nonnull(1)))
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__attribute__((nonnull(2))) {}
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// CHECK: define void @bar8(i32* nonnull %a, i32* nonnull %b)
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void bar8(int *a, int *b) __attribute__((nonnull))
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__attribute__((nonnull(1))) {}
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