derek.holloway
7502bf64a4
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50 lines
2.4 KiB
C
50 lines
2.4 KiB
C
// RUN: %clang_cc1 -triple x86_64-unknown-unknown -emit-llvm %s -o - | FileCheck %s
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int printf(const char *fmt, ...) __attribute__((modular_format(__modular_printf, "__printf", "float")));
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int myprintf(const char *fmt, ...) __attribute__((modular_format(__modular_printf, "__printf", "float"), format(printf, 1, 2)));
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// CHECK-LABEL: define dso_local void @test_inferred_format(
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// CHECK: {{.*}} = call i32 (ptr, ...) @printf(ptr noundef @.str) #[[ATTR:[0-9]+]]
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void test_inferred_format(void) {
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printf("hello");
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}
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// CHECK-LABEL: define dso_local void @test_explicit_format(
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// CHECK: {{.*}} = call i32 (ptr, ...) @myprintf(ptr noundef @.str) #[[ATTR:[0-9]+]]
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void test_explicit_format(void) {
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myprintf("hello");
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}
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int redecl(const char *fmt, ...) __attribute__((format(printf, 1, 2)));
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int redecl(const char *fmt, ...) __attribute__((modular_format(__dupe_impl, "__dupe", "1")));
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int redecl(const char *fmt, ...) __attribute__((modular_format(__dupe_impl, "__dupe", "1")));
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// CHECK-LABEL: define dso_local void @test_redecl(
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// CHECK: {{.*}} = call i32 (ptr, ...) @redecl(ptr noundef @.str) #[[ATTR_DUPE_IDENTICAL:[0-9]+]]
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void test_redecl(void) {
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redecl("hello");
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}
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int order1(const char *fmt, ...) __attribute__((modular_format(__modular_printf, "__printf", "a", "b"), format(printf, 1, 2)));
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int order2(const char *fmt, ...) __attribute__((modular_format(__modular_printf, "__printf", "b", "a"), format(printf, 1, 2)));
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// CHECK-LABEL: define dso_local void @test_order(
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// CHECK: {{.*}} = call i32 (ptr, ...) @order1(ptr noundef @.str) #[[ATTR_ORDER:[0-9]+]]
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// CHECK: {{.*}} = call i32 (ptr, ...) @order2(ptr noundef @.str) #[[ATTR_ORDER]]
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void test_order(void) {
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order1("hello");
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order2("hello");
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}
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int duplicate_identical(const char *fmt, ...) __attribute__((modular_format(__dupe_impl, "__dupe", "1"), modular_format(__dupe_impl, "__dupe", "1"), format(printf, 1, 2)));
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// CHECK-LABEL: define dso_local void @test_duplicate_identical(
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// CHECK: {{.*}} = call i32 (ptr, ...) @duplicate_identical(ptr noundef @.str) #[[ATTR_DUPE_IDENTICAL]]
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void test_duplicate_identical(void) {
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duplicate_identical("hello");
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}
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// CHECK: attributes #[[ATTR]] = { "modular-format"="printf,1,2,__modular_printf,__printf,float" }
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// CHECK: attributes #[[ATTR_DUPE_IDENTICAL]] = { "modular-format"="printf,1,2,__dupe_impl,__dupe,1" }
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// CHECK: attributes #[[ATTR_ORDER]] = { "modular-format"="printf,1,2,__modular_printf,__printf,a,b" }
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