fd739804e0
For a default visibility external linkage definition, dso_local is set for ELF
-fno-pic/-fpie and COFF and Mach-O. Since default clang -cc1 for ELF is similar
to -fpic ("PIC Level" is not set), this nuance causes unneeded binary format differences.
To make emitted IR similar, ELF -cc1 -fpic will default to -fno-semantic-interposition,
which sets dso_local for default visibility external linkage definitions.
To make this flip smooth and enable future (dso_local as definition default),
this patch replaces (function) `define ` with `define{{.*}} `,
(variable/constant/alias) `= ` with `={{.*}} `, or inserts appropriate `{{.*}} `.
30 lines
1.3 KiB
Objective-C
30 lines
1.3 KiB
Objective-C
// RUN: %clang_cc1 -DSTRET -triple x86_64-pc-linux-gnu -fobjc-runtime=objfw -emit-llvm -o - %s | FileCheck -check-prefix=HASSTRET %s
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// RUN: %clang_cc1 -triple x86_64-pc-linux-gnu -fobjc-runtime=gcc -emit-llvm -o - %s | FileCheck -check-prefix=NOSTRET %s
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// Test stret lookup
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struct test {
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char test[1024];
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};
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@interface Test0
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+ (struct test)test;
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@end
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void test0(void) {
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struct test t;
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#if (defined(STRET) && defined(__OBJFW_RUNTIME_ABI__)) || \
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(!defined(STRET) && !defined(__OBJFW_RUNTIME_ABI__))
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t = [Test0 test];
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#endif
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(void)t;
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}
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// HASSTRET-LABEL: define{{.*}} void @test0()
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// HASSTRET: [[T0:%.*]] = call i8* (i8*, i8*, ...)* @objc_msg_lookup_stret(i8* bitcast (i64* @_OBJC_CLASS_Test0 to i8*),
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// HASSTRET-NEXT: [[T1:%.*]] = bitcast i8* (i8*, i8*, ...)* [[T0]] to void (%struct.test*, i8*, i8*)*
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// HASSTRET-NEXT: call void [[T1]](%struct.test* sret(%struct.test) {{.*}}, i8* bitcast (i64* @_OBJC_CLASS_Test0 to i8*),
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// NOSTRET-LABEL: define{{.*}} void @test0()
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// NOSTRET: [[T0:%.*]] = call i8* (i8*, i8*, ...)* @objc_msg_lookup(i8*
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// NOSTRET-NEXT: [[T1:%.*]] = bitcast i8* (i8*, i8*, ...)* [[T0]] to void (%struct.test*, i8*, i8*)*
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// NOSTRET-NEXT: call void [[T1]](%struct.test* sret(%struct.test) {{.*}}, i8* {{.*}}, i8* bitcast ([2 x { i8*, i8* }]*
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