6c47f54df8
Calls to this function are deleted in the ARC optimizer. However when the ARC optimizer was updated to use intrinsics instead of functions (r349534), the corresponding clang change (r349535) to use intrinsics missed this one so it wasn't being deleted. llvm-svn: 349782
80 lines
4.1 KiB
Objective-C
80 lines
4.1 KiB
Objective-C
// RUN: %clang_cc1 %s -emit-llvm -o - -triple x86_64-darwin-apple -fobjc-arc -O2 | FileCheck %s
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// RUN: %clang_cc1 %s -emit-llvm -o - -triple x86_64-darwin-apple -fobjc-arc -O0 | FileCheck %s -check-prefix=CHECK-O0
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// Make sure we emit clang.arc.use before calling objc_release as part of the
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// cleanup. This way we make sure the object will not be released until the
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// end of the full expression.
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// rdar://problem/24528966
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@class NSString;
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extern __attribute__((visibility("default"))) NSString *GenString();
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// Behavior of __builtin_os_log differs between platforms, so only test on X86
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#ifdef __x86_64__
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// CHECK-LABEL: define i8* @test_builtin_os_log
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// CHECK-O0-LABEL: define i8* @test_builtin_os_log
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// CHECK: (i8* returned %[[BUF:.*]])
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// CHECK-O0: (i8* %[[BUF:.*]])
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void *test_builtin_os_log(void *buf) {
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return __builtin_os_log_format(buf, "capabilities: %@", GenString());
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// CHECK: %[[CALL:.*]] = tail call %[[TY0:.*]]* (...) @GenString()
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// CHECK: %[[V0:.*]] = bitcast %[[TY0]]* %[[CALL]] to i8*
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// CHECK: %[[V1:.*]] = tail call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* %[[V0]])
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// CHECK: %[[V2:.*]] = ptrtoint %[[TY0]]* %[[CALL]] to i64
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// CHECK: store i8 2, i8* %[[BUF]], align 1
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// CHECK: %[[NUMARGS_I:.*]] = getelementptr i8, i8* %[[BUF]], i64 1
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// CHECK: store i8 1, i8* %[[NUMARGS_I]], align 1
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// CHECK: %[[ARGDESCRIPTOR_I:.*]] = getelementptr i8, i8* %[[BUF]], i64 2
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// CHECK: store i8 64, i8* %[[ARGDESCRIPTOR_I]], align 1
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// CHECK: %[[ARGSIZE_I:.*]] = getelementptr i8, i8* %[[BUF]], i64 3
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// CHECK: store i8 8, i8* %[[ARGSIZE_I]], align 1
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// CHECK: %[[ARGDATA_I:.*]] = getelementptr i8, i8* %[[BUF]], i64 4
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// CHECK: %[[ARGDATACAST_I:.*]] = bitcast i8* %[[ARGDATA_I]] to i64*
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// CHECK: store i64 %[[V2]], i64* %[[ARGDATACAST_I]], align 1
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// CHECK: tail call void (...) @llvm.objc.clang.arc.use(%[[TY0]]* %[[CALL]])
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// CHECK: tail call void @llvm.objc.release(i8* %[[V0]])
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// CHECK: ret i8* %[[BUF]]
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// clang.arc.use is used and removed in IR optimizations. At O0, we should not
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// emit clang.arc.use, since it will not be removed and we will have a link
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// error.
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// CHECK-O0: %[[BUF_ADDR:.*]] = alloca i8*, align 8
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// CHECK-O0: store i8* %[[BUF]], i8** %[[BUF_ADDR]], align 8
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// CHECK-O0: %[[V0:.*]] = load i8*, i8** %[[BUF_ADDR]], align 8
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// CHECK-O0: %[[CALL:.*]] = call %[[TY0:.*]]* (...) @GenString()
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// CHECK-O0: %[[V1:.*]] = bitcast %[[TY0]]* %[[CALL]] to i8*
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// CHECK-O0: %[[V2:.*]] = call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* %[[V1]])
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// CHECK-O0: %[[V3:.*]] = bitcast i8* %[[V2]] to %[[TY0]]*
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// CHECK-O0: %[[V4:.*]] = ptrtoint %[[TY0]]* %[[V3]] to i64
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// CHECK-O0: call void @__os_log_helper_1_2_1_8_64(i8* %[[V0]], i64 %[[V4]])
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// CHECK-O0: %[[V5:.*]] = bitcast %[[TY0]]* %[[V3]] to i8*
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// CHECK-O0-NOT call void (...) @llvm.objc.clang.arc.use({{.*}}
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// CHECK-O0: call void @llvm.objc.release(i8* %[[V5]])
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// CHECK-O0: ret i8* %[[V0]]
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}
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// CHECK-O0-LABEL: define linkonce_odr hidden void @__os_log_helper_1_2_1_8_64
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// CHECK-O0: (i8* %[[BUFFER:.*]], i64 %[[ARG0:.*]])
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// CHECK-O0: %[[BUFFER_ADDR:.*]] = alloca i8*, align 8
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// CHECK-O0: %[[ARG0_ADDR:.*]] = alloca i64, align 8
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// CHECK-O0: store i8* %[[BUFFER]], i8** %[[BUFFER_ADDR]], align 8
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// CHECK-O0: store i64 %[[ARG0]], i64* %[[ARG0_ADDR]], align 8
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// CHECK-O0: %[[BUF:.*]] = load i8*, i8** %[[BUFFER_ADDR]], align 8
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// CHECK-O0: %[[SUMMARY:.*]] = getelementptr i8, i8* %[[BUF]], i64 0
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// CHECK-O0: store i8 2, i8* %[[SUMMARY]], align 1
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// CHECK-O0: %[[NUMARGS:.*]] = getelementptr i8, i8* %[[BUF]], i64 1
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// CHECK-O0: store i8 1, i8* %[[NUMARGS]], align 1
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// CHECK-O0: %[[ARGDESCRIPTOR:.*]] = getelementptr i8, i8* %[[BUF]], i64 2
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// CHECK-O0: store i8 64, i8* %[[ARGDESCRIPTOR]], align 1
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// CHECK-O0: %[[ARGSIZE:.*]] = getelementptr i8, i8* %[[BUF]], i64 3
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// CHECK-O0: store i8 8, i8* %[[ARGSIZE]], align 1
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// CHECK-O0: %[[ARGDATA:.*]] = getelementptr i8, i8* %[[BUF]], i64 4
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// CHECK-O0: %[[ARGDATACAST:.*]] = bitcast i8* %[[ARGDATA]] to i64*
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// CHECK-O0: %[[V0:.*]] = load i64, i64* %[[ARG0_ADDR]], align 8
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// CHECK-O0: store i64 %[[V0]], i64* %[[ARGDATACAST]], align 1
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#endif
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