| // RUN: %clang_cc1 -x c -std=c89 -fblocks -debug-info-kind=standalone -emit-llvm -O0 \ |
| // RUN: -triple x86_64-apple-darwin -o - %s | FileCheck %s |
| // RUN: %clang_cc1 -x c -std=c89 -fblocks -debug-info-kind=standalone -emit-llvm -O1 \ |
| // RUN: -triple x86_64-apple-darwin -o - %s \ |
| // RUN: | FileCheck --check-prefix=CHECK-OPT %s |
| |
| // CHECK: define internal void @__f_block_invoke(ptr noundef %.block_descriptor) |
| // CHECK: %.block_descriptor.addr = alloca ptr, align 8 |
| // CHECK: %block.addr = alloca ptr, align 8 |
| // CHECK: store ptr %.block_descriptor, ptr %.block_descriptor.addr, align 8 |
| // CHECK: call void @llvm.dbg.declare(metadata ptr %.block_descriptor.addr, |
| // CHECK-SAME: metadata !DIExpression()) |
| // CHECK-OPT-NOT: alloca |
| // Since the block address is not used anywhere in this function, |
| // the optimizer (DeadArgElim) has replaced all the false uses |
| // (i.e., metadata users) with poison. |
| // CHECK-OPT: call void @llvm.dbg.value(metadata ptr poison, |
| // CHECK-OPT-SAME: metadata !DIExpression()) |
| void f(void) { |
| a(^{ |
| b(); |
| }); |
| } |
