| ; RUN: opt < %s -passes=instcombine -S | FileCheck %s |
| |
| %struct.__va_list = type { ptr, ptr, ptr, i32, i32 } |
| |
| declare void @llvm.lifetime.start.p0(i64, ptr nocapture) |
| declare void @llvm.lifetime.end.p0(i64, ptr nocapture) |
| declare void @llvm.va_start(ptr) |
| declare void @llvm.va_end(ptr) |
| declare void @llvm.va_copy(ptr, ptr) |
| |
| define i32 @func(ptr nocapture readnone %fmt, ...) { |
| ; CHECK-LABEL: @func( |
| ; CHECK: entry: |
| ; CHECK-NEXT: ret i32 0 |
| entry: |
| %va0 = alloca %struct.__va_list, align 8 |
| %va1 = alloca %struct.__va_list, align 8 |
| call void @llvm.lifetime.start.p0(i64 32, ptr %va0) |
| call void @llvm.va_start(ptr %va0) |
| call void @llvm.lifetime.start.p0(i64 32, ptr %va1) |
| call void @llvm.va_copy(ptr %va1, ptr %va0) |
| call void @llvm.va_end(ptr %va1) |
| call void @llvm.lifetime.end.p0(i64 32, ptr %va1) |
| call void @llvm.va_end(ptr %va0) |
| call void @llvm.lifetime.end.p0(i64 32, ptr %va0) |
| ret i32 0 |
| } |
| |
