| ; RUN: opt -passes=instcombine -S < %s | FileCheck %s |
| target datalayout = "e-m:o-p:40:64:64:32-i64:64-f80:128-n8:16:32:64-S128" |
| |
| ; check that memory builtins can be handled. |
| define i64 @objsize1_custom_idx(i64 %sz) { |
| entry: |
| %ptr = call ptr @malloc(i64 %sz) |
| %ptr2 = getelementptr inbounds i8, ptr %ptr, i32 2 |
| %calc_size = call i64 @llvm.objectsize.i64.p0(ptr %ptr2, i1 false, i1 true, i1 true) |
| ret i64 %calc_size |
| } |
| |
| %struct.V = type { [10 x i8], i32, [10 x i8] } |
| |
| define i32 @objsize2_custom_idx() #0 { |
| entry: |
| %var = alloca %struct.V, align 4 |
| call void @llvm.lifetime.start.p0(i64 28, ptr %var) #3 |
| %arrayidx = getelementptr inbounds [10 x i8], ptr %var, i64 0, i64 1 |
| %0 = call i64 @llvm.objectsize.i64.p0(ptr %arrayidx, i1 false, i1 false, i1 false) |
| %conv = trunc i64 %0 to i32 |
| call void @llvm.lifetime.end.p0(i64 28, ptr %var) #3 |
| ret i32 %conv |
| ; CHECK: ret i32 27 |
| } |
| |
| declare void @llvm.lifetime.start.p0(i64, ptr nocapture) #1 |
| declare void @llvm.lifetime.end.p0(i64, ptr nocapture) #1 |
| declare ptr @malloc(i64) |
| declare i64 @llvm.objectsize.i64.p0(ptr, i1, i1, i1) |
