xref: /llvm-project/llvm/test/Transforms/InstCombine/builtin-object-size-custom-dl.ll (revision 4ab40eca080965c65802710e39adbb78c4ce7bde)
1; RUN: opt -passes=instcombine -S < %s | FileCheck %s
2target datalayout = "e-m:o-p:40:64:64:32-i64:64-f80:128-n8:16:32:64-S128"
3
4; check that memory builtins can be handled.
5define i64 @objsize1_custom_idx(i64 %sz) {
6entry:
7  %ptr = call ptr @malloc(i64 %sz)
8  %ptr2 = getelementptr inbounds i8, ptr %ptr, i32 2
9  %calc_size = call i64 @llvm.objectsize.i64.p0(ptr %ptr2, i1 false, i1 true, i1 true)
10  ret i64 %calc_size
11}
12
13%struct.V = type { [10 x i8], i32, [10 x i8] }
14
15define i32 @objsize2_custom_idx() #0 {
16entry:
17  %var = alloca %struct.V, align 4
18  call void @llvm.lifetime.start.p0(i64 28, ptr %var) #3
19  %arrayidx = getelementptr inbounds [10 x i8], ptr %var, i64 0, i64 1
20  %0 = call i64 @llvm.objectsize.i64.p0(ptr %arrayidx, i1 false, i1 false, i1 false)
21  %conv = trunc i64 %0 to i32
22  call void @llvm.lifetime.end.p0(i64 28, ptr %var) #3
23  ret i32 %conv
24; CHECK: ret i32 27
25}
26
27declare void @llvm.lifetime.start.p0(i64, ptr nocapture) #1
28declare void @llvm.lifetime.end.p0(i64, ptr nocapture) #1
29declare ptr @malloc(i64)
30declare i64 @llvm.objectsize.i64.p0(ptr, i1, i1, i1)
31