xref: /llvm-project/llvm/test/CodeGen/Hexagon/branchfolder-keep-impdef.ll (revision 2208c97c1bec2512d4e47b6223db6d95a7037956)
1; RUN: llc -mtriple=hexagon -verify-machineinstrs < %s | FileCheck %s
2;
3; Check that the testcase compiles successfully. Expect that if-conversion
4; took place.
5; CHECK-LABEL: fred:
6; CHECK: if (!p0) r{{[0-9]+}} = memw(r{{[0-9]+}}+#0)
7
8target triple = "hexagon"
9
10define void @fred(i32 %p0) local_unnamed_addr align 2 {
11b0:
12  br i1 undef, label %b1, label %b2
13
14b1:                                               ; preds = %b0
15  %t0 = load ptr, ptr undef, align 4
16  br label %b2
17
18b2:                                               ; preds = %b1, %b0
19  %t1 = phi ptr [ %t0, %b1 ], [ undef, %b0 ]
20  %t2 = getelementptr inbounds i8, ptr %t1, i32 %p0
21  tail call void @llvm.memmove.p0.p0.i32(ptr undef, ptr %t2, i32 undef, i1 false) #1
22  ret void
23}
24
25declare void @llvm.memmove.p0.p0.i32(ptr nocapture, ptr nocapture readonly, i32, i1) #0
26
27attributes #0 = { argmemonly nounwind }
28attributes #1 = { nounwind }
29
30