diff options
Diffstat (limited to 'test/Transforms/InstCombine/loadstore-metadata.ll')
| -rw-r--r-- | test/Transforms/InstCombine/loadstore-metadata.ll | 39 |
1 files changed, 33 insertions, 6 deletions
diff --git a/test/Transforms/InstCombine/loadstore-metadata.ll b/test/Transforms/InstCombine/loadstore-metadata.ll index 863edae..be55fa6 100644 --- a/test/Transforms/InstCombine/loadstore-metadata.ll +++ b/test/Transforms/InstCombine/loadstore-metadata.ll @@ -1,5 +1,7 @@ ; RUN: opt -instcombine -S < %s | FileCheck %s +target datalayout = "e-m:e-p:64:64:64-i64:64-f80:128-n8:16:32:64-S128" + define i32 @test_load_cast_combine_tbaa(float* %ptr) { ; Ensure (cast (load (...))) -> (load (cast (...))) preserves TBAA. ; CHECK-LABEL: @test_load_cast_combine_tbaa( @@ -78,9 +80,34 @@ exit: ret void } -!0 = metadata !{ metadata !1, metadata !1, i64 0 } -!1 = metadata !{ metadata !1 } -!2 = metadata !{ metadata !2, metadata !1 } -!3 = metadata !{ } -!4 = metadata !{ i32 1 } -!5 = metadata !{ i32 0, i32 42 } +define void @test_load_cast_combine_nonnull(float** %ptr) { +; We can't preserve nonnull metadata when converting a load of a pointer to +; a load of an integer. Instead, we translate it to range metadata. +; FIXME: We should also transform range metadata back into nonnull metadata. +; FIXME: This test is very fragile. If any LABEL lines are added after +; this point, the test will fail, because this test depends on a metadata tuple, +; which is always emitted at the end of the file. At some point, we should +; consider an option to the IR printer to emit MD tuples after the function +; that first uses them--this will allow us to refer to them like this and not +; have the tests break. For now, this function must always come last in this +; file, and no LABEL lines are to be added after this point. +; +; CHECK-LABEL: @test_load_cast_combine_nonnull( +; CHECK: %[[V:.*]] = load i64* %{{.*}}, !range ![[MD:[0-9]+]] +; CHECK-NOT: !nonnull +; CHECK: store i64 %[[V]], i64* +entry: + %p = load float** %ptr, !nonnull !3 + %gep = getelementptr float** %ptr, i32 42 + store float* %p, float** %gep + ret void +} + +; This is the metadata tuple that we reference above: +; CHECK: ![[MD]] = !{i64 1, i64 0} +!0 = !{ !1, !1, i64 0 } +!1 = !{ !1 } +!2 = !{ !2, !1 } +!3 = !{ } +!4 = !{ i32 1 } +!5 = !{ i32 0, i32 42 } |