d2d9dc8eb4
Debugify is extremely useful as a testing and debugging tool, and a good number of LLVM-IR transform tests use it. We need it to support "new" non-instruction debug-info to get test coverage, but it's not important enough to completely convert right now (and it'd be a large undertaking). Thus: convert to/from dbg.value/DPValue mode on entry and exit of the pass, which gives us the functionality without any further work. The cost is compile-time, but again this is only happening during tests. Tested by: the large set of debugify tests enabled here. Note the InstCombine test (cast-mul-select.ll) that hasn't been fully enabled: this is because there's a debug-info sinking piece of code there that hasn't been instrumented.
31 lines
1.8 KiB
LLVM
31 lines
1.8 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -passes='debugify,memcpyopt,check-debugify' -S < %s 2>&1 -verify-memoryssa | FileCheck %s
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; RUN: opt -passes='debugify,memcpyopt,check-debugify' -S < %s 2>&1 -verify-memoryssa --try-experimental-debuginfo-iterators | FileCheck %s
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; CHECK: CheckModuleDebugify: PASS
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%struct.Foo = type { i64, i64, i64 }
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@a = dso_local global ptr null, align 8
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define dso_local void @_Z3bar3Foo(ptr byval(%struct.Foo) align 8 %0) {
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; CHECK-LABEL: @_Z3bar3Foo(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[AGG_TMP:%.*]] = alloca [[STRUCT_FOO:%.*]], align 8, !dbg [[DBG12:![0-9]+]]
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; CHECK-NEXT: call void @llvm.dbg.value(metadata ptr [[AGG_TMP]], metadata [[META9:![0-9]+]], metadata !DIExpression()), !dbg [[DBG12]]
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; CHECK-NEXT: [[TMP1:%.*]] = load ptr, ptr @a, align 8, !dbg [[DBG13:![0-9]+]]
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; CHECK-NEXT: call void @llvm.dbg.value(metadata ptr [[TMP1]], metadata [[META11:![0-9]+]], metadata !DIExpression()), !dbg [[DBG13]]
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; CHECK-NEXT: call void @llvm.memcpy.p0.p0.i64(ptr nonnull align 8 dereferenceable(24) [[AGG_TMP]], ptr nonnull align 8 dereferenceable(24) [[TMP1]], i64 24, i1 false), !dbg [[DBG14:![0-9]+]]
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; CHECK-NEXT: call void @_Z3bar3Foo(ptr nonnull byval([[STRUCT_FOO]]) align 8 [[TMP1]]), !dbg [[DBG15:![0-9]+]]
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; CHECK-NEXT: ret void, !dbg [[DBG16:![0-9]+]]
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;
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entry:
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%agg.tmp = alloca %struct.Foo, align 8
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%1 = load ptr, ptr @a, align 8
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call void @llvm.memcpy.p0.p0.i64(ptr nonnull align 8 dereferenceable(24) %agg.tmp, ptr nonnull align 8 dereferenceable(24) %1, i64 24, i1 false)
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call void @_Z3bar3Foo(ptr nonnull byval(%struct.Foo) align 8 %agg.tmp)
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ret void
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}
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declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #0
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