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.
18 lines
521 B
LLVM
18 lines
521 B
LLVM
; RUN: opt < %s -passes=debugify,tailcallelim -S | FileCheck %s
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; RUN: opt < %s -passes=debugify,tailcallelim -S --try-experimental-debuginfo-iterators | FileCheck %s
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define void @foo() {
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entry:
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; CHECK-LABEL: entry:
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; CHECK: br label %tailrecurse, !dbg ![[DbgLoc:[0-9]+]]
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call void @foo() ;; line 1
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ret void
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; CHECK-LABEL: tailrecurse:
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; CHECK: br label %tailrecurse, !dbg ![[DbgLoc]]
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}
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;; Make sure tailrecurse has the call instruction's DL
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; CHECK: ![[DbgLoc]] = !DILocation(line: 1
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