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.
40 lines
1.3 KiB
LLVM
40 lines
1.3 KiB
LLVM
; RUN: opt %s -passes=debugify,simplifycfg -simplifycfg-require-and-preserve-domtree=1 -S | FileCheck %s
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; RUN: opt %s -passes=debugify,simplifycfg -simplifycfg-require-and-preserve-domtree=1 -S --try-experimental-debuginfo-iterators | FileCheck %s
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; Tests Bug 37966
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define void @bar(i32 %aa) {
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; CHECK-LABEL: @bar(
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; CHECK: if.end.1.critedge:
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; CHECK: br label %if.end.1, !dbg ![[DBG:[0-9]+]]
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entry:
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%aa.addr = alloca i32, align 4
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%bb = alloca i32, align 4
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store i32 %aa, ptr %aa.addr, align 4
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store i32 0, ptr %bb, align 4
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%tobool = icmp ne i32 %aa, 0
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br i1 %tobool, label %if.then, label %if.end
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if.then: ; preds = %entry
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call void @foo()
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br label %if.end
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if.end: ; preds = %if.then, %entry
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store i32 1, ptr %bb, align 4
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br i1 %tobool, label %if.then.1, label %if.end.1 ; "line 10" to -debugify
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if.then.1: ; preds = %if.end
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call void @foo()
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br label %if.end.1
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if.end.1: ; preds = %if.then.1, %if.end
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store i32 2, ptr %bb, align 4
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br label %for.end
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for.end: ; preds = %if.end.1
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ret void
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}
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declare void @foo()
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; CHECK: ![[DBG]] = !DILocation(line: 10,
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