094572701d
This patch makes the final major change of the RemoveDIs project, changing the default IR output from debug intrinsics to debug records. This is expected to break a large number of tests: every single one that tests for uses or declarations of debug intrinsics and does not explicitly disable writing records. If this patch has broken your downstream tests (or upstream tests on a configuration I wasn't able to run): 1. If you need to immediately unblock a build, pass `--write-experimental-debuginfo=false` to LLVM's option processing for all failing tests (remember to use `-mllvm` for clang/flang to forward arguments to LLVM). 2. For most test failures, the changes are trivial and mechanical, enough that they can be done by script; see the migration guide for a guide on how to do this: https://llvm.org/docs/RemoveDIsDebugInfo.html#test-updates 3. If any tests fail for reasons other than FileCheck check lines that need updating, such as assertion failures, that is most likely a real bug with this patch and should be reported as such. For more information, see the recent PSA: https://discourse.llvm.org/t/psa-ir-output-changing-from-debug-intrinsics-to-debug-records/79578
55 lines
1.8 KiB
LLVM
55 lines
1.8 KiB
LLVM
; RUN: opt -passes=debugify,loop-simplify,loop-extract -S < %s | FileCheck %s
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; RUN: opt -passes=debugify,loop-simplify,loop-extract -S < %s --try-experimental-debuginfo-iterators | FileCheck %s
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; This tests 2 cases:
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; 1. loop1 should be extracted into a function, without extracting %v1 alloca.
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; 2. loop2 should be extracted into a function, with the %v2 alloca.
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;
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; This used to produce an invalid IR, where `memcpy` will have a reference to
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; the, now, external value (local to the extracted loop function).
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; CHECK-LABEL: define void @test()
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; CHECK-NEXT: entry:
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; CHECK-NEXT: %v1 = alloca i32
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; CHECK-NEXT: #dbg_value(ptr %v1
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; CHECK-NEXT: call void @llvm.memcpy.p0.p0.i64(ptr align 4 undef, ptr %v1, i64 4, i1 true)
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; CHECK-LABEL: define internal void @test.loop2()
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; CHECK-NEXT: newFuncRoot:
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; CHECK-NEXT: %v2 = alloca i32
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; CHECK-LABEL: define internal void @test.loop1(ptr %v1)
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; CHECK-NEXT: newFuncRoot:
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; CHECK-NEXT: br
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define void @test() {
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entry:
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%v1 = alloca i32, align 4
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%v2 = alloca i32, align 4
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call void @llvm.memcpy.p0.p0.i64(ptr align 4 undef, ptr %v1, i64 4, i1 true)
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br label %loop1
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loop1:
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call void @llvm.lifetime.start.p0(i64 4, ptr %v1)
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%r1 = call i32 @foo(ptr %v1)
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call void @llvm.lifetime.end.p0(i64 4, ptr %v1)
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%cmp1 = icmp ne i32 %r1, 0
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br i1 %cmp1, label %loop1, label %loop2
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loop2:
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call void @llvm.lifetime.start.p0(i64 4, ptr %v2)
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%r2 = call i32 @foo(ptr %v2)
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call void @llvm.lifetime.end.p0(i64 4, ptr %v2)
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%cmp2 = icmp ne i32 %r2, 0
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br i1 %cmp2, label %loop2, label %exit
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exit:
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ret void
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}
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declare i32 @foo(ptr)
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declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture)
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declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture)
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declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg)
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