whentojump wrote:
> Hello,
>
> I noticed that before this patch `clang empty.c -fsanitize=undefined
> -ffine-grained-bitfield-accesses -c -Werror` (on empty file empty.c) resulted
> in `warning: option '-ffine-grained-bitfield-accesses' cannot be enabled
> together with a sanitizer; flag igno
whentojump wrote:
Thanks everyone!
I notice that #87000 has been tagged with release milestone. I can handle the
backport there. Maybe in a few days? Or sooner if that's needed.
https://github.com/llvm/llvm-project/pull/89869
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https://github.com/llvm/llvm-project/pull/89869
>From 510e0f131ad11d7924f33fc4c4130dcf866bd8da Mon Sep 17 00:00:00 2001
From: NAKAMURA Takumi
Date: Fri, 19 Apr 2024 15:16:05 +0900
Subject: [PATCH 1/9] [MC/DC][Coverage] Workaround for `##` conditions
A synt
https://github.com/whentojump updated
https://github.com/llvm/llvm-project/pull/89869
>From 510e0f131ad11d7924f33fc4c4130dcf866bd8da Mon Sep 17 00:00:00 2001
From: NAKAMURA Takumi
Date: Fri, 19 Apr 2024 15:16:05 +0900
Subject: [PATCH 1/8] [MC/DC][Coverage] Workaround for `##` conditions
A synt
@@ -517,7 +552,7 @@ class CoverageMappingBuilder {
SourceRegionFilter Filter;
for (const auto &FM : FileIDMapping) {
SourceLocation ExpandedLoc = FM.second.second;
- SourceLocation ParentLoc = getIncludeOrExpansionLoc(ExpandedLoc);
+ SourceLocation Paren
whentojump wrote:
Sorry for getting back this late.
I reverted the latest commit (using `SourceRange`) and addressed the earlier
comment about updating region sloc only when they are changed.
And yes if you have better ideas about `getNonScratchExpansion` implementation
you can please post a
https://github.com/whentojump updated
https://github.com/llvm/llvm-project/pull/89869
>From 968ef430dd09ee4545323426d0c5b550c6a0f690 Mon Sep 17 00:00:00 2001
From: NAKAMURA Takumi
Date: Fri, 19 Apr 2024 15:16:05 +0900
Subject: [PATCH 1/8] [MC/DC][Coverage] Workaround for `##` conditions
A synt
https://github.com/whentojump milestoned
https://github.com/llvm/llvm-project/pull/89564
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whentojump wrote:
/cherry-pick c1b6cca1214e7a9c14a30b81585dd8b81baeaa77
https://github.com/llvm/llvm-project/pull/89564
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@@ -292,10 +292,36 @@ class CoverageMappingBuilder {
return SM.getLocForEndOfFile(SM.getFileID(Loc));
}
- /// Find out where the current file is included or macro is expanded.
- SourceLocation getIncludeOrExpansionLoc(SourceLocation Loc) {
-return Loc.isMacroID() ?
https://github.com/whentojump updated
https://github.com/llvm/llvm-project/pull/89869
>From 968ef430dd09ee4545323426d0c5b550c6a0f690 Mon Sep 17 00:00:00 2001
From: NAKAMURA Takumi
Date: Fri, 19 Apr 2024 15:16:05 +0900
Subject: [PATCH 1/6] [MC/DC][Coverage] Workaround for `##` conditions
A synt
https://github.com/whentojump updated
https://github.com/llvm/llvm-project/pull/89869
>From 968ef430dd09ee4545323426d0c5b550c6a0f690 Mon Sep 17 00:00:00 2001
From: NAKAMURA Takumi
Date: Fri, 19 Apr 2024 15:16:05 +0900
Subject: [PATCH 1/5] [MC/DC][Coverage] Workaround for `##` conditions
A synt
https://github.com/whentojump edited
https://github.com/llvm/llvm-project/pull/89869
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@@ -339,8 +355,18 @@ class CoverageMappingBuilder {
llvm::SmallSet Visited;
SmallVector, 8> FileLocs;
-for (const auto &Region : SourceRegions) {
+for (auto &Region : SourceRegions) {
SourceLocation Loc = Region.getBeginLoc();
+
+ // Replace Region
https://github.com/whentojump updated
https://github.com/llvm/llvm-project/pull/89869
>From 968ef430dd09ee4545323426d0c5b550c6a0f690 Mon Sep 17 00:00:00 2001
From: NAKAMURA Takumi
Date: Fri, 19 Apr 2024 15:16:05 +0900
Subject: [PATCH 1/4] [MC/DC][Coverage] Workaround for `##` conditions
A synt
https://github.com/whentojump updated
https://github.com/llvm/llvm-project/pull/89869
>From 968ef430dd09ee4545323426d0c5b550c6a0f690 Mon Sep 17 00:00:00 2001
From: NAKAMURA Takumi
Date: Fri, 19 Apr 2024 15:16:05 +0900
Subject: [PATCH 1/3] [MC/DC][Coverage] Workaround for `##` conditions
A synt
https://github.com/whentojump edited
https://github.com/llvm/llvm-project/pull/89869
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whentojump wrote:
Yes I can do it. Thank you as well!!
https://github.com/llvm/llvm-project/pull/89573
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https://github.com/whentojump edited
https://github.com/llvm/llvm-project/pull/89869
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https://github.com/llvm/llvm-project/pull/89869
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https://github.com/whentojump updated
https://github.com/llvm/llvm-project/pull/89869
>From 968ef430dd09ee4545323426d0c5b550c6a0f690 Mon Sep 17 00:00:00 2001
From: NAKAMURA Takumi
Date: Fri, 19 Apr 2024 15:16:05 +0900
Subject: [PATCH 1/2] [MC/DC][Coverage] Workaround for `##` conditions
A synt
whentojump wrote:
@chapuni Would you please take a look at #89869? Specifically, the extra one
commit atop yours.
Essentially I did similar things to `getIncludeOrExpansionLoc()`.
https://github.com/llvm/llvm-project/pull/89573
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https://github.com/llvm/llvm-project/pull/89869
None
>From 968ef430dd09ee4545323426d0c5b550c6a0f690 Mon Sep 17 00:00:00 2001
From: NAKAMURA Takumi
Date: Fri, 19 Apr 2024 15:16:05 +0900
Subject: [PATCH 1/2] [MC/DC][Coverage] Workaround for `##` conditions
whentojump wrote:
Hi, thanks for the fix.
I can confirm it addressed your test case (https://godbolt.org/z/sMscqWeq7).
But unfortunately it doesn't fix the one in my original post of #87000
([compiler explorer
link](https://godbolt.org/#z:OYLghAFBqd5QCxAYwPYBMCmBRdBLAF1QCcAaPECAMzwBtMA7AQwFtM
https://github.com/whentojump closed
https://github.com/llvm/llvm-project/pull/89564
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whentojump wrote:
Fwiw, I uncovered #86998 in the first place when I was compiling this file in
Linux kernel:
https://elixir.bootlin.com/linux/v6.8.1/source/fs/coredump.c#L545. I can
confirm on my local side, with this patch, `fs/coredump.o` can be compiled and
instrumented successfully.
I a
whentojump wrote:
Thanks for your suggestion! @ZequanWu
Would you please take another look?
https://github.com/llvm/llvm-project/pull/89564
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>From abbdb318d62bb2e5ab6f07e7d0fe11f4a06b5a11 Mon Sep 17 00:00:00 2001
From: Wentao Zhang
Date: Sun, 21 Apr 2024 21:27:01 -0500
Subject: [PATCH 1/4] [clang][CoverageMapping] do not emit gap when either end
i
https://github.com/whentojump updated
https://github.com/llvm/llvm-project/pull/89564
>From abbdb318d62bb2e5ab6f07e7d0fe11f4a06b5a11 Mon Sep 17 00:00:00 2001
From: Wentao Zhang
Date: Sun, 21 Apr 2024 21:27:01 -0500
Subject: [PATCH 1/2] [clang][CoverageMapping] do not emit gap when either end
i
https://github.com/whentojump converted_to_draft
https://github.com/llvm/llvm-project/pull/89564
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>From abbdb318d62bb2e5ab6f07e7d0fe11f4a06b5a11 Mon Sep 17 00:00:00 2001
From: Wentao Zhang
Date: Sun, 21 Apr 2024 21:27:01 -0500
Subject: [PATCH] [clang][CoverageMapping] do not emit gap when either end is
an
https://github.com/whentojump created
https://github.com/llvm/llvm-project/pull/89564
Fixes #86998
Two compiler explorer examples:
[1](https://godbolt.org/#g:!((g:!((g:!((h:codeEditor,i:(filename:'1',fontScale:14,fontUsePx:'0',j:1,lang:___c,selection:(endColumn:21,endLineNumber:8,positionColu
https://github.com/whentojump closed
https://github.com/llvm/llvm-project/pull/82464
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@@ -292,7 +295,7 @@ struct MapRegionCounters : public
RecursiveASTVisitor {
"contains an operation with a nested boolean expression. "
"Expression will not be covered");
Diag.Report(S->getBeginLoc(), DiagID);
-return fals
https://github.com/whentojump created
https://github.com/llvm/llvm-project/pull/82464
Currently, upon seeing [unsupported
decisions](https://clang.llvm.org/docs/SourceBasedCodeCoverage.html#mc-dc-instrumentation)
(more than 6 conditions, or split nesting), the post-visitor hook
`dataTraverseS
@@ -1973,6 +1981,8 @@ struct CounterCoverageMappingBuilder
void VisitBinLAnd(const BinaryOperator *E) {
bool IsRootNode = MCDCBuilder.isIdle();
+MCDCDebugCounter++;
whentojump wrote:
Hi thanks again for taking the look!
My intuition was to make the
whentojump wrote:
Hey @chapuni thanks for the comments!
This is indeed a draft. Since there're already reports regarding this issue,
let me close this one. I will try those linked patches and report if I have
findings.
Sorry for not searching for the ongoing effort and thanks for your work!
https://github.com/whentojump closed
https://github.com/llvm/llvm-project/pull/80098
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whentojump wrote:
Hi thanks for the prompt reply and the pointer! Will definitely check.
https://github.com/llvm/llvm-project/pull/80098
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https://github.com/whentojump created
https://github.com/llvm/llvm-project/pull/80098
## Problem
The behavior is described with this tiny example:
https://github.com/whentojump/llvm-mcdc-assertion-failure
Essentially, current MC/DC implementation cannot properly handle decisions that
involve
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