[clang] Fix coverage when `/fo` is used (PR #88201)

[Vlad Serebrennikov via cfe-commits]

https://github.com/Endilll edited 
https://github.com/llvm/llvm-project/pull/88201
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[clang] Fix coverage when /fo is used (PR #88201)

[via cfe-commits]

llvmbot wrote:




@llvm/pr-subscribers-clang

Author: None (pdagobert)


Changes

Fixes https://github.com/llvm/llvm-project/issues/87304

---
Full diff: https://github.com/llvm/llvm-project/pull/88201.diff


1 Files Affected:

- (modified) clang/lib/Driver/ToolChains/Clang.cpp (+4) 


``diff
diff --git a/clang/lib/Driver/ToolChains/Clang.cpp 
b/clang/lib/Driver/ToolChains/Clang.cpp
index 766a9b91e3c0ad..44d18acd25a589 100644
--- a/clang/lib/Driver/ToolChains/Clang.cpp
+++ b/clang/lib/Driver/ToolChains/Clang.cpp
@@ -802,6 +802,10 @@ static void addPGOAndCoverageFlags(const ToolChain , 
Compilation ,
 } else if (Arg *FinalOutput =
C.getArgs().getLastArg(options::OPT__SLASH_Fo)) {
   CoverageFilename = FinalOutput->getValue();
+  StringRef V = FinalOutput->getValue();
+  if (llvm::sys::path::is_separator(V.back())) {
+CoverageFilename += llvm::sys::path::filename(Output.getBaseInput());
+  }
 } else if (Arg *FinalOutput = C.getArgs().getLastArg(options::OPT_o)) {
   CoverageFilename = FinalOutput->getValue();
 } else {

``




https://github.com/llvm/llvm-project/pull/88201
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[clang] Fix coverage when /fo is used (PR #88201)

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https://github.com/llvm/llvm-project/pull/88201
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[clang] Fix coverage when /fo is used (PR #88201)

[via cfe-commits]

https://github.com/pdagobert created 
https://github.com/llvm/llvm-project/pull/88201

Fixes https://github.com/llvm/llvm-project/issues/87304

>From 6db0e01e198de9e5ee4055f9433150818c429c10 Mon Sep 17 00:00:00 2001
From: pdagobert 
Date: Tue, 9 Apr 2024 23:10:58 +0200
Subject: [PATCH] Fix coverage when /fo is used

---
 clang/lib/Driver/ToolChains/Clang.cpp | 4 
 1 file changed, 4 insertions(+)

diff --git a/clang/lib/Driver/ToolChains/Clang.cpp 
b/clang/lib/Driver/ToolChains/Clang.cpp
index 766a9b91e3c0ad..44d18acd25a589 100644
--- a/clang/lib/Driver/ToolChains/Clang.cpp
+++ b/clang/lib/Driver/ToolChains/Clang.cpp
@@ -802,6 +802,10 @@ static void addPGOAndCoverageFlags(const ToolChain , 
Compilation ,
 } else if (Arg *FinalOutput =
C.getArgs().getLastArg(options::OPT__SLASH_Fo)) {
   CoverageFilename = FinalOutput->getValue();
+  StringRef V = FinalOutput->getValue();
+  if (llvm::sys::path::is_separator(V.back())) {
+CoverageFilename += llvm::sys::path::filename(Output.getBaseInput());
+  }
 } else if (Arg *FinalOutput = C.getArgs().getLastArg(options::OPT_o)) {
   CoverageFilename = FinalOutput->getValue();
 } else {

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