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Merging r232443:

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r232443 | mail | 2015-03-16 20:18:51 -0400 (Mon, 16 Mar 2015) | 4 lines

llvm-cov: Warn instead of error if a .gcda has arcs from an exit block

Patch by Vanderson M. Rosario. Thanks!

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_36@236304 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Tom Stellard committed 2015-05-01 02:43:16 +00:00
1 parent a0a6defa18
commit 7aa6bebe9c
4 files changed
+7 -1
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lib/IR/GCOV.cpp
+3 -1
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@@ -263,10 +263,12 @@ bool GCOVFunction::readGCDA(GCOVBuffer &Buff, GCOV::GCOVVersion Version) {
// required to combine the edge counts that are contained in the GCDA file. // required to combine the edge counts that are contained in the GCDA file.
for (uint32_t BlockNo = 0; Count > 0; ++BlockNo) { for (uint32_t BlockNo = 0; Count > 0; ++BlockNo) {
// The last block is always reserved for exit block // The last block is always reserved for exit block
if (BlockNo >= Blocks.size()-1) { if (BlockNo >= Blocks.size()) {
errs() << "Unexpected number of edges (in " << Name << ").\n"; errs() << "Unexpected number of edges (in " << Name << ").\n";
return false; return false;
} }
if (BlockNo == Blocks.size() - 1)
errs() << "(" << Name << ") has arcs from exit block.\n";
GCOVBlock &Block = *Blocks[BlockNo]; GCOVBlock &Block = *Blocks[BlockNo];
for (size_t EdgeNo = 0, End = Block.getNumDstEdges(); EdgeNo < End; for (size_t EdgeNo = 0, End = Block.getNumDstEdges(); EdgeNo < End;
++EdgeNo) { ++EdgeNo) {
test/tools/llvm-cov/Inputs/test_exit_block_arcs.gcda
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test/tools/llvm-cov/Inputs/test_exit_block_arcs.gcno
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test/tools/llvm-cov/llvm-cov.test
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@@ -110,4 +110,8 @@ RUN: llvm-cov test.c -gcda=test_file_checksum_fail.gcda
# Bad function checksum on gcda # Bad function checksum on gcda
RUN: llvm-cov test.c -gcda=test_func_checksum_fail.gcda RUN: llvm-cov test.c -gcda=test_func_checksum_fail.gcda
# Has arcs from exit blocks
RUN: llvm-cov test_exit_block_arcs.c 2>&1 | FileCheck %s -check-prefix=EXIT_BLOCK_ARCS
EXIT_BLOCK_ARCS: (main) has arcs from exit block.
XFAIL: powerpc64-, s390x, mips-, mips64-, sparc XFAIL: powerpc64-, s390x, mips-, mips64-, sparc