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Remapper: remove debug info for IDs stripped in other passes

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If some DCE is performed such as removing dead functions, then even
if we are NOT stripping debug info, we still must remove the debug
opcodes that refer to the now-dead IDs.

Also, this adds a small change to perform no ID remapping if none
is requested, making spirv-remap properly be a no-op if no options
are given.
This commit is contained in:
steve-lunarg 2016-12-09 11:13:23 -07:00
parent 906cc21816
commit 297754cfe8
11 changed files with 246 additions and 219 deletions
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4
SPIRV/SPVRemapper.h
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@ -239,7 +239,8 @@ private:
void applyMap(); // remap per local name map
void mapRemainder(); // map any IDs we haven't touched yet
void stripDebug(); // strip debug info
void stripDebug(); // strip all debug info
void stripDeadRefs(); // strips debug info for now-dead references after DCE
void strip(); // remove debug symbols
std::vector<spirword_t> spv; // SPIR words
@ -264,7 +265,6 @@ private:
// Function start and end. use unordered_map because we'll have
// many fewer functions than IDs.
std::unordered_map<spv::Id, range_t> fnPos;
std::unordered_map<spv::Id, range_t> fnPosDCE; // deleted functions
// Which functions are called, anywhere in the module, with a call count
std::unordered_map<spv::Id, int> fnCalls;