BeeEngine/glslang-zig
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Fix back-branch target for do-while loops.

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To ensure back branches always go to a header block, create a header
block even for !testFirst loops.  Then unify common code between the
testFirst/!testFirst cases.

Generate the header-block code first, so update golden files.

Realize that certain infinite loops generate invalid SPIR-V, so put a
TODO to instead abort code generation in such cases.

Change-Id: I1e173c8f73daad186cfc666b7d72bd563ed7665d
This commit is contained in:
Dejan Mircevski 2016-01-11 15:57:11 -05:00
parent c8fbbab419
commit 832c65c33b
20 changed files with 2062 additions and 2029 deletions
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2
SPIRV/SpvBuilder.cpp
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@ -1763,7 +1763,7 @@ Block& Builder::makeNewBlock()
Builder::LoopBlocks& Builder::makeNewLoop()
{
loops.push({makeNewBlock(), makeNewBlock(), makeNewBlock()});
loops.push({makeNewBlock(), makeNewBlock(), makeNewBlock(), makeNewBlock()});
return loops.top();
}