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Remove various equality checks between GetInternalMask() and LLVMMaskAllOn

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These were never kicking in, since GetInternalMask() always loads from the
mask storage memory.
This commit is contained in:
Matt Pharr
2012-06-06 10:02:04 -07:00
parent 967bfa9c92
commit 7b6bd90903
2 changed files with 5 additions and 21 deletions
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11
stmt.cpp
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@@ -494,16 +494,7 @@ IfStmt::emitMaskedTrueAndFalse(FunctionEmitContext *ctx, llvm::Value *oldMask,
void
IfStmt::emitVaryingIf(FunctionEmitContext *ctx, llvm::Value *ltest) const {
llvm::Value *oldMask = ctx->GetInternalMask();
if (ctx->GetFullMask() == LLVMMaskAllOn &&
!g->opt.disableCoherentControlFlow &&
!g->opt.disableMaskAllOnOptimizations) {
// We can tell that the mask is on statically at compile time; just
// emit code for the 'if test with the mask all on' path
llvm::BasicBlock *bDone = ctx->CreateBasicBlock("cif_done");
emitMaskAllOn(ctx, ltest, bDone);
ctx->SetCurrentBasicBlock(bDone);
}
else if (doAllCheck) {
if (doAllCheck) {
// We can't tell if the mask going into the if is all on at the
// compile time. Emit code to check for this and then either run
// the code for the 'all on' or the 'mixed' case depending on the