From 04418d5617f6ab7015c5cf7b905b4775a5219f4b Mon Sep 17 00:00:00 2001 From: "Alon Zakai (kripken)" Date: Mon, 31 Jul 2017 14:11:33 -0700 Subject: use effective shifts in more places in optimize-instructions --- src/passes/OptimizeInstructions.cpp | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'src/passes/OptimizeInstructions.cpp') diff --git a/src/passes/OptimizeInstructions.cpp b/src/passes/OptimizeInstructions.cpp index 4fd7cbe8d..578a01f11 100644 --- a/src/passes/OptimizeInstructions.cpp +++ b/src/passes/OptimizeInstructions.cpp @@ -779,7 +779,7 @@ private: return; } else if (binary->op == ShlInt32) { if (auto* c = binary->right->dynCast()) { - seek(binary->left, mul * Pow2(c->value.geti32())); + seek(binary->left, mul * Pow2(Bits::getEffectiveShifts(c))); return; } } else if (binary->op == MulInt32) { @@ -836,7 +836,7 @@ private: } } else if (curr->op == ShlInt32) { // shifting a 0 is a 0, unless the shift has side effects - if (left && left->value.geti32() == 0 && !EffectAnalyzer(passOptions, curr->right).hasSideEffects()) { + if (left && Bits::getEffectiveShifts(left) == 0 && !EffectAnalyzer(passOptions, curr->right).hasSideEffects()) { replaceCurrent(left); return; } -- cgit v1.2.3