From 38d2ff4ac0133c138f7d372f0ea6d2c4e1f24c4f Mon Sep 17 00:00:00 2001 From: Benjamin Kramer Date: Sun, 11 Mar 2012 19:32:35 +0000 Subject: [PATCH] Replace a hand-coded leading one counting loop with the magic from MathExtras.h. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152545 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Support/APInt.cpp | 9 +-------- 1 file changed, 1 insertion(+), 8 deletions(-) diff --git a/lib/Support/APInt.cpp b/lib/Support/APInt.cpp index 031bbb88824..a60bff33063 100644 --- a/lib/Support/APInt.cpp +++ b/lib/Support/APInt.cpp @@ -723,14 +723,7 @@ unsigned APInt::countLeadingZerosSlowCase() const { } static unsigned countLeadingOnes_64(uint64_t V, unsigned skip) { - unsigned Count = 0; - if (skip) - V <<= skip; - while (V && (V & (1ULL << 63))) { - Count++; - V <<= 1; - } - return Count; + return CountLeadingOnes_64(V << skip); } unsigned APInt::countLeadingOnes() const { -- 2.34.1