From: Davide Italiano <davide@freebsd.org>
Date: Tue, 21 Nov 2017 00:21:52 +0000 (+0000)
Subject: [SCCP] If we replace with a constant, we can't replace with a range.
X-Git-Tag: llvmorg-6.0.0-rc1~2957
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=5df8080011a71042a1684317f8f297516e6f4458;p=platform%2Fupstream%2Fllvm.git

[SCCP] If we replace with a constant, we can't replace with a range.

This microoptimization is NFC.

llvm-svn: 318711
---

diff --git a/llvm/lib/Transforms/Scalar/SCCP.cpp b/llvm/lib/Transforms/Scalar/SCCP.cpp
index 1e4bf2e..192ba13 100644
--- a/llvm/lib/Transforms/Scalar/SCCP.cpp
+++ b/llvm/lib/Transforms/Scalar/SCCP.cpp
@@ -1866,8 +1866,10 @@ static bool runIPSCCP(Module &M, const DataLayout &DL,
     if (Solver.isBlockExecutable(&F.front()))
       for (Function::arg_iterator AI = F.arg_begin(), E = F.arg_end(); AI != E;
            ++AI) {
-        if (!AI->use_empty() && tryToReplaceWithConstant(Solver, &*AI))
+        if (!AI->use_empty() && tryToReplaceWithConstant(Solver, &*AI)) {
           ++IPNumArgsElimed;
+          continue;
+        }
 
         if (!AI->use_empty() && tryToReplaceWithConstantRange(Solver, &*AI))
           ++IPNumRangeInfoUsed;