[llvm-commits] [llvm] r37878 - in /llvm/trunk: lib/Transforms/Scalar/GVNPRE.cpp test/Transforms/GVNPRE/2007-07-04-SelectInst.ll

[Owen Anderson]

Author: resistor
Date: Wed Jul  4 17:33:23 2007
New Revision: 37878

URL: http://llvm.org/viewvc/llvm-project?rev=37878&view=rev
Log:
Fix another bug, this time in PREing select instructions.

Added:
    llvm/trunk/test/Transforms/GVNPRE/2007-07-04-SelectInst.ll
Modified:
    llvm/trunk/lib/Transforms/Scalar/GVNPRE.cpp

Modified: llvm/trunk/lib/Transforms/Scalar/GVNPRE.cpp
URL: 
http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Scalar/GVNPRE.cpp?rev=37878&r1=37877&r2=37878&view=diff

==============================================================================
--- llvm/trunk/lib/Transforms/Scalar/GVNPRE.cpp (original)
+++ llvm/trunk/lib/Transforms/Scalar/GVNPRE.cpp Wed Jul  4 17:33:23 2007
@@ -1586,8 +1586,7 @@
         newVal = new ExtractElementInst(s1, s2, S->getName()+".gvnpre",
                                         (*PI)->getTerminator());
       else if (SelectInst* S = dyn_cast<SelectInst>(U))
-        newVal = new SelectInst(S->getCondition(), S->getTrueValue(),
-                                S->getFalseValue(), S->getName()+".gvnpre",
+        newVal = new SelectInst(s1, s2, s3, S->getName()+".gvnpre",
                                 (*PI)->getTerminator());
       else if (CastInst* C = dyn_cast<CastInst>(U))
         newVal = CastInst::create(C->getOpcode(), s1, C->getType(),

Added: llvm/trunk/test/Transforms/GVNPRE/2007-07-04-SelectInst.ll
URL: 
http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Transforms/GVNPRE/2007-07-04-SelectInst.ll?rev=37878&view=auto

==============================================================================
--- llvm/trunk/test/Transforms/GVNPRE/2007-07-04-SelectInst.ll (added)
+++ llvm/trunk/test/Transforms/GVNPRE/2007-07-04-SelectInst.ll Wed Jul  4 
17:33:23 2007
@@ -0,0 +1,18 @@
+; RUN: llvm-as < %s | opt -gvnpre | llvm-dis
+
+define void @set_depth_values(i32 %level) {
+cond_true90:           ; preds = %cond_next84
+       br i1 false, label %cond_true105, label %cond_true151
+
+cond_true105:          ; preds = %cond_true90
+       %tmp132 = add i32 %level, -3            ; <i32> [#uses=2]
+       %tmp133 = icmp sgt i32 %tmp132, 0               ; <i1> [#uses=1]
+       %max134 = select i1 %tmp133, i32 %tmp132, i32 1         ; <i32> 
[#uses=0]
+       br label %cond_true151
+
+cond_true151:          ; preds = %cond_true140, %cond_true105
+       %tmp153 = add i32 %level, -3            ; <i32> [#uses=2]
+       %tmp154 = icmp sgt i32 %tmp153, 0               ; <i1> [#uses=1]
+       %max155 = select i1 %tmp154, i32 %tmp153, i32 1         ; <i32> 
[#uses=0]
+       ret void
+}


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