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| author | Nadav Rotem <nadav.rotem@intel.com> | 2012-04-24 20:18:49 +0000 |
|---|---|---|
| committer | Nadav Rotem <nadav.rotem@intel.com> | 2012-04-24 20:18:49 +0000 |
| commit | 450d69a5eed4ed1be26d7a64be66106e665b4f37 (patch) | |
| tree | 6a44f623810f3e73ae2c5711e9219c99e40219b9 | |
| parent | d50c3b2c5726fd700b7b632810cbe98282625186 (diff) | |
| download | bcm5719-llvm-450d69a5eed4ed1be26d7a64be66106e665b4f37.tar.gz bcm5719-llvm-450d69a5eed4ed1be26d7a64be66106e665b4f37.zip | |
ConstantFoldSelectInstruction swapped the operands of the select.
Fix 12592. Patch by Matt Pharr.
llvm-svn: 155480
| -rw-r--r-- | llvm/lib/VMCore/ConstantFold.cpp | 2 | ||||
| -rw-r--r-- | llvm/test/Transforms/InstCombine/2012-04-24-vselect.ll | 13 |
2 files changed, 14 insertions, 1 deletions
diff --git a/llvm/lib/VMCore/ConstantFold.cpp b/llvm/lib/VMCore/ConstantFold.cpp index b743287adf3..9b1c756b7de 100644 --- a/llvm/lib/VMCore/ConstantFold.cpp +++ b/llvm/lib/VMCore/ConstantFold.cpp @@ -700,7 +700,7 @@ Constant *llvm::ConstantFoldSelectInstruction(Constant *Cond, ConstantInt *Cond = dyn_cast<ConstantInt>(CondV->getOperand(i)); if (Cond == 0) break; - Constant *Res = (Cond->getZExtValue() ? V2 : V1)->getAggregateElement(i); + Constant *Res = (Cond->getZExtValue() ? V1 : V2)->getAggregateElement(i); if (Res == 0) break; Result.push_back(Res); } diff --git a/llvm/test/Transforms/InstCombine/2012-04-24-vselect.ll b/llvm/test/Transforms/InstCombine/2012-04-24-vselect.ll new file mode 100644 index 00000000000..8d2de2b2431 --- /dev/null +++ b/llvm/test/Transforms/InstCombine/2012-04-24-vselect.ll @@ -0,0 +1,13 @@ +; RUN: opt -instcombine -S < %s | FileCheck %s + +; CHECK: @foo +; CHECK: <i32 1, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0> + +define <8 x i32> @foo() nounwind { +entry: + %v1.i = select <8 x i1> <i1 true, i1 false, i1 false, i1 false, i1 false, i1 false, i1 false, i1 false>, + <8 x i32> <i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1>, + <8 x i32> <i32 0, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0> + ret <8 x i32> %v1.i +} + |
