From b35c585a9a8185ca7de378a0d45ebb68e385e7a0 Mon Sep 17 00:00:00 2001 From: Florian Hahn Date: Fri, 27 Dec 2019 17:38:18 +0000 Subject: [ConstantRange] Respect destination bitwidth for cast results. We returning a full set, we should use ResultBitWidth. Otherwise we might it assertions when the resulting constant ranges are used later on. Reviewers: nikic, spatel, reames Reviewed By: nikic Differential Revision: https://reviews.llvm.org/D71937 --- llvm/unittests/IR/ConstantRangeTest.cpp | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) (limited to 'llvm/unittests/IR/ConstantRangeTest.cpp') diff --git a/llvm/unittests/IR/ConstantRangeTest.cpp b/llvm/unittests/IR/ConstantRangeTest.cpp index d8befa88c84..2e5ab82f256 100644 --- a/llvm/unittests/IR/ConstantRangeTest.cpp +++ b/llvm/unittests/IR/ConstantRangeTest.cpp @@ -2295,4 +2295,26 @@ TEST_F(ConstantRangeTest, Abs) { }); } +TEST_F(ConstantRangeTest, castOps) { + ConstantRange A(APInt(16, 66), APInt(16, 128)); + ConstantRange FpToI8 = A.castOp(Instruction::FPToSI, 8); + EXPECT_EQ(8u, FpToI8.getBitWidth()); + EXPECT_TRUE(FpToI8.isFullSet()); + + ConstantRange FpToI16 = A.castOp(Instruction::FPToSI, 16); + EXPECT_EQ(16u, FpToI16.getBitWidth()); + EXPECT_EQ(A, FpToI16); + + ConstantRange FPExtToDouble = A.castOp(Instruction::FPExt, 64); + EXPECT_EQ(64u, FPExtToDouble.getBitWidth()); + EXPECT_TRUE(FPExtToDouble.isFullSet()); + + ConstantRange PtrToInt = A.castOp(Instruction::PtrToInt, 64); + EXPECT_EQ(64u, PtrToInt.getBitWidth()); + EXPECT_TRUE(PtrToInt.isFullSet()); + + ConstantRange IntToPtr = A.castOp(Instruction::IntToPtr, 64); + EXPECT_EQ(64u, IntToPtr.getBitWidth()); + EXPECT_TRUE(IntToPtr.isFullSet()); +} } // anonymous namespace -- cgit v1.2.3