diff options
Diffstat (limited to 'llvm/unittests/Analysis/ValueTrackingTest.cpp')
| -rw-r--r-- | llvm/unittests/Analysis/ValueTrackingTest.cpp | 84 |
1 files changed, 53 insertions, 31 deletions
diff --git a/llvm/unittests/Analysis/ValueTrackingTest.cpp b/llvm/unittests/Analysis/ValueTrackingTest.cpp index b13948adad7..c4adde4abe3 100644 --- a/llvm/unittests/Analysis/ValueTrackingTest.cpp +++ b/llvm/unittests/Analysis/ValueTrackingTest.cpp @@ -156,8 +156,8 @@ TEST_F(MatchSelectPatternTest, FMinMismatchConstantZero1) { " %A = select i1 %1, float 0.0, float %a\n" " ret float %A\n" "}\n"); - // FIXME: The sign of zero doesn't matter in fcmp. - expectPattern({SPF_UNKNOWN, SPNB_NA, false}); + // The sign of zero doesn't matter in fcmp. + expectPattern({SPF_FMINNUM, SPNB_RETURNS_NAN, true}); } TEST_F(MatchSelectPatternTest, FMinMismatchConstantZero2) { @@ -167,8 +167,8 @@ TEST_F(MatchSelectPatternTest, FMinMismatchConstantZero2) { " %A = select i1 %1, float 0.0, float %a\n" " ret float %A\n" "}\n"); - // FIXME: The sign of zero doesn't matter in fcmp. - expectPattern({SPF_UNKNOWN, SPNB_NA, false}); + // The sign of zero doesn't matter in fcmp. + expectPattern({SPF_FMINNUM, SPNB_RETURNS_NAN, false}); } TEST_F(MatchSelectPatternTest, FMinMismatchConstantZero3) { @@ -178,8 +178,8 @@ TEST_F(MatchSelectPatternTest, FMinMismatchConstantZero3) { " %A = select i1 %1, float -0.0, float %a\n" " ret float %A\n" "}\n"); - // FIXME: The sign of zero doesn't matter in fcmp. - expectPattern({SPF_UNKNOWN, SPNB_NA, false}); + // The sign of zero doesn't matter in fcmp. + expectPattern({SPF_FMINNUM, SPNB_RETURNS_NAN, true}); } TEST_F(MatchSelectPatternTest, FMinMismatchConstantZero4) { @@ -189,8 +189,8 @@ TEST_F(MatchSelectPatternTest, FMinMismatchConstantZero4) { " %A = select i1 %1, float -0.0, float %a\n" " ret float %A\n" "}\n"); - // FIXME: The sign of zero doesn't matter in fcmp. - expectPattern({SPF_UNKNOWN, SPNB_NA, false}); + // The sign of zero doesn't matter in fcmp. + expectPattern({SPF_FMINNUM, SPNB_RETURNS_NAN, false}); } TEST_F(MatchSelectPatternTest, FMinMismatchConstantZero5) { @@ -200,8 +200,8 @@ TEST_F(MatchSelectPatternTest, FMinMismatchConstantZero5) { " %A = select i1 %1, float %a, float 0.0\n" " ret float %A\n" "}\n"); - // FIXME: The sign of zero doesn't matter in fcmp. - expectPattern({SPF_UNKNOWN, SPNB_NA, false}); + // The sign of zero doesn't matter in fcmp. + expectPattern({SPF_FMINNUM, SPNB_RETURNS_OTHER, false}); } TEST_F(MatchSelectPatternTest, FMinMismatchConstantZero6) { @@ -211,8 +211,8 @@ TEST_F(MatchSelectPatternTest, FMinMismatchConstantZero6) { " %A = select i1 %1, float %a, float 0.0\n" " ret float %A\n" "}\n"); - // FIXME: The sign of zero doesn't matter in fcmp. - expectPattern({SPF_UNKNOWN, SPNB_NA, false}); + // The sign of zero doesn't matter in fcmp. + expectPattern({SPF_FMINNUM, SPNB_RETURNS_OTHER, true}); } TEST_F(MatchSelectPatternTest, FMinMismatchConstantZero7) { @@ -222,8 +222,8 @@ TEST_F(MatchSelectPatternTest, FMinMismatchConstantZero7) { " %A = select i1 %1, float %a, float -0.0\n" " ret float %A\n" "}\n"); - // FIXME: The sign of zero doesn't matter in fcmp. - expectPattern({SPF_UNKNOWN, SPNB_NA, false}); + // The sign of zero doesn't matter in fcmp. + expectPattern({SPF_FMINNUM, SPNB_RETURNS_OTHER, false}); } TEST_F(MatchSelectPatternTest, FMinMismatchConstantZero8) { @@ -233,8 +233,8 @@ TEST_F(MatchSelectPatternTest, FMinMismatchConstantZero8) { " %A = select i1 %1, float %a, float -0.0\n" " ret float %A\n" "}\n"); - // FIXME: The sign of zero doesn't matter in fcmp. - expectPattern({SPF_UNKNOWN, SPNB_NA, false}); + // The sign of zero doesn't matter in fcmp. + expectPattern({SPF_FMINNUM, SPNB_RETURNS_OTHER, true}); } TEST_F(MatchSelectPatternTest, FMaxMismatchConstantZero1) { @@ -244,8 +244,8 @@ TEST_F(MatchSelectPatternTest, FMaxMismatchConstantZero1) { " %A = select i1 %1, float 0.0, float %a\n" " ret float %A\n" "}\n"); - // FIXME: The sign of zero doesn't matter in fcmp. - expectPattern({SPF_UNKNOWN, SPNB_NA, false}); + // The sign of zero doesn't matter in fcmp. + expectPattern({SPF_FMAXNUM, SPNB_RETURNS_NAN, true}); } TEST_F(MatchSelectPatternTest, FMaxMismatchConstantZero2) { @@ -255,8 +255,8 @@ TEST_F(MatchSelectPatternTest, FMaxMismatchConstantZero2) { " %A = select i1 %1, float 0.0, float %a\n" " ret float %A\n" "}\n"); - // FIXME: The sign of zero doesn't matter in fcmp. - expectPattern({SPF_UNKNOWN, SPNB_NA, false}); + // The sign of zero doesn't matter in fcmp. + expectPattern({SPF_FMAXNUM, SPNB_RETURNS_NAN, false}); } TEST_F(MatchSelectPatternTest, FMaxMismatchConstantZero3) { @@ -266,8 +266,8 @@ TEST_F(MatchSelectPatternTest, FMaxMismatchConstantZero3) { " %A = select i1 %1, float -0.0, float %a\n" " ret float %A\n" "}\n"); - // FIXME: The sign of zero doesn't matter in fcmp. - expectPattern({SPF_UNKNOWN, SPNB_NA, false}); + // The sign of zero doesn't matter in fcmp. + expectPattern({SPF_FMAXNUM, SPNB_RETURNS_NAN, true}); } TEST_F(MatchSelectPatternTest, FMaxMismatchConstantZero4) { @@ -277,8 +277,8 @@ TEST_F(MatchSelectPatternTest, FMaxMismatchConstantZero4) { " %A = select i1 %1, float -0.0, float %a\n" " ret float %A\n" "}\n"); - // FIXME: The sign of zero doesn't matter in fcmp. - expectPattern({SPF_UNKNOWN, SPNB_NA, false}); + // The sign of zero doesn't matter in fcmp. + expectPattern({SPF_FMAXNUM, SPNB_RETURNS_NAN, false}); } TEST_F(MatchSelectPatternTest, FMaxMismatchConstantZero5) { @@ -288,8 +288,8 @@ TEST_F(MatchSelectPatternTest, FMaxMismatchConstantZero5) { " %A = select i1 %1, float %a, float 0.0\n" " ret float %A\n" "}\n"); - // FIXME: The sign of zero doesn't matter in fcmp. - expectPattern({SPF_UNKNOWN, SPNB_NA, false}); + // The sign of zero doesn't matter in fcmp. + expectPattern({SPF_FMAXNUM, SPNB_RETURNS_OTHER, false}); } TEST_F(MatchSelectPatternTest, FMaxMismatchConstantZero6) { @@ -299,8 +299,8 @@ TEST_F(MatchSelectPatternTest, FMaxMismatchConstantZero6) { " %A = select i1 %1, float %a, float 0.0\n" " ret float %A\n" "}\n"); - // FIXME: The sign of zero doesn't matter in fcmp. - expectPattern({SPF_UNKNOWN, SPNB_NA, false}); + // The sign of zero doesn't matter in fcmp. + expectPattern({SPF_FMAXNUM, SPNB_RETURNS_OTHER, true}); } TEST_F(MatchSelectPatternTest, FMaxMismatchConstantZero7) { @@ -310,8 +310,8 @@ TEST_F(MatchSelectPatternTest, FMaxMismatchConstantZero7) { " %A = select i1 %1, float %a, float -0.0\n" " ret float %A\n" "}\n"); - // FIXME: The sign of zero doesn't matter in fcmp. - expectPattern({SPF_UNKNOWN, SPNB_NA, false}); + // The sign of zero doesn't matter in fcmp. + expectPattern({SPF_FMAXNUM, SPNB_RETURNS_OTHER, false}); } TEST_F(MatchSelectPatternTest, FMaxMismatchConstantZero8) { @@ -321,7 +321,29 @@ TEST_F(MatchSelectPatternTest, FMaxMismatchConstantZero8) { " %A = select i1 %1, float %a, float -0.0\n" " ret float %A\n" "}\n"); - // FIXME: The sign of zero doesn't matter in fcmp. + // The sign of zero doesn't matter in fcmp. + expectPattern({SPF_FMAXNUM, SPNB_RETURNS_OTHER, true}); +} + +TEST_F(MatchSelectPatternTest, FMinMismatchConstantZeroVecUndef) { + parseAssembly( + "define <2 x float> @test(<2 x float> %a) {\n" + " %1 = fcmp ogt <2 x float> %a, <float -0.0, float -0.0>\n" + " %A = select <2 x i1> %1, <2 x float> <float undef, float 0.0>, <2 x float> %a\n" + " ret <2 x float> %A\n" + "}\n"); + // An undef in a vector constant can not be back-propagated for this analysis. + expectPattern({SPF_UNKNOWN, SPNB_NA, false}); +} + +TEST_F(MatchSelectPatternTest, FMaxMismatchConstantZeroVecUndef) { + parseAssembly( + "define <2 x float> @test(<2 x float> %a) {\n" + " %1 = fcmp ogt <2 x float> %a, zeroinitializer\n" + " %A = select <2 x i1> %1, <2 x float> %a, <2 x float> <float -0.0, float undef>\n" + " ret <2 x float> %A\n" + "}\n"); + // An undef in a vector constant can not be back-propagated for this analysis. expectPattern({SPF_UNKNOWN, SPNB_NA, false}); } |
