diff options
Diffstat (limited to 'llvm/test/Transforms/InstCombine/canonicalize-low-bit-mask-v2-and-icmp-ne-to-icmp-ugt.ll')
| -rw-r--r-- | llvm/test/Transforms/InstCombine/canonicalize-low-bit-mask-v2-and-icmp-ne-to-icmp-ugt.ll | 297 |
1 files changed, 0 insertions, 297 deletions
diff --git a/llvm/test/Transforms/InstCombine/canonicalize-low-bit-mask-v2-and-icmp-ne-to-icmp-ugt.ll b/llvm/test/Transforms/InstCombine/canonicalize-low-bit-mask-v2-and-icmp-ne-to-icmp-ugt.ll deleted file mode 100644 index 2826d2d33c1..00000000000 --- a/llvm/test/Transforms/InstCombine/canonicalize-low-bit-mask-v2-and-icmp-ne-to-icmp-ugt.ll +++ /dev/null @@ -1,297 +0,0 @@ -; NOTE: Assertions have been autogenerated by utils/update_test_checks.py -; RUN: opt < %s -instcombine -S | FileCheck %s - -; https://bugs.llvm.org/show_bug.cgi?id=38123 - -; Pattern: -; x & ~(-1 << y) != x -; Should be transformed into: -; x u> ~(-1 << y) -; That is then later transformed into: -; (x >> y) != 0 - -; ============================================================================ ; -; Basic positive tests -; ============================================================================ ; - -define i1 @p0(i8 %x, i8 %y) { -; CHECK-LABEL: @p0( -; CHECK-NEXT: [[X_HIGHBITS:%.*]] = lshr i8 [[X:%.*]], [[Y:%.*]] -; CHECK-NEXT: [[TMP1:%.*]] = icmp ne i8 [[X_HIGHBITS]], 0 -; CHECK-NEXT: ret i1 [[TMP1]] -; - %t0 = shl i8 -1, %y - %t1 = xor i8 %t0, -1 - %t2 = and i8 %t1, %x - %ret = icmp ne i8 %t2, %x - ret i1 %ret -} - -; ============================================================================ ; -; Vector tests -; ============================================================================ ; - -define <2 x i1> @p1_vec(<2 x i8> %x, <2 x i8> %y) { -; CHECK-LABEL: @p1_vec( -; CHECK-NEXT: [[X_HIGHBITS:%.*]] = lshr <2 x i8> [[X:%.*]], [[Y:%.*]] -; CHECK-NEXT: [[TMP1:%.*]] = icmp ne <2 x i8> [[X_HIGHBITS]], zeroinitializer -; CHECK-NEXT: ret <2 x i1> [[TMP1]] -; - %t0 = shl <2 x i8> <i8 -1, i8 -1>, %y - %t1 = xor <2 x i8> %t0, <i8 -1, i8 -1> - %t2 = and <2 x i8> %t1, %x - %ret = icmp ne <2 x i8> %t2, %x - ret <2 x i1> %ret -} - -define <3 x i1> @p2_vec_undef0(<3 x i8> %x, <3 x i8> %y) { -; CHECK-LABEL: @p2_vec_undef0( -; CHECK-NEXT: [[X_HIGHBITS:%.*]] = lshr <3 x i8> [[X:%.*]], [[Y:%.*]] -; CHECK-NEXT: [[TMP1:%.*]] = icmp ne <3 x i8> [[X_HIGHBITS]], zeroinitializer -; CHECK-NEXT: ret <3 x i1> [[TMP1]] -; - %t0 = shl <3 x i8> <i8 -1, i8 undef, i8 -1>, %y - %t1 = xor <3 x i8> %t0, <i8 -1, i8 -1, i8 -1> - %t2 = and <3 x i8> %t1, %x - %ret = icmp ne <3 x i8> %t2, %x - ret <3 x i1> %ret -} - -define <3 x i1> @p3_vec_undef0(<3 x i8> %x, <3 x i8> %y) { -; CHECK-LABEL: @p3_vec_undef0( -; CHECK-NEXT: [[X_HIGHBITS:%.*]] = lshr <3 x i8> [[X:%.*]], [[Y:%.*]] -; CHECK-NEXT: [[TMP1:%.*]] = icmp ne <3 x i8> [[X_HIGHBITS]], zeroinitializer -; CHECK-NEXT: ret <3 x i1> [[TMP1]] -; - %t0 = shl <3 x i8> <i8 -1, i8 -1, i8 -1>, %y - %t1 = xor <3 x i8> %t0, <i8 -1, i8 undef, i8 -1> - %t2 = and <3 x i8> %t1, %x - %ret = icmp ne <3 x i8> %t2, %x - ret <3 x i1> %ret -} - -define <3 x i1> @p4_vec_undef2(<3 x i8> %x, <3 x i8> %y) { -; CHECK-LABEL: @p4_vec_undef2( -; CHECK-NEXT: [[X_HIGHBITS:%.*]] = lshr <3 x i8> [[X:%.*]], [[Y:%.*]] -; CHECK-NEXT: [[TMP1:%.*]] = icmp ne <3 x i8> [[X_HIGHBITS]], zeroinitializer -; CHECK-NEXT: ret <3 x i1> [[TMP1]] -; - %t0 = shl <3 x i8> <i8 -1, i8 undef, i8 -1>, %y - %t1 = xor <3 x i8> %t0, <i8 -1, i8 undef, i8 -1> - %t2 = and <3 x i8> %t1, %x - %ret = icmp ne <3 x i8> %t2, %x - ret <3 x i1> %ret -} - -; ============================================================================ ; -; Commutativity tests. -; ============================================================================ ; - -declare i8 @gen8() - -define i1 @c0(i8 %y) { -; CHECK-LABEL: @c0( -; CHECK-NEXT: [[X:%.*]] = call i8 @gen8() -; CHECK-NEXT: [[X_HIGHBITS:%.*]] = lshr i8 [[X]], [[Y:%.*]] -; CHECK-NEXT: [[TMP1:%.*]] = icmp ne i8 [[X_HIGHBITS]], 0 -; CHECK-NEXT: ret i1 [[TMP1]] -; - %t0 = shl i8 -1, %y - %t1 = xor i8 %t0, -1 - %x = call i8 @gen8() - %t2 = and i8 %x, %t1 ; swapped order - %ret = icmp ne i8 %t2, %x - ret i1 %ret -} - -define i1 @c1(i8 %y) { -; CHECK-LABEL: @c1( -; CHECK-NEXT: [[X:%.*]] = call i8 @gen8() -; CHECK-NEXT: [[X_HIGHBITS:%.*]] = lshr i8 [[X]], [[Y:%.*]] -; CHECK-NEXT: [[TMP1:%.*]] = icmp ne i8 [[X_HIGHBITS]], 0 -; CHECK-NEXT: ret i1 [[TMP1]] -; - %t0 = shl i8 -1, %y - %t1 = xor i8 %t0, -1 - %x = call i8 @gen8() - %t2 = and i8 %t1, %x - %ret = icmp ne i8 %x, %t2 ; swapped order - ret i1 %ret -} - -define i1 @c2(i8 %y) { -; CHECK-LABEL: @c2( -; CHECK-NEXT: [[X:%.*]] = call i8 @gen8() -; CHECK-NEXT: [[X_HIGHBITS:%.*]] = lshr i8 [[X]], [[Y:%.*]] -; CHECK-NEXT: [[TMP1:%.*]] = icmp ne i8 [[X_HIGHBITS]], 0 -; CHECK-NEXT: ret i1 [[TMP1]] -; - %t0 = shl i8 -1, %y - %t1 = xor i8 %t0, -1 - %x = call i8 @gen8() - %t2 = and i8 %x, %t1 ; swapped order - %ret = icmp ne i8 %x, %t2 ; swapped order - ret i1 %ret -} - -; ============================================================================ ; -; One-use tests. We don't care about multi-uses here. -; ============================================================================ ; - -declare void @use8(i8) - -define i1 @oneuse0(i8 %x, i8 %y) { -; CHECK-LABEL: @oneuse0( -; CHECK-NEXT: [[T0:%.*]] = shl i8 -1, [[Y:%.*]] -; CHECK-NEXT: call void @use8(i8 [[T0]]) -; CHECK-NEXT: [[X_HIGHBITS:%.*]] = lshr i8 [[X:%.*]], [[Y]] -; CHECK-NEXT: [[TMP1:%.*]] = icmp ne i8 [[X_HIGHBITS]], 0 -; CHECK-NEXT: ret i1 [[TMP1]] -; - %t0 = shl i8 -1, %y - call void @use8(i8 %t0) - %t1 = xor i8 %t0, -1 - %t2 = and i8 %t1, %x - %ret = icmp ne i8 %t2, %x - ret i1 %ret -} - -define i1 @oneuse1(i8 %x, i8 %y) { -; CHECK-LABEL: @oneuse1( -; CHECK-NEXT: [[T0:%.*]] = shl i8 -1, [[Y:%.*]] -; CHECK-NEXT: [[T1:%.*]] = xor i8 [[T0]], -1 -; CHECK-NEXT: call void @use8(i8 [[T1]]) -; CHECK-NEXT: [[TMP1:%.*]] = icmp ult i8 [[T1]], [[X:%.*]] -; CHECK-NEXT: ret i1 [[TMP1]] -; - %t0 = shl i8 -1, %y - %t1 = xor i8 %t0, -1 - call void @use8(i8 %t1) - %t2 = and i8 %t1, %x - %ret = icmp ne i8 %t2, %x - ret i1 %ret -} - -define i1 @oneuse2(i8 %x, i8 %y) { -; CHECK-LABEL: @oneuse2( -; CHECK-NEXT: [[T0:%.*]] = shl i8 -1, [[Y:%.*]] -; CHECK-NEXT: [[T1:%.*]] = xor i8 [[T0]], -1 -; CHECK-NEXT: [[T2:%.*]] = and i8 [[T1]], [[X:%.*]] -; CHECK-NEXT: call void @use8(i8 [[T2]]) -; CHECK-NEXT: [[TMP1:%.*]] = icmp ult i8 [[T1]], [[X]] -; CHECK-NEXT: ret i1 [[TMP1]] -; - %t0 = shl i8 -1, %y - %t1 = xor i8 %t0, -1 - %t2 = and i8 %t1, %x - call void @use8(i8 %t2) - %ret = icmp ne i8 %t2, %x - ret i1 %ret -} - -define i1 @oneuse3(i8 %x, i8 %y) { -; CHECK-LABEL: @oneuse3( -; CHECK-NEXT: [[T0:%.*]] = shl i8 -1, [[Y:%.*]] -; CHECK-NEXT: call void @use8(i8 [[T0]]) -; CHECK-NEXT: [[T1:%.*]] = xor i8 [[T0]], -1 -; CHECK-NEXT: call void @use8(i8 [[T1]]) -; CHECK-NEXT: [[TMP1:%.*]] = icmp ult i8 [[T1]], [[X:%.*]] -; CHECK-NEXT: ret i1 [[TMP1]] -; - %t0 = shl i8 -1, %y - call void @use8(i8 %t0) - %t1 = xor i8 %t0, -1 - call void @use8(i8 %t1) - %t2 = and i8 %t1, %x - %ret = icmp ne i8 %t2, %x - ret i1 %ret -} - -define i1 @oneuse4(i8 %x, i8 %y) { -; CHECK-LABEL: @oneuse4( -; CHECK-NEXT: [[T0:%.*]] = shl i8 -1, [[Y:%.*]] -; CHECK-NEXT: call void @use8(i8 [[T0]]) -; CHECK-NEXT: [[T1:%.*]] = xor i8 [[T0]], -1 -; CHECK-NEXT: [[T2:%.*]] = and i8 [[T1]], [[X:%.*]] -; CHECK-NEXT: call void @use8(i8 [[T2]]) -; CHECK-NEXT: [[TMP1:%.*]] = icmp ult i8 [[T1]], [[X]] -; CHECK-NEXT: ret i1 [[TMP1]] -; - %t0 = shl i8 -1, %y - call void @use8(i8 %t0) - %t1 = xor i8 %t0, -1 - %t2 = and i8 %t1, %x - call void @use8(i8 %t2) - %ret = icmp ne i8 %t2, %x - ret i1 %ret -} - -define i1 @oneuse5(i8 %x, i8 %y) { -; CHECK-LABEL: @oneuse5( -; CHECK-NEXT: [[T0:%.*]] = shl i8 -1, [[Y:%.*]] -; CHECK-NEXT: call void @use8(i8 [[T0]]) -; CHECK-NEXT: [[T1:%.*]] = xor i8 [[T0]], -1 -; CHECK-NEXT: call void @use8(i8 [[T1]]) -; CHECK-NEXT: [[T2:%.*]] = and i8 [[T1]], [[X:%.*]] -; CHECK-NEXT: call void @use8(i8 [[T2]]) -; CHECK-NEXT: [[TMP1:%.*]] = icmp ult i8 [[T1]], [[X]] -; CHECK-NEXT: ret i1 [[TMP1]] -; - %t0 = shl i8 -1, %y - call void @use8(i8 %t0) - %t1 = xor i8 %t0, -1 - call void @use8(i8 %t1) - %t2 = and i8 %t1, %x - call void @use8(i8 %t2) - %ret = icmp ne i8 %t2, %x - ret i1 %ret -} - -; ============================================================================ ; -; Negative tests -; ============================================================================ ; - -define i1 @n0(i8 %x, i8 %y, i8 %notx) { -; CHECK-LABEL: @n0( -; CHECK-NEXT: [[T0:%.*]] = shl i8 -1, [[Y:%.*]] -; CHECK-NEXT: [[T1:%.*]] = xor i8 [[T0]], -1 -; CHECK-NEXT: [[T2:%.*]] = and i8 [[T1]], [[X:%.*]] -; CHECK-NEXT: [[RET:%.*]] = icmp ne i8 [[T2]], [[NOTX:%.*]] -; CHECK-NEXT: ret i1 [[RET]] -; - %t0 = shl i8 -1, %y - %t1 = xor i8 %t0, -1 - %t2 = and i8 %t1, %x - %ret = icmp ne i8 %t2, %notx ; not %x - ret i1 %ret -} - -define i1 @n1(i8 %x, i8 %y) { -; CHECK-LABEL: @n1( -; CHECK-NEXT: [[T0:%.*]] = shl i8 1, [[Y:%.*]] -; CHECK-NEXT: [[T1:%.*]] = xor i8 [[T0]], -1 -; CHECK-NEXT: [[T2:%.*]] = and i8 [[T1]], [[X:%.*]] -; CHECK-NEXT: [[RET:%.*]] = icmp ne i8 [[T2]], [[X]] -; CHECK-NEXT: ret i1 [[RET]] -; - %t0 = shl i8 1, %y ; not -1 - %t1 = xor i8 %t0, -1 - %t2 = and i8 %t1, %x - %ret = icmp ne i8 %t2, %x - ret i1 %ret -} - -define i1 @n2(i8 %x, i8 %y) { -; CHECK-LABEL: @n2( -; CHECK-NEXT: [[T0:%.*]] = shl i8 -1, [[Y:%.*]] -; CHECK-NEXT: [[T1:%.*]] = xor i8 [[T0]], 1 -; CHECK-NEXT: [[T2:%.*]] = and i8 [[T1]], [[X:%.*]] -; CHECK-NEXT: [[RET:%.*]] = icmp ne i8 [[T2]], [[X]] -; CHECK-NEXT: ret i1 [[RET]] -; - %t0 = shl i8 -1, %y - %t1 = xor i8 %t0, 1 ; not -1 - %t2 = and i8 %t1, %x - %ret = icmp ne i8 %t2, %x - ret i1 %ret -} |
