diff options
Diffstat (limited to 'llvm/test/Transforms/InstCombine/unfold-masked-merge-with-const-mask-scalar.ll')
| -rw-r--r-- | llvm/test/Transforms/InstCombine/unfold-masked-merge-with-const-mask-scalar.ll | 289 |
1 files changed, 0 insertions, 289 deletions
diff --git a/llvm/test/Transforms/InstCombine/unfold-masked-merge-with-const-mask-scalar.ll b/llvm/test/Transforms/InstCombine/unfold-masked-merge-with-const-mask-scalar.ll deleted file mode 100644 index b3bc74d3cfe..00000000000 --- a/llvm/test/Transforms/InstCombine/unfold-masked-merge-with-const-mask-scalar.ll +++ /dev/null @@ -1,289 +0,0 @@ -; NOTE: Assertions have been autogenerated by utils/update_test_checks.py -; RUN: opt < %s -instcombine -S | FileCheck %s - -; If we have a masked merge, in the form of: (M is constant) -; ((x ^ y) & M) ^ y -; Unfold it to -; (x & M) | (y & ~M) - -define i4 @scalar0 (i4 %x, i4 %y) { -; CHECK-LABEL: @scalar0( -; CHECK-NEXT: [[TMP1:%.*]] = and i4 [[X:%.*]], 1 -; CHECK-NEXT: [[TMP2:%.*]] = and i4 [[Y:%.*]], -2 -; CHECK-NEXT: [[R:%.*]] = or i4 [[TMP1]], [[TMP2]] -; CHECK-NEXT: ret i4 [[R]] -; - %n0 = xor i4 %x, %y - %n1 = and i4 %n0, 1 - %r = xor i4 %n1, %y - ret i4 %r -} - -define i4 @scalar1 (i4 %x, i4 %y) { -; CHECK-LABEL: @scalar1( -; CHECK-NEXT: [[TMP1:%.*]] = and i4 [[X:%.*]], -2 -; CHECK-NEXT: [[TMP2:%.*]] = and i4 [[Y:%.*]], 1 -; CHECK-NEXT: [[R:%.*]] = or i4 [[TMP1]], [[TMP2]] -; CHECK-NEXT: ret i4 [[R]] -; - %n0 = xor i4 %x, %y - %n1 = and i4 %n0, -2 - %r = xor i4 %n1, %y - ret i4 %r -} - -; ============================================================================ ; -; Various cases with %x and/or %y being a constant -; ============================================================================ ; - -define i4 @in_constant_varx_mone(i4 %x, i4 %mask) { -; CHECK-LABEL: @in_constant_varx_mone( -; CHECK-NEXT: [[R1:%.*]] = or i4 [[X:%.*]], -2 -; CHECK-NEXT: ret i4 [[R1]] -; - %n0 = xor i4 %x, -1 ; %x - %n1 = and i4 %n0, 1 - %r = xor i4 %n1, -1 - ret i4 %r -} - -define i4 @in_constant_varx_14(i4 %x, i4 %mask) { -; CHECK-LABEL: @in_constant_varx_14( -; CHECK-NEXT: [[R1:%.*]] = or i4 [[X:%.*]], -2 -; CHECK-NEXT: ret i4 [[R1]] -; - %n0 = xor i4 %x, 14 ; %x - %n1 = and i4 %n0, 1 - %r = xor i4 %n1, 14 - ret i4 %r -} - -define i4 @in_constant_mone_vary(i4 %y, i4 %mask) { -; CHECK-LABEL: @in_constant_mone_vary( -; CHECK-NEXT: [[N0:%.*]] = and i4 [[Y:%.*]], 1 -; CHECK-NEXT: [[N1:%.*]] = xor i4 [[N0]], 1 -; CHECK-NEXT: [[R:%.*]] = xor i4 [[N1]], [[Y]] -; CHECK-NEXT: ret i4 [[R]] -; - %n0 = xor i4 %y, -1 ; %x - %n1 = and i4 %n0, 1 - %r = xor i4 %n1, %y - ret i4 %r -} - -define i4 @in_constant_14_vary(i4 %y, i4 %mask) { -; CHECK-LABEL: @in_constant_14_vary( -; CHECK-NEXT: [[R:%.*]] = and i4 [[Y:%.*]], -2 -; CHECK-NEXT: ret i4 [[R]] -; - %n0 = xor i4 %y, 14 ; %x - %n1 = and i4 %n0, 1 - %r = xor i4 %n1, %y - ret i4 %r -} - -; ============================================================================ ; -; Commutativity -; ============================================================================ ; - -; Used to make sure that the IR complexity sorting does not interfere. -declare i4 @gen4() - -define i4 @c_1_0_0 (i4 %x, i4 %y) { -; CHECK-LABEL: @c_1_0_0( -; CHECK-NEXT: [[TMP1:%.*]] = and i4 [[X:%.*]], -2 -; CHECK-NEXT: [[TMP2:%.*]] = and i4 [[Y:%.*]], 1 -; CHECK-NEXT: [[R:%.*]] = or i4 [[TMP1]], [[TMP2]] -; CHECK-NEXT: ret i4 [[R]] -; - %n0 = xor i4 %y, %x ; swapped order - %n1 = and i4 %n0, -2 - %r = xor i4 %n1, %y - ret i4 %r -} - -define i4 @c_0_1_0 (i4 %x, i4 %y) { -; CHECK-LABEL: @c_0_1_0( -; CHECK-NEXT: [[TMP1:%.*]] = and i4 [[Y:%.*]], -2 -; CHECK-NEXT: [[TMP2:%.*]] = and i4 [[X:%.*]], 1 -; CHECK-NEXT: [[R:%.*]] = or i4 [[TMP1]], [[TMP2]] -; CHECK-NEXT: ret i4 [[R]] -; - %n0 = xor i4 %x, %y - %n1 = and i4 %n0, -2 - %r = xor i4 %n1, %x ; %x instead of %y - ret i4 %r -} - -define i4 @c_0_0_1 () { -; CHECK-LABEL: @c_0_0_1( -; CHECK-NEXT: [[X:%.*]] = call i4 @gen4() -; CHECK-NEXT: [[Y:%.*]] = call i4 @gen4() -; CHECK-NEXT: [[TMP1:%.*]] = and i4 [[X]], -2 -; CHECK-NEXT: [[TMP2:%.*]] = and i4 [[Y]], 1 -; CHECK-NEXT: [[R:%.*]] = or i4 [[TMP1]], [[TMP2]] -; CHECK-NEXT: ret i4 [[R]] -; - %x = call i4 @gen4() - %y = call i4 @gen4() - %n0 = xor i4 %x, %y - %n1 = and i4 %n0, -2 - %r = xor i4 %y, %n1 ; swapped order - ret i4 %r -} - -define i4 @c_1_1_0 (i4 %x, i4 %y) { -; CHECK-LABEL: @c_1_1_0( -; CHECK-NEXT: [[TMP1:%.*]] = and i4 [[Y:%.*]], -2 -; CHECK-NEXT: [[TMP2:%.*]] = and i4 [[X:%.*]], 1 -; CHECK-NEXT: [[R:%.*]] = or i4 [[TMP1]], [[TMP2]] -; CHECK-NEXT: ret i4 [[R]] -; - %n0 = xor i4 %y, %x ; swapped order - %n1 = and i4 %n0, -2 - %r = xor i4 %n1, %x ; %x instead of %y - ret i4 %r -} - -define i4 @c_1_0_1 (i4 %x) { -; CHECK-LABEL: @c_1_0_1( -; CHECK-NEXT: [[Y:%.*]] = call i4 @gen4() -; CHECK-NEXT: [[TMP1:%.*]] = and i4 [[X:%.*]], -2 -; CHECK-NEXT: [[TMP2:%.*]] = and i4 [[Y]], 1 -; CHECK-NEXT: [[R:%.*]] = or i4 [[TMP1]], [[TMP2]] -; CHECK-NEXT: ret i4 [[R]] -; - %y = call i4 @gen4() - %n0 = xor i4 %y, %x ; swapped order - %n1 = and i4 %n0, -2 - %r = xor i4 %y, %n1 ; swapped order - ret i4 %r -} - -define i4 @c_0_1_1 (i4 %y) { -; CHECK-LABEL: @c_0_1_1( -; CHECK-NEXT: [[X:%.*]] = call i4 @gen4() -; CHECK-NEXT: [[TMP1:%.*]] = and i4 [[Y:%.*]], -2 -; CHECK-NEXT: [[TMP2:%.*]] = and i4 [[X]], 1 -; CHECK-NEXT: [[R:%.*]] = or i4 [[TMP1]], [[TMP2]] -; CHECK-NEXT: ret i4 [[R]] -; - %x = call i4 @gen4() - %n0 = xor i4 %x, %y - %n1 = and i4 %n0, -2 - %r = xor i4 %x, %n1 ; swapped order, %x instead of %y - ret i4 %r -} - -define i4 @c_1_1_1 () { -; CHECK-LABEL: @c_1_1_1( -; CHECK-NEXT: [[X:%.*]] = call i4 @gen4() -; CHECK-NEXT: [[Y:%.*]] = call i4 @gen4() -; CHECK-NEXT: [[TMP1:%.*]] = and i4 [[Y]], -2 -; CHECK-NEXT: [[TMP2:%.*]] = and i4 [[X]], 1 -; CHECK-NEXT: [[R:%.*]] = or i4 [[TMP1]], [[TMP2]] -; CHECK-NEXT: ret i4 [[R]] -; - %x = call i4 @gen4() - %y = call i4 @gen4() - %n0 = xor i4 %y, %x ; swapped order - %n1 = and i4 %n0, -2 - %r = xor i4 %x, %n1 ; swapped order, %x instead of %y - ret i4 %r -} - -define i4 @commutativity_constant_14_vary(i4 %y, i4 %mask) { -; CHECK-LABEL: @commutativity_constant_14_vary( -; CHECK-NEXT: [[R:%.*]] = and i4 [[Y:%.*]], -2 -; CHECK-NEXT: ret i4 [[R]] -; - %n0 = xor i4 %y, 14 ; %x - %n1 = and i4 %n0, 1 - %r = xor i4 %y, %n1 ; swapped - ret i4 %r -} - -; ============================================================================ ; -; Negative tests. Should not be folded. -; ============================================================================ ; - -; One use only. - -declare void @use4(i4) - -define i4 @n_oneuse_D (i4 %x, i4 %y) { -; CHECK-LABEL: @n_oneuse_D( -; CHECK-NEXT: [[N0:%.*]] = xor i4 [[X:%.*]], [[Y:%.*]] -; CHECK-NEXT: [[N1:%.*]] = and i4 [[N0]], -2 -; CHECK-NEXT: [[R:%.*]] = xor i4 [[N1]], [[Y]] -; CHECK-NEXT: call void @use4(i4 [[N0]]) -; CHECK-NEXT: ret i4 [[R]] -; - %n0 = xor i4 %x, %y ; two uses of %n0, which is going to be replaced - %n1 = and i4 %n0, -2 - %r = xor i4 %n1, %y - call void @use4(i4 %n0) - ret i4 %r -} - -define i4 @n_oneuse_A (i4 %x, i4 %y) { -; CHECK-LABEL: @n_oneuse_A( -; CHECK-NEXT: [[N0:%.*]] = xor i4 [[X:%.*]], [[Y:%.*]] -; CHECK-NEXT: [[N1:%.*]] = and i4 [[N0]], -2 -; CHECK-NEXT: [[R:%.*]] = xor i4 [[N1]], [[Y]] -; CHECK-NEXT: call void @use4(i4 [[N1]]) -; CHECK-NEXT: ret i4 [[R]] -; - %n0 = xor i4 %x, %y - %n1 = and i4 %n0, -2 ; two uses of %n1, which is going to be replaced - %r = xor i4 %n1, %y - call void @use4(i4 %n1) - ret i4 %r -} - -define i4 @n_oneuse_AD (i4 %x, i4 %y) { -; CHECK-LABEL: @n_oneuse_AD( -; CHECK-NEXT: [[N0:%.*]] = xor i4 [[X:%.*]], [[Y:%.*]] -; CHECK-NEXT: [[N1:%.*]] = and i4 [[N0]], -2 -; CHECK-NEXT: [[R:%.*]] = xor i4 [[N1]], [[Y]] -; CHECK-NEXT: call void @use4(i4 [[N0]]) -; CHECK-NEXT: call void @use4(i4 [[N1]]) -; CHECK-NEXT: ret i4 [[R]] -; - %n0 = xor i4 %x, %y - %n1 = and i4 %n0, -2 ; two uses of %n1, which is going to be replaced - %r = xor i4 %n1, %y - call void @use4(i4 %n0) - call void @use4(i4 %n1) - ret i4 %r -} - -; Mask is not constant - -define i4 @n_var_mask (i4 %x, i4 %y, i4 %m) { -; CHECK-LABEL: @n_var_mask( -; CHECK-NEXT: [[N0:%.*]] = xor i4 [[X:%.*]], [[Y:%.*]] -; CHECK-NEXT: [[N1:%.*]] = and i4 [[N0]], [[M:%.*]] -; CHECK-NEXT: [[R:%.*]] = xor i4 [[N1]], [[Y]] -; CHECK-NEXT: ret i4 [[R]] -; - %n0 = xor i4 %x, %y - %n1 = and i4 %n0, %m - %r = xor i4 %n1, %y - ret i4 %r -} - -; Some third variable is used - -define i4 @n_third_var (i4 %x, i4 %y, i4 %z) { -; CHECK-LABEL: @n_third_var( -; CHECK-NEXT: [[N0:%.*]] = xor i4 [[X:%.*]], [[Y:%.*]] -; CHECK-NEXT: [[N1:%.*]] = and i4 [[N0]], -2 -; CHECK-NEXT: [[R:%.*]] = xor i4 [[N1]], [[Z:%.*]] -; CHECK-NEXT: ret i4 [[R]] -; - %n0 = xor i4 %x, %y - %n1 = and i4 %n0, -2 - %r = xor i4 %n1, %z ; not %x or %y - ret i4 %r -} |
