Throw out redundant i1 tests

Author: spaits

llvm/test/Transforms/InstCombine/vector-reductions.ll

@@ -414,36 +414,6 @@ define i1 @constant_multiplied_non_power_of_2_i1(i1 %0) {
   ret i1 %4
 }
 
-define i1 @constant_multiplied_non_power_of_2_i1x4(i1 %0) {
-; CHECK-LABEL: @constant_multiplied_non_power_of_2_i1x4(
-; CHECK-NEXT:    [[TMP2:%.*]] = insertelement <4 x i1> poison, i1 [[TMP0:%.*]], i64 0
-; CHECK-NEXT:    [[TMP3:%.*]] = shufflevector <4 x i1> [[TMP2]], <4 x i1> poison, <4 x i32> zeroinitializer
-; CHECK-NEXT:    [[TMP4:%.*]] = bitcast <4 x i1> [[TMP3]] to i4
-; CHECK-NEXT:    [[TMP5:%.*]] = call range(i4 0, 5) i4 @llvm.ctpop.i4(i4 [[TMP4]])
-; CHECK-NEXT:    [[TMP6:%.*]] = trunc i4 [[TMP5]] to i1
-; CHECK-NEXT:    ret i1 [[TMP6]]
-;
-  %2 = insertelement <4 x i1> poison, i1 %0, i32 0
-  %3 = shufflevector <4 x i1> %2, <4 x i1> poison, <4 x i32> zeroinitializer
-  %4 = tail call i1 @llvm.vector.reduce.add.v4i1(<4 x i1> %3)
-  ret i1 %4
-}
-
-define i1 @constant_multiplied_non_power_of_2_i1x2(i1 %0) {
-; CHECK-LABEL: @constant_multiplied_non_power_of_2_i1x2(
-; CHECK-NEXT:    [[TMP2:%.*]] = insertelement <2 x i1> poison, i1 [[TMP0:%.*]], i64 0
-; CHECK-NEXT:    [[TMP3:%.*]] = shufflevector <2 x i1> [[TMP2]], <2 x i1> poison, <2 x i32> zeroinitializer
-; CHECK-NEXT:    [[TMP4:%.*]] = bitcast <2 x i1> [[TMP3]] to i2
-; CHECK-NEXT:    [[TMP5:%.*]] = call range(i2 0, -1) i2 @llvm.ctpop.i2(i2 [[TMP4]])
-; CHECK-NEXT:    [[TMP6:%.*]] = trunc i2 [[TMP5]] to i1
-; CHECK-NEXT:    ret i1 [[TMP6]]
-;
-  %2 = insertelement <2 x i1> poison, i1 %0, i32 0
-  %3 = shufflevector <2 x i1> %2, <2 x i1> poison, <2 x i32> zeroinitializer
-  %4 = tail call i1 @llvm.vector.reduce.add.v2i1(<2 x i1> %3)
-  ret i1 %4
-}
-
 define i2 @constant_multiplied_non_power_of_2_i2x4(i2 %0) {
 ; CHECK-LABEL: @constant_multiplied_non_power_of_2_i2x4(
 ; CHECK-NEXT:    ret i2 0