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[Reassociate] add vector tests with undef elements; NFC

Also, regenerate checks for these files. We should do better
on the vector tests by using the PatternMatch API instead of
BinaryOperator::isNot/isNeg.

llvm-svn: 344964
This commit is contained in:
Sanjay Patel 2018-10-22 22:04:13 +00:00
parent e3205431fe
commit a6149dec85
3 changed files with 107 additions and 43 deletions

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@ -1,46 +1,65 @@
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -reassociate -die -S | FileCheck %s
; (A&B)&~A == 0
define i32 @test1(i32 %a, i32 %b) {
%tmp.2 = and i32 %b, %a
%tmp.4 = xor i32 %a, -1
; (A&B)&~A == 0
%tmp.5 = and i32 %tmp.2, %tmp.4
ret i32 %tmp.5
; CHECK-LABEL: @test1(
; CHECK: ret i32 0
; CHECK-NEXT: ret i32 0
;
%t2 = and i32 %b, %a
%t4 = xor i32 %a, -1
%t5 = and i32 %t2, %t4
ret i32 %t5
}
define <2 x i32> @not_op_vec_undef(<2 x i32> %a, <2 x i32> %b) {
; CHECK-LABEL: @not_op_vec_undef(
; CHECK-NEXT: [[T2:%.*]] = and <2 x i32> [[B:%.*]], [[A:%.*]]
; CHECK-NEXT: [[T4:%.*]] = xor <2 x i32> [[A]], <i32 -1, i32 undef>
; CHECK-NEXT: [[T5:%.*]] = and <2 x i32> [[T2]], [[T4]]
; CHECK-NEXT: ret <2 x i32> [[T5]]
;
%t2 = and <2 x i32> %b, %a
%t4 = xor <2 x i32> %a, <i32 -1, i32 undef>
%t5 = and <2 x i32> %t2, %t4
ret <2 x i32> %t5
}
; A&~A == 0
define i32 @test2(i32 %a, i32 %b) {
%tmp.1 = and i32 %a, 1234
%tmp.2 = and i32 %b, %tmp.1
%tmp.4 = xor i32 %a, -1
; A&~A == 0
%tmp.5 = and i32 %tmp.2, %tmp.4
ret i32 %tmp.5
; CHECK-LABEL: @test2(
; CHECK: ret i32 0
; CHECK-NEXT: ret i32 0
;
%t1 = and i32 %a, 1234
%t2 = and i32 %b, %t1
%t4 = xor i32 %a, -1
%t5 = and i32 %t2, %t4
ret i32 %t5
}
; (b+(a+1234))+-a -> b+1234
define i32 @test3(i32 %b, i32 %a) {
%tmp.1 = add i32 %a, 1234
%tmp.2 = add i32 %b, %tmp.1
%tmp.4 = sub i32 0, %a
; (b+(a+1234))+-a -> b+1234
%tmp.5 = add i32 %tmp.2, %tmp.4
ret i32 %tmp.5
; CHECK-LABEL: @test3(
; CHECK: %tmp.5 = add i32 %b, 1234
; CHECK: ret i32 %tmp.5
; CHECK-NEXT: [[T5:%.*]] = add i32 [[B:%.*]], 1234
; CHECK-NEXT: ret i32 [[T5]]
;
%t1 = add i32 %a, 1234
%t2 = add i32 %b, %t1
%t4 = sub i32 0, %a
%t5 = add i32 %t2, %t4
ret i32 %t5
}
; (b+(a+1234))+~a -> b+1233
define i32 @test4(i32 %b, i32 %a) {
%tmp.1 = add i32 %a, 1234
%tmp.2 = add i32 %b, %tmp.1
%tmp.4 = xor i32 %a, -1
; (b+(a+1234))+~a -> b+1233
%tmp.5 = add i32 %tmp.2, %tmp.4
ret i32 %tmp.5
; CHECK-LABEL: @test4(
; CHECK: %tmp.5 = add i32 %b, 1233
; CHECK: ret i32 %tmp.5
; CHECK-NEXT: [[T5:%.*]] = add i32 [[B:%.*]], 1233
; CHECK-NEXT: ret i32 [[T5]]
;
%t1 = add i32 %a, 1234
%t2 = add i32 %b, %t1
%t4 = xor i32 %a, -1
%t5 = add i32 %t2, %t4
ret i32 %t5
}

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@ -1,14 +1,15 @@
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -reassociate -instcombine -S | FileCheck %s
; Test that we can turn things like X*-(Y*Z) -> X*-1*Y*Z.
define i32 @test1(i32 %a, i32 %b, i32 %z) {
; CHECK-LABEL: test1
; CHECK-NEXT: %e = mul i32 %a, 12345
; CHECK-NEXT: %f = mul i32 %e, %b
; CHECK-NEXT: %g = mul i32 %f, %z
; CHECK-NEXT: ret i32 %g
; CHECK-LABEL: @test1(
; CHECK-NEXT: [[E:%.*]] = mul i32 [[A:%.*]], 12345
; CHECK-NEXT: [[F:%.*]] = mul i32 [[E]], [[B:%.*]]
; CHECK-NEXT: [[G:%.*]] = mul i32 [[F]], [[Z:%.*]]
; CHECK-NEXT: ret i32 [[G]]
;
%c = sub i32 0, %z
%d = mul i32 %a, %b
%e = mul i32 %c, %d
@ -18,14 +19,57 @@ define i32 @test1(i32 %a, i32 %b, i32 %z) {
}
define i32 @test2(i32 %a, i32 %b, i32 %z) {
; CHECK-LABEL: test2
; CHECK-NEXT: %e = mul i32 %a, 40
; CHECK-NEXT: %f = mul i32 %e, %z
; CHECK-NEXT: ret i32 %f
; CHECK-LABEL: @test2(
; CHECK-NEXT: [[E:%.*]] = mul i32 [[A:%.*]], 40
; CHECK-NEXT: [[F:%.*]] = mul i32 [[E]], [[Z:%.*]]
; CHECK-NEXT: ret i32 [[F]]
;
%d = mul i32 %z, 40
%c = sub i32 0, %d
%e = mul i32 %a, %c
%f = sub i32 0, %e
ret i32 %f
}
define <2 x i32> @negate_vec_undefs(<2 x i32> %a, <2 x i32> %b, <2 x i32> %z) {
; CHECK-LABEL: @negate_vec_undefs(
; CHECK-NEXT: [[TMP1:%.*]] = mul <2 x i32> [[Z:%.*]], <i32 -40, i32 -40>
; CHECK-NEXT: [[E:%.*]] = mul <2 x i32> [[TMP1]], [[A:%.*]]
; CHECK-NEXT: [[F:%.*]] = sub <2 x i32> <i32 0, i32 undef>, [[E]]
; CHECK-NEXT: ret <2 x i32> [[F]]
;
%d = mul <2 x i32> %z, <i32 40, i32 40>
%c = sub <2 x i32> <i32 0, i32 undef>, %d
%e = mul <2 x i32> %a, %c
%f = sub <2 x i32> <i32 0, i32 undef>, %e
ret <2 x i32> %f
}
define i32 @not_not(i32 %a, i32 %b, i32 %z) {
; CHECK-LABEL: @not_not(
; CHECK-NEXT: [[D:%.*]] = and i32 [[Z:%.*]], 40
; CHECK-NEXT: [[A_NOT:%.*]] = xor i32 [[A:%.*]], -1
; CHECK-NEXT: [[F:%.*]] = and i32 [[D]], [[A_NOT]]
; CHECK-NEXT: ret i32 [[F]]
;
%d = and i32 %z, 40
%c = xor i32 -1, %d
%e = or i32 %a, %c
%f = xor i32 -1, %e
ret i32 %f
}
define <2 x i32> @not_vec_undefs(<2 x i32> %a, <2 x i32> %b, <2 x i32> %z) {
; CHECK-LABEL: @not_vec_undefs(
; CHECK-NEXT: [[D:%.*]] = or <2 x i32> [[Z:%.*]], <i32 40, i32 40>
; CHECK-NEXT: [[A_NOT:%.*]] = xor <2 x i32> [[A:%.*]], <i32 -1, i32 -1>
; CHECK-NEXT: [[F:%.*]] = or <2 x i32> [[D]], [[A_NOT]]
; CHECK-NEXT: ret <2 x i32> [[F]]
;
%d = or <2 x i32> %z, <i32 40, i32 40>
%c = xor <2 x i32> <i32 undef, i32 -1>, %d
%e = and <2 x i32> %a, %c
%f = xor <2 x i32> <i32 undef, i32 -1>, %e
ret <2 x i32> %f
}

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@ -1,11 +1,12 @@
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -reassociate -instcombine -S | FileCheck %s
; Test that we can turn things like A*B + X - A*B -> X.
define i32 @test1(i32 %a, i32 %b, i32 %x) {
; CHECK-LABEL: test1
; CHECK: ret i32 %x
; CHECK-LABEL: @test1(
; CHECK-NEXT: ret i32 [[X:%.*]]
;
%c = mul i32 %a, %b
%d = add i32 %c, %x
%c1 = mul i32 %a, %b