[InstSimplify, InstCombine] move 'or' simplification tests; NFC

Surprisingly, I don't think these are redundant for InstSimplify. 
They were just misplaced as InstCombine tests.

llvm-svn: 302684

2 files changed, 181 insertions, 72 deletions

diff --git a/llvm/test/Transforms/InstSimplify/apint-or.ll b/llvm/test/Transforms/InstSimplify/apint-or.ll
deleted file mode 100644
index e3dc2c48fb4..00000000000
--- a/llvm/test/Transforms/InstSimplify/apint-or.ll
+++ /dev/null
@@ -1,72 +0,0 @@
-; NOTE: Assertions have been autogenerated by update_test_checks.py
-; RUN: opt < %s -instsimplify -S | FileCheck %s
-
-; Test the case where integer BitWidth <= 64 && BitWidth % 2 != 0.
-define i39 @test1(i39 %V, i39 %M) {
-; CHECK-LABEL: @test1(
-; CHECK:         [[N:%.*]] = and i39 %M, -274877906944
-; CHECK-NEXT:    [[A:%.*]] = add i39 %V, [[N]]
-; CHECK-NEXT:    ret i39 [[A]]
-;
-    ;; If we have: ((V + N) & C1) | (V & C2)
-    ;; .. and C2 = ~C1 and C2 is 0+1+ and (N & C2) == 0
-    ;; replace with V+N.
-    %C1 = xor i39 274877906943, -1 ;; C2 = 274877906943
-    %N = and i39 %M, 274877906944
-    %A = add i39 %V, %N
-    %B = and i39 %A, %C1
-    %D = and i39 %V, 274877906943
-    %R = or i39 %B, %D
-    ret i39 %R
-}
-
-define i7 @test2(i7 %X) {
-; CHECK-LABEL: @test2(
-; CHECK:         ret i7 %X
-;
-    %Y = or i7 %X, 0
-    ret i7 %Y
-}
-
-define i17 @test3(i17 %X) {
-; CHECK-LABEL: @test3(
-; CHECK:         ret i17 -1
-;
-    %Y = or i17 %X, -1
-    ret i17 %Y
-}
-
-; Test the case where Integer BitWidth > 64 && BitWidth <= 1024.
-define i399 @test4(i399 %V, i399 %M) {
-; CHECK-LABEL: @test4(
-; CHECK:         [[N:%.*]] = and i399 %M, 18446742974197923840
-; CHECK-NEXT:    [[A:%.*]] = add i399 %V, [[N]]
-; CHECK-NEXT:    ret i399 [[A]]
-;
-    ;; If we have: ((V + N) & C1) | (V & C2)
-    ;; .. and C2 = ~C1 and C2 is 0+1+ and (N & C2) == 0
-    ;; replace with V+N.
-    %C1 = xor i399 274877906943, -1 ;; C2 = 274877906943
-    %N = and i399 %M, 18446742974197923840
-    %A = add i399 %V, %N
-    %B = and i399 %A, %C1
-    %D = and i399 %V, 274877906943
-    %R = or i399 %B, %D
-    ret i399 %R
-}
-
-define i777 @test5(i777 %X) {
-; CHECK-LABEL: @test5(
-; CHECK:         ret i777 %X
-;
-    %Y = or i777 %X, 0
-    ret i777 %Y
-}
-
-define i117 @test6(i117 %X) {
-; CHECK-LABEL: @test6(
-; CHECK:         ret i117 -1
-;
-    %Y = or i117 %X, -1
-    ret i117 %Y
-}
diff --git a/llvm/test/Transforms/InstSimplify/or.ll b/llvm/test/Transforms/InstSimplify/or.ll
new file mode 100644
index 00000000000..2c5b6181bc6
--- /dev/null
+++ b/llvm/test/Transforms/InstSimplify/or.ll
@@ -0,0 +1,181 @@
+; RUN: opt < %s -instsimplify -S | FileCheck %s
+
+define i32 @test1(i32 %A) {
+; CHECK-LABEL: @test1(
+; CHECK-NEXT:    ret i32 %A
+;
+  %B = or i32 %A, 0
+  ret i32 %B
+}
+
+define i32 @test2(i32 %A) {
+; CHECK-LABEL: @test2(
+; CHECK-NEXT:    ret i32 -1
+;
+  %B = or i32 %A, -1
+  ret i32 %B
+}
+
+define i8 @test2a(i8 %A) {
+; CHECK-LABEL: @test2a(
+; CHECK-NEXT:    ret i8 -1
+;
+  %B = or i8 %A, -1
+  ret i8 %B
+}
+
+define i1 @test3(i1 %A) {
+; CHECK-LABEL: @test3(
+; CHECK-NEXT:    ret i1 %A
+;
+  %B = or i1 %A, false
+  ret i1 %B
+}
+
+define i1 @test4(i1 %A) {
+; CHECK-LABEL: @test4(
+; CHECK-NEXT:    ret i1 true
+;
+  %B = or i1 %A, true
+  ret i1 %B
+}
+
+define i1 @test5(i1 %A) {
+; CHECK-LABEL: @test5(
+; CHECK-NEXT:    ret i1 %A
+;
+  %B = or i1 %A, %A
+  ret i1 %B
+}
+
+define i32 @test6(i32 %A) {
+; CHECK-LABEL: @test6(
+; CHECK-NEXT:    ret i32 %A
+;
+  %B = or i32 %A, %A
+  ret i32 %B
+}
+
+; A | ~A == -1
+define i32 @test7(i32 %A) {
+; CHECK-LABEL: @test7(
+; CHECK-NEXT:    ret i32 -1
+;
+  %NotA = xor i32 %A, -1
+  %B = or i32 %A, %NotA
+  ret i32 %B
+}
+
+define i8 @test8(i8 %A) {
+; CHECK-LABEL: @test8(
+; CHECK-NEXT:    ret i8 -1
+;
+  %B = or i8 %A, -2
+  %C = or i8 %B, 1
+  ret i8 %C
+}
+
+; Test that (A|c1)|(B|c2) == (A|B)|(c1|c2)
+define i8 @test9(i8 %A, i8 %B) {
+; CHECK-LABEL: @test9(
+; CHECK-NEXT:    ret i8 -1
+;
+  %C = or i8 %A, 1
+  %D = or i8 %B, -2
+  %E = or i8 %C, %D
+  ret i8 %E
+}
+
+define i8 @test10(i8 %A) {
+; CHECK-LABEL: @test10(
+; CHECK-NEXT:    ret i8 -2
+;
+  %B = or i8 %A, 1
+  %C = and i8 %B, -2
+  ; (X & C1) | C2 --> (X | C2) & (C1|C2)
+  %D = or i8 %C, -2
+  ret i8 %D
+}
+
+define i8 @test11(i8 %A) {
+; CHECK-LABEL: @test11(
+; CHECK-NEXT:    ret i8 -1
+;
+  %B = or i8 %A, -2
+  %C = xor i8 %B, 13
+  ; (X ^ C1) | C2 --> (X | C2) ^ (C1&~C2)
+  %D = or i8 %C, 1
+  %E = xor i8 %D, 12
+  ret i8 %E
+}
+
+; Test the case where integer BitWidth <= 64 && BitWidth % 2 != 0.
+define i39 @test1_apint(i39 %V, i39 %M) {
+; CHECK-LABEL: @test1_apint(
+; CHECK:         [[N:%.*]] = and i39 %M, -274877906944
+; CHECK-NEXT:    [[A:%.*]] = add i39 %V, [[N]]
+; CHECK-NEXT:    ret i39 [[A]]
+;
+    ;; If we have: ((V + N) & C1) | (V & C2)
+    ;; .. and C2 = ~C1 and C2 is 0+1+ and (N & C2) == 0
+    ;; replace with V+N.
+    %C1 = xor i39 274877906943, -1 ;; C2 = 274877906943
+    %N = and i39 %M, 274877906944
+    %A = add i39 %V, %N
+    %B = and i39 %A, %C1
+    %D = and i39 %V, 274877906943
+    %R = or i39 %B, %D
+    ret i39 %R
+}
+
+define i7 @test2_apint(i7 %X) {
+; CHECK-LABEL: @test2_apint(
+; CHECK:         ret i7 %X
+;
+    %Y = or i7 %X, 0
+    ret i7 %Y
+}
+
+define i17 @test3_apint(i17 %X) {
+; CHECK-LABEL: @test3_apint(
+; CHECK:         ret i17 -1
+;
+    %Y = or i17 %X, -1
+    ret i17 %Y
+}
+
+; Test the case where Integer BitWidth > 64 && BitWidth <= 1024.
+define i399 @test4_apint(i399 %V, i399 %M) {
+; CHECK-LABEL: @test4_apint(
+; CHECK:         [[N:%.*]] = and i399 %M, 18446742974197923840
+; CHECK-NEXT:    [[A:%.*]] = add i399 %V, [[N]]
+; CHECK-NEXT:    ret i399 [[A]]
+;
+    ;; If we have: ((V + N) & C1) | (V & C2)
+    ;; .. and C2 = ~C1 and C2 is 0+1+ and (N & C2) == 0
+    ;; replace with V+N.
+    %C1 = xor i399 274877906943, -1 ;; C2 = 274877906943
+    %N = and i399 %M, 18446742974197923840
+    %A = add i399 %V, %N
+    %B = and i399 %A, %C1
+    %D = and i399 %V, 274877906943
+    %R = or i399 %B, %D
+    ret i399 %R
+}
+
+define i777 @test5_apint(i777 %X) {
+; CHECK-LABEL: @test5_apint(
+; CHECK:         ret i777 %X
+;
+    %Y = or i777 %X, 0
+    ret i777 %Y
+}
+
+define i117 @test6_apint(i117 %X) {
+; CHECK-LABEL: @test6_apint(
+; CHECK:         ret i117 -1
+;
+    %Y = or i117 %X, -1
+    ret i117 %Y
+}
+