[llvm] aba7275 - [InstCombine] Add (icmp ne A, 0) | (icmp ne B, 0) --> (icmp ne (A|B), 0) tests

[Simon Pilgrim via llvm-commits]

Author: Simon Pilgrim
Date: 2020-10-19T13:42:53+01:00
New Revision: aba7275bb31f5eb824dcabbd869f71f26c681e26

URL: https://github.com/llvm/llvm-project/commit/aba7275bb31f5eb824dcabbd869f71f26c681e26
DIFF: https://github.com/llvm/llvm-project/commit/aba7275bb31f5eb824dcabbd869f71f26c681e26.diff

LOG: [InstCombine] Add (icmp ne A, 0) | (icmp ne B, 0) --> (icmp ne (A|B), 0) tests

Added: 
    

Modified: 
    llvm/test/Transforms/InstCombine/icmp.ll

Removed: 
    


################################################################################
diff  --git a/llvm/test/Transforms/InstCombine/icmp.ll b/llvm/test/Transforms/InstCombine/icmp.ll
index 9e1a01b90f0e..6a3a9e97ce71 100644
--- a/llvm/test/Transforms/InstCombine/icmp.ll
+++ b/llvm/test/Transforms/InstCombine/icmp.ll
@@ -2188,6 +2188,44 @@ define <2 x i1> @or_icmp_eq_B_0_icmp_ult_A_B_undef(<2 x i64> %a, <2 x i64> %b) {
   ret <2 x i1> %3
 }
 
+define i1 @or_icmp_ne_A_0_icmp_ne_B_0(i64 %a, i64 %b) {
+; CHECK-LABEL: @or_icmp_ne_A_0_icmp_ne_B_0(
+; CHECK-NEXT:    [[TMP1:%.*]] = or i64 [[A:%.*]], [[B:%.*]]
+; CHECK-NEXT:    [[TMP2:%.*]] = icmp ne i64 [[TMP1]], 0
+; CHECK-NEXT:    ret i1 [[TMP2]]
+;
+  %1 = icmp ne i64 %a, 0
+  %2 = icmp ne i64 %b, 0
+  %3 = or i1 %1, %2
+  ret i1 %3
+}
+
+define <2 x i1> @or_icmp_ne_A_0_icmp_ne_B_0_uniform(<2 x i64> %a, <2 x i64> %b) {
+; CHECK-LABEL: @or_icmp_ne_A_0_icmp_ne_B_0_uniform(
+; CHECK-NEXT:    [[TMP1:%.*]] = icmp ne <2 x i64> [[A:%.*]], zeroinitializer
+; CHECK-NEXT:    [[TMP2:%.*]] = icmp ne <2 x i64> [[B:%.*]], zeroinitializer
+; CHECK-NEXT:    [[TMP3:%.*]] = or <2 x i1> [[TMP1]], [[TMP2]]
+; CHECK-NEXT:    ret <2 x i1> [[TMP3]]
+;
+  %1 = icmp ne <2 x i64> %a, zeroinitializer
+  %2 = icmp ne <2 x i64> %b, zeroinitializer
+  %3 = or <2 x i1> %1, %2
+  ret <2 x i1> %3
+}
+
+define <2 x i1> @or_icmp_ne_A_0_icmp_ne_B_0_undef(<2 x i64> %a, <2 x i64> %b) {
+; CHECK-LABEL: @or_icmp_ne_A_0_icmp_ne_B_0_undef(
+; CHECK-NEXT:    [[TMP1:%.*]] = icmp ne <2 x i64> [[A:%.*]], <i64 0, i64 undef>
+; CHECK-NEXT:    [[TMP2:%.*]] = icmp ne <2 x i64> [[B:%.*]], <i64 0, i64 undef>
+; CHECK-NEXT:    [[TMP3:%.*]] = or <2 x i1> [[TMP1]], [[TMP2]]
+; CHECK-NEXT:    ret <2 x i1> [[TMP3]]
+;
+  %1 = icmp ne <2 x i64> %a, <i64 0, i64 undef>
+  %2 = icmp ne <2 x i64> %b, <i64 0, i64 undef>
+  %3 = or <2 x i1> %1, %2
+  ret <2 x i1> %3
+}
+
 define i1 @icmp_add_ult_2(i32 %X) {
 ; CHECK-LABEL: @icmp_add_ult_2(
 ; CHECK-NEXT:    [[TMP1:%.*]] = and i32 [[X:%.*]], -2