[InstSimplify] add folds for and-of-icmps with same operands

All of these (and a few more) are already handled by InstCombine,
but we shouldn't have to wait until then to simplify these because
they're cheap to deal with here in InstSimplify.

This is the 'and' sibling of the earlier 'or' patch:
https://reviews.llvm.org/rL288833

llvm-svn: 288841

1 files changed, 58 insertions, 197 deletions

diff --git a/llvm/test/Transforms/InstSimplify/and-icmps-same-ops.ll b/llvm/test/Transforms/InstSimplify/and-icmps-same-ops.ll
index 6e7da27bf58..8a665c33997 100644
--- a/llvm/test/Transforms/InstSimplify/and-icmps-same-ops.ll
+++ b/llvm/test/Transforms/InstSimplify/and-icmps-same-ops.ll
@@ -7,9 +7,7 @@
 define i1 @eq_eq(i8 %a, i8 %b) {
 ; CHECK-LABEL: @eq_eq(
 ; CHECK-NEXT:    [[CMP1:%.*]] = icmp eq i8 %a, %b
-; CHECK-NEXT:    [[CMP2:%.*]] = icmp eq i8 %a, %b
-; CHECK-NEXT:    [[AND:%.*]] = and i1 [[CMP1]], [[CMP2]]
-; CHECK-NEXT:    ret i1 [[AND]]
+; CHECK-NEXT:    ret i1 [[CMP1]]
 ;
   %cmp1 = icmp eq i8 %a, %b
   %cmp2 = icmp eq i8 %a, %b
@@ -19,10 +17,7 @@ define i1 @eq_eq(i8 %a, i8 %b) {
 
 define i1 @eq_ne(i8 %a, i8 %b) {
 ; CHECK-LABEL: @eq_ne(
-; CHECK-NEXT:    [[CMP1:%.*]] = icmp eq i8 %a, %b
-; CHECK-NEXT:    [[CMP2:%.*]] = icmp ne i8 %a, %b
-; CHECK-NEXT:    [[AND:%.*]] = and i1 [[CMP1]], [[CMP2]]
-; CHECK-NEXT:    ret i1 [[AND]]
+; CHECK-NEXT:    ret i1 false
 ;
   %cmp1 = icmp eq i8 %a, %b
   %cmp2 = icmp ne i8 %a, %b
@@ -33,9 +28,7 @@ define i1 @eq_ne(i8 %a, i8 %b) {
 define i1 @eq_sge(i8 %a, i8 %b) {
 ; CHECK-LABEL: @eq_sge(
 ; CHECK-NEXT:    [[CMP1:%.*]] = icmp eq i8 %a, %b
-; CHECK-NEXT:    [[CMP2:%.*]] = icmp sge i8 %a, %b
-; CHECK-NEXT:    [[AND:%.*]] = and i1 [[CMP1]], [[CMP2]]
-; CHECK-NEXT:    ret i1 [[AND]]
+; CHECK-NEXT:    ret i1 [[CMP1]]
 ;
   %cmp1 = icmp eq i8 %a, %b
   %cmp2 = icmp sge i8 %a, %b
@@ -45,10 +38,7 @@ define i1 @eq_sge(i8 %a, i8 %b) {
 
 define i1 @eq_sgt(i8 %a, i8 %b) {
 ; CHECK-LABEL: @eq_sgt(
-; CHECK-NEXT:    [[CMP1:%.*]] = icmp eq i8 %a, %b
-; CHECK-NEXT:    [[CMP2:%.*]] = icmp sgt i8 %a, %b
-; CHECK-NEXT:    [[AND:%.*]] = and i1 [[CMP1]], [[CMP2]]
-; CHECK-NEXT:    ret i1 [[AND]]
+; CHECK-NEXT:    ret i1 false
 ;
   %cmp1 = icmp eq i8 %a, %b
   %cmp2 = icmp sgt i8 %a, %b
@@ -59,9 +49,7 @@ define i1 @eq_sgt(i8 %a, i8 %b) {
 define i1 @eq_sle(i8 %a, i8 %b) {
 ; CHECK-LABEL: @eq_sle(
 ; CHECK-NEXT:    [[CMP1:%.*]] = icmp eq i8 %a, %b
-; CHECK-NEXT:    [[CMP2:%.*]] = icmp sle i8 %a, %b
-; CHECK-NEXT:    [[AND:%.*]] = and i1 [[CMP1]], [[CMP2]]
-; CHECK-NEXT:    ret i1 [[AND]]
+; CHECK-NEXT:    ret i1 [[CMP1]]
 ;
   %cmp1 = icmp eq i8 %a, %b
   %cmp2 = icmp sle i8 %a, %b
@@ -71,10 +59,7 @@ define i1 @eq_sle(i8 %a, i8 %b) {
 
 define i1 @eq_slt(i8 %a, i8 %b) {
 ; CHECK-LABEL: @eq_slt(
-; CHECK-NEXT:    [[CMP1:%.*]] = icmp eq i8 %a, %b
-; CHECK-NEXT:    [[CMP2:%.*]] = icmp slt i8 %a, %b
-; CHECK-NEXT:    [[AND:%.*]] = and i1 [[CMP1]], [[CMP2]]
-; CHECK-NEXT:    ret i1 [[AND]]
+; CHECK-NEXT:    ret i1 false
 ;
   %cmp1 = icmp eq i8 %a, %b
   %cmp2 = icmp slt i8 %a, %b
@@ -85,9 +70,7 @@ define i1 @eq_slt(i8 %a, i8 %b) {
 define i1 @eq_uge(i8 %a, i8 %b) {
 ; CHECK-LABEL: @eq_uge(
 ; CHECK-NEXT:    [[CMP1:%.*]] = icmp eq i8 %a, %b
-; CHECK-NEXT:    [[CMP2:%.*]] = icmp uge i8 %a, %b
-; CHECK-NEXT:    [[AND:%.*]] = and i1 [[CMP1]], [[CMP2]]
-; CHECK-NEXT:    ret i1 [[AND]]
+; CHECK-NEXT:    ret i1 [[CMP1]]
 ;
   %cmp1 = icmp eq i8 %a, %b
   %cmp2 = icmp uge i8 %a, %b
@@ -97,10 +80,7 @@ define i1 @eq_uge(i8 %a, i8 %b) {
 
 define i1 @eq_ugt(i8 %a, i8 %b) {
 ; CHECK-LABEL: @eq_ugt(
-; CHECK-NEXT:    [[CMP1:%.*]] = icmp eq i8 %a, %b
-; CHECK-NEXT:    [[CMP2:%.*]] = icmp ugt i8 %a, %b
-; CHECK-NEXT:    [[AND:%.*]] = and i1 [[CMP1]], [[CMP2]]
-; CHECK-NEXT:    ret i1 [[AND]]
+; CHECK-NEXT:    ret i1 false
 ;
   %cmp1 = icmp eq i8 %a, %b
   %cmp2 = icmp ugt i8 %a, %b
@@ -111,9 +91,7 @@ define i1 @eq_ugt(i8 %a, i8 %b) {
 define i1 @eq_ule(i8 %a, i8 %b) {
 ; CHECK-LABEL: @eq_ule(
 ; CHECK-NEXT:    [[CMP1:%.*]] = icmp eq i8 %a, %b
-; CHECK-NEXT:    [[CMP2:%.*]] = icmp ule i8 %a, %b
-; CHECK-NEXT:    [[AND:%.*]] = and i1 [[CMP1]], [[CMP2]]
-; CHECK-NEXT:    ret i1 [[AND]]
+; CHECK-NEXT:    ret i1 [[CMP1]]
 ;
   %cmp1 = icmp eq i8 %a, %b
   %cmp2 = icmp ule i8 %a, %b
@@ -123,10 +101,7 @@ define i1 @eq_ule(i8 %a, i8 %b) {
 
 define i1 @eq_ult(i8 %a, i8 %b) {
 ; CHECK-LABEL: @eq_ult(
-; CHECK-NEXT:    [[CMP1:%.*]] = icmp eq i8 %a, %b
-; CHECK-NEXT:    [[CMP2:%.*]] = icmp ult i8 %a, %b
-; CHECK-NEXT:    [[AND:%.*]] = and i1 [[CMP1]], [[CMP2]]
-; CHECK-NEXT:    ret i1 [[AND]]
+; CHECK-NEXT:    ret i1 false
 ;
   %cmp1 = icmp eq i8 %a, %b
   %cmp2 = icmp ult i8 %a, %b
@@ -138,10 +113,7 @@ define i1 @eq_ult(i8 %a, i8 %b) {
 
 define i1 @ne_eq(i8 %a, i8 %b) {
 ; CHECK-LABEL: @ne_eq(
-; CHECK-NEXT:    [[CMP1:%.*]] = icmp ne i8 %a, %b
-; CHECK-NEXT:    [[CMP2:%.*]] = icmp eq i8 %a, %b
-; CHECK-NEXT:    [[AND:%.*]] = and i1 [[CMP1]], [[CMP2]]
-; CHECK-NEXT:    ret i1 [[AND]]
+; CHECK-NEXT:    ret i1 false
 ;
   %cmp1 = icmp ne i8 %a, %b
   %cmp2 = icmp eq i8 %a, %b
@@ -152,9 +124,7 @@ define i1 @ne_eq(i8 %a, i8 %b) {
 define i1 @ne_ne(i8 %a, i8 %b) {
 ; CHECK-LABEL: @ne_ne(
 ; CHECK-NEXT:    [[CMP1:%.*]] = icmp ne i8 %a, %b
-; CHECK-NEXT:    [[CMP2:%.*]] = icmp ne i8 %a, %b
-; CHECK-NEXT:    [[AND:%.*]] = and i1 [[CMP1]], [[CMP2]]
-; CHECK-NEXT:    ret i1 [[AND]]
+; CHECK-NEXT:    ret i1 [[CMP1]]
 ;
   %cmp1 = icmp ne i8 %a, %b
   %cmp2 = icmp ne i8 %a, %b
@@ -177,10 +147,8 @@ define i1 @ne_sge(i8 %a, i8 %b) {
 
 define i1 @ne_sgt(i8 %a, i8 %b) {
 ; CHECK-LABEL: @ne_sgt(
-; CHECK-NEXT:    [[CMP1:%.*]] = icmp ne i8 %a, %b
 ; CHECK-NEXT:    [[CMP2:%.*]] = icmp sgt i8 %a, %b
-; CHECK-NEXT:    [[AND:%.*]] = and i1 [[CMP1]], [[CMP2]]
-; CHECK-NEXT:    ret i1 [[AND]]
+; CHECK-NEXT:    ret i1 [[CMP2]]
 ;
   %cmp1 = icmp ne i8 %a, %b
   %cmp2 = icmp sgt i8 %a, %b
@@ -203,10 +171,8 @@ define i1 @ne_sle(i8 %a, i8 %b) {
 
 define i1 @ne_slt(i8 %a, i8 %b) {
 ; CHECK-LABEL: @ne_slt(
-; CHECK-NEXT:    [[CMP1:%.*]] = icmp ne i8 %a, %b
 ; CHECK-NEXT:    [[CMP2:%.*]] = icmp slt i8 %a, %b
-; CHECK-NEXT:    [[AND:%.*]] = and i1 [[CMP1]], [[CMP2]]
-; CHECK-NEXT:    ret i1 [[AND]]
+; CHECK-NEXT:    ret i1 [[CMP2]]
 ;
   %cmp1 = icmp ne i8 %a, %b
   %cmp2 = icmp slt i8 %a, %b
@@ -229,10 +195,8 @@ define i1 @ne_uge(i8 %a, i8 %b) {
 
 define i1 @ne_ugt(i8 %a, i8 %b) {
 ; CHECK-LABEL: @ne_ugt(
-; CHECK-NEXT:    [[CMP1:%.*]] = icmp ne i8 %a, %b
 ; CHECK-NEXT:    [[CMP2:%.*]] = icmp ugt i8 %a, %b
-; CHECK-NEXT:    [[AND:%.*]] = and i1 [[CMP1]], [[CMP2]]
-; CHECK-NEXT:    ret i1 [[AND]]
+; CHECK-NEXT:    ret i1 [[CMP2]]
 ;
   %cmp1 = icmp ne i8 %a, %b
   %cmp2 = icmp ugt i8 %a, %b
@@ -255,10 +219,8 @@ define i1 @ne_ule(i8 %a, i8 %b) {
 
 define i1 @ne_ult(i8 %a, i8 %b) {
 ; CHECK-LABEL: @ne_ult(
-; CHECK-NEXT:    [[CMP1:%.*]] = icmp ne i8 %a, %b
 ; CHECK-NEXT:    [[CMP2:%.*]] = icmp ult i8 %a, %b
-; CHECK-NEXT:    [[AND:%.*]] = and i1 [[CMP1]], [[CMP2]]
-; CHECK-NEXT:    ret i1 [[AND]]
+; CHECK-NEXT:    ret i1 [[CMP2]]
 ;
   %cmp1 = icmp ne i8 %a, %b
   %cmp2 = icmp ult i8 %a, %b
@@ -270,10 +232,8 @@ define i1 @ne_ult(i8 %a, i8 %b) {
 
 define i1 @sge_eq(i8 %a, i8 %b) {
 ; CHECK-LABEL: @sge_eq(
-; CHECK-NEXT:    [[CMP1:%.*]] = icmp sge i8 %a, %b
 ; CHECK-NEXT:    [[CMP2:%.*]] = icmp eq i8 %a, %b
-; CHECK-NEXT:    [[AND:%.*]] = and i1 [[CMP1]], [[CMP2]]
-; CHECK-NEXT:    ret i1 [[AND]]
+; CHECK-NEXT:    ret i1 [[CMP2]]
 ;
   %cmp1 = icmp sge i8 %a, %b
   %cmp2 = icmp eq i8 %a, %b
@@ -297,9 +257,7 @@ define i1 @sge_ne(i8 %a, i8 %b) {
 define i1 @sge_sge(i8 %a, i8 %b) {
 ; CHECK-LABEL: @sge_sge(
 ; CHECK-NEXT:    [[CMP1:%.*]] = icmp sge i8 %a, %b
-; CHECK-NEXT:    [[CMP2:%.*]] = icmp sge i8 %a, %b
-; CHECK-NEXT:    [[AND:%.*]] = and i1 [[CMP1]], [[CMP2]]
-; CHECK-NEXT:    ret i1 [[AND]]
+; CHECK-NEXT:    ret i1 [[CMP1]]
 ;
   %cmp1 = icmp sge i8 %a, %b
   %cmp2 = icmp sge i8 %a, %b
@@ -309,10 +267,8 @@ define i1 @sge_sge(i8 %a, i8 %b) {
 
 define i1 @sge_sgt(i8 %a, i8 %b) {
 ; CHECK-LABEL: @sge_sgt(
-; CHECK-NEXT:    [[CMP1:%.*]] = icmp sge i8 %a, %b
 ; CHECK-NEXT:    [[CMP2:%.*]] = icmp sgt i8 %a, %b
-; CHECK-NEXT:    [[AND:%.*]] = and i1 [[CMP1]], [[CMP2]]
-; CHECK-NEXT:    ret i1 [[AND]]
+; CHECK-NEXT:    ret i1 [[CMP2]]
 ;
   %cmp1 = icmp sge i8 %a, %b
   %cmp2 = icmp sgt i8 %a, %b
@@ -335,10 +291,7 @@ define i1 @sge_sle(i8 %a, i8 %b) {
 
 define i1 @sge_slt(i8 %a, i8 %b) {
 ; CHECK-LABEL: @sge_slt(
-; CHECK-NEXT:    [[CMP1:%.*]] = icmp sge i8 %a, %b
-; CHECK-NEXT:    [[CMP2:%.*]] = icmp slt i8 %a, %b
-; CHECK-NEXT:    [[AND:%.*]] = and i1 [[CMP1]], [[CMP2]]
-; CHECK-NEXT:    ret i1 [[AND]]
+; CHECK-NEXT:    ret i1 false
 ;
   %cmp1 = icmp sge i8 %a, %b
   %cmp2 = icmp slt i8 %a, %b
@@ -402,10 +355,7 @@ define i1 @sge_ult(i8 %a, i8 %b) {
 
 define i1 @sgt_eq(i8 %a, i8 %b) {
 ; CHECK-LABEL: @sgt_eq(
-; CHECK-NEXT:    [[CMP1:%.*]] = icmp sgt i8 %a, %b
-; CHECK-NEXT:    [[CMP2:%.*]] = icmp eq i8 %a, %b
-; CHECK-NEXT:    [[AND:%.*]] = and i1 [[CMP1]], [[CMP2]]
-; CHECK-NEXT:    ret i1 [[AND]]
+; CHECK-NEXT:    ret i1 false
 ;
   %cmp1 = icmp sgt i8 %a, %b
   %cmp2 = icmp eq i8 %a, %b
@@ -416,9 +366,7 @@ define i1 @sgt_eq(i8 %a, i8 %b) {
 define i1 @sgt_ne(i8 %a, i8 %b) {
 ; CHECK-LABEL: @sgt_ne(
 ; CHECK-NEXT:    [[CMP1:%.*]] = icmp sgt i8 %a, %b
-; CHECK-NEXT:    [[CMP2:%.*]] = icmp ne i8 %a, %b
-; CHECK-NEXT:    [[AND:%.*]] = and i1 [[CMP1]], [[CMP2]]
-; CHECK-NEXT:    ret i1 [[AND]]
+; CHECK-NEXT:    ret i1 [[CMP1]]
 ;
   %cmp1 = icmp sgt i8 %a, %b
   %cmp2 = icmp ne i8 %a, %b
@@ -429,9 +377,7 @@ define i1 @sgt_ne(i8 %a, i8 %b) {
 define i1 @sgt_sge(i8 %a, i8 %b) {
 ; CHECK-LABEL: @sgt_sge(
 ; CHECK-NEXT:    [[CMP1:%.*]] = icmp sgt i8 %a, %b
-; CHECK-NEXT:    [[CMP2:%.*]] = icmp sge i8 %a, %b
-; CHECK-NEXT:    [[AND:%.*]] = and i1 [[CMP1]], [[CMP2]]
-; CHECK-NEXT:    ret i1 [[AND]]
+; CHECK-NEXT:    ret i1 [[CMP1]]
 ;
   %cmp1 = icmp sgt i8 %a, %b
   %cmp2 = icmp sge i8 %a, %b
@@ -442,9 +388,7 @@ define i1 @sgt_sge(i8 %a, i8 %b) {
 define i1 @sgt_sgt(i8 %a, i8 %b) {
 ; CHECK-LABEL: @sgt_sgt(
 ; CHECK-NEXT:    [[CMP1:%.*]] = icmp sgt i8 %a, %b
-; CHECK-NEXT:    [[CMP2:%.*]] = icmp sgt i8 %a, %b
-; CHECK-NEXT:    [[AND:%.*]] = and i1 [[CMP1]], [[CMP2]]
-; CHECK-NEXT:    ret i1 [[AND]]
+; CHECK-NEXT:    ret i1 [[CMP1]]
 ;
   %cmp1 = icmp sgt i8 %a, %b
   %cmp2 = icmp sgt i8 %a, %b
@@ -454,10 +398,7 @@ define i1 @sgt_sgt(i8 %a, i8 %b) {
 
 define i1 @sgt_sle(i8 %a, i8 %b) {
 ; CHECK-LABEL: @sgt_sle(
-; CHECK-NEXT:    [[CMP1:%.*]] = icmp sgt i8 %a, %b
-; CHECK-NEXT:    [[CMP2:%.*]] = icmp sle i8 %a, %b
-; CHECK-NEXT:    [[AND:%.*]] = and i1 [[CMP1]], [[CMP2]]
-; CHECK-NEXT:    ret i1 [[AND]]
+; CHECK-NEXT:    ret i1 false
 ;
   %cmp1 = icmp sgt i8 %a, %b
   %cmp2 = icmp sle i8 %a, %b
@@ -467,10 +408,7 @@ define i1 @sgt_sle(i8 %a, i8 %b) {
 
 define i1 @sgt_slt(i8 %a, i8 %b) {
 ; CHECK-LABEL: @sgt_slt(
-; CHECK-NEXT:    [[CMP1:%.*]] = icmp sgt i8 %a, %b
-; CHECK-NEXT:    [[CMP2:%.*]] = icmp slt i8 %a, %b
-; CHECK-NEXT:    [[AND:%.*]] = and i1 [[CMP1]], [[CMP2]]
-; CHECK-NEXT:    ret i1 [[AND]]
+; CHECK-NEXT:    ret i1 false
 ;
   %cmp1 = icmp sgt i8 %a, %b
   %cmp2 = icmp slt i8 %a, %b
@@ -534,10 +472,8 @@ define i1 @sgt_ult(i8 %a, i8 %b) {
 
 define i1 @sle_eq(i8 %a, i8 %b) {
 ; CHECK-LABEL: @sle_eq(
-; CHECK-NEXT:    [[CMP1:%.*]] = icmp sle i8 %a, %b
 ; CHECK-NEXT:    [[CMP2:%.*]] = icmp eq i8 %a, %b
-; CHECK-NEXT:    [[AND:%.*]] = and i1 [[CMP1]], [[CMP2]]
-; CHECK-NEXT:    ret i1 [[AND]]
+; CHECK-NEXT:    ret i1 [[CMP2]]
 ;
   %cmp1 = icmp sle i8 %a, %b
   %cmp2 = icmp eq i8 %a, %b
@@ -573,10 +509,7 @@ define i1 @sle_sge(i8 %a, i8 %b) {
 
 define i1 @sle_sgt(i8 %a, i8 %b) {
 ; CHECK-LABEL: @sle_sgt(
-; CHECK-NEXT:    [[CMP1:%.*]] = icmp sle i8 %a, %b
-; CHECK-NEXT:    [[CMP2:%.*]] = icmp sgt i8 %a, %b
-; CHECK-NEXT:    [[AND:%.*]] = and i1 [[CMP1]], [[CMP2]]
-; CHECK-NEXT:    ret i1 [[AND]]
+; CHECK-NEXT:    ret i1 false
 ;
   %cmp1 = icmp sle i8 %a, %b
   %cmp2 = icmp sgt i8 %a, %b
@@ -587,9 +520,7 @@ define i1 @sle_sgt(i8 %a, i8 %b) {
 define i1 @sle_sle(i8 %a, i8 %b) {
 ; CHECK-LABEL: @sle_sle(
 ; CHECK-NEXT:    [[CMP1:%.*]] = icmp sle i8 %a, %b
-; CHECK-NEXT:    [[CMP2:%.*]] = icmp sle i8 %a, %b
-; CHECK-NEXT:    [[AND:%.*]] = and i1 [[CMP1]], [[CMP2]]
-; CHECK-NEXT:    ret i1 [[AND]]
+; CHECK-NEXT:    ret i1 [[CMP1]]
 ;
   %cmp1 = icmp sle i8 %a, %b
   %cmp2 = icmp sle i8 %a, %b
@@ -599,10 +530,8 @@ define i1 @sle_sle(i8 %a, i8 %b) {
 
 define i1 @sle_slt(i8 %a, i8 %b) {
 ; CHECK-LABEL: @sle_slt(
-; CHECK-NEXT:    [[CMP1:%.*]] = icmp sle i8 %a, %b
 ; CHECK-NEXT:    [[CMP2:%.*]] = icmp slt i8 %a, %b
-; CHECK-NEXT:    [[AND:%.*]] = and i1 [[CMP1]], [[CMP2]]
-; CHECK-NEXT:    ret i1 [[AND]]
+; CHECK-NEXT:    ret i1 [[CMP2]]
 ;
   %cmp1 = icmp sle i8 %a, %b
   %cmp2 = icmp slt i8 %a, %b
@@ -666,10 +595,7 @@ define i1 @sle_ult(i8 %a, i8 %b) {
 
 define i1 @slt_eq(i8 %a, i8 %b) {
 ; CHECK-LABEL: @slt_eq(
-; CHECK-NEXT:    [[CMP1:%.*]] = icmp slt i8 %a, %b
-; CHECK-NEXT:    [[CMP2:%.*]] = icmp eq i8 %a, %b
-; CHECK-NEXT:    [[AND:%.*]] = and i1 [[CMP1]], [[CMP2]]
-; CHECK-NEXT:    ret i1 [[AND]]
+; CHECK-NEXT:    ret i1 false
 ;
   %cmp1 = icmp slt i8 %a, %b
   %cmp2 = icmp eq i8 %a, %b
@@ -680,9 +606,7 @@ define i1 @slt_eq(i8 %a, i8 %b) {
 define i1 @slt_ne(i8 %a, i8 %b) {
 ; CHECK-LABEL: @slt_ne(
 ; CHECK-NEXT:    [[CMP1:%.*]] = icmp slt i8 %a, %b
-; CHECK-NEXT:    [[CMP2:%.*]] = icmp ne i8 %a, %b
-; CHECK-NEXT:    [[AND:%.*]] = and i1 [[CMP1]], [[CMP2]]
-; CHECK-NEXT:    ret i1 [[AND]]
+; CHECK-NEXT:    ret i1 [[CMP1]]
 ;
   %cmp1 = icmp slt i8 %a, %b
   %cmp2 = icmp ne i8 %a, %b
@@ -692,10 +616,7 @@ define i1 @slt_ne(i8 %a, i8 %b) {
 
 define i1 @slt_sge(i8 %a, i8 %b) {
 ; CHECK-LABEL: @slt_sge(
-; CHECK-NEXT:    [[CMP1:%.*]] = icmp slt i8 %a, %b
-; CHECK-NEXT:    [[CMP2:%.*]] = icmp sge i8 %a, %b
-; CHECK-NEXT:    [[AND:%.*]] = and i1 [[CMP1]], [[CMP2]]
-; CHECK-NEXT:    ret i1 [[AND]]
+; CHECK-NEXT:    ret i1 false
 ;
   %cmp1 = icmp slt i8 %a, %b
   %cmp2 = icmp sge i8 %a, %b
@@ -705,10 +626,7 @@ define i1 @slt_sge(i8 %a, i8 %b) {
 
 define i1 @slt_sgt(i8 %a, i8 %b) {
 ; CHECK-LABEL: @slt_sgt(
-; CHECK-NEXT:    [[CMP1:%.*]] = icmp slt i8 %a, %b
-; CHECK-NEXT:    [[CMP2:%.*]] = icmp sgt i8 %a, %b
-; CHECK-NEXT:    [[AND:%.*]] = and i1 [[CMP1]], [[CMP2]]
-; CHECK-NEXT:    ret i1 [[AND]]
+; CHECK-NEXT:    ret i1 false
 ;
   %cmp1 = icmp slt i8 %a, %b
   %cmp2 = icmp sgt i8 %a, %b
@@ -719,9 +637,7 @@ define i1 @slt_sgt(i8 %a, i8 %b) {
 define i1 @slt_sle(i8 %a, i8 %b) {
 ; CHECK-LABEL: @slt_sle(
 ; CHECK-NEXT:    [[CMP1:%.*]] = icmp slt i8 %a, %b
-; CHECK-NEXT:    [[CMP2:%.*]] = icmp sle i8 %a, %b
-; CHECK-NEXT:    [[AND:%.*]] = and i1 [[CMP1]], [[CMP2]]
-; CHECK-NEXT:    ret i1 [[AND]]
+; CHECK-NEXT:    ret i1 [[CMP1]]
 ;
   %cmp1 = icmp slt i8 %a, %b
   %cmp2 = icmp sle i8 %a, %b
@@ -732,9 +648,7 @@ define i1 @slt_sle(i8 %a, i8 %b) {
 define i1 @slt_slt(i8 %a, i8 %b) {
 ; CHECK-LABEL: @slt_slt(
 ; CHECK-NEXT:    [[CMP1:%.*]] = icmp slt i8 %a, %b
-; CHECK-NEXT:    [[CMP2:%.*]] = icmp slt i8 %a, %b
-; CHECK-NEXT:    [[AND:%.*]] = and i1 [[CMP1]], [[CMP2]]
-; CHECK-NEXT:    ret i1 [[AND]]
+; CHECK-NEXT:    ret i1 [[CMP1]]
 ;
   %cmp1 = icmp slt i8 %a, %b
   %cmp2 = icmp slt i8 %a, %b
@@ -798,10 +712,8 @@ define i1 @slt_ult(i8 %a, i8 %b) {
 
 define i1 @uge_eq(i8 %a, i8 %b) {
 ; CHECK-LABEL: @uge_eq(
-; CHECK-NEXT:    [[CMP1:%.*]] = icmp uge i8 %a, %b
 ; CHECK-NEXT:    [[CMP2:%.*]] = icmp eq i8 %a, %b
-; CHECK-NEXT:    [[AND:%.*]] = and i1 [[CMP1]], [[CMP2]]
-; CHECK-NEXT:    ret i1 [[AND]]
+; CHECK-NEXT:    ret i1 [[CMP2]]
 ;
   %cmp1 = icmp uge i8 %a, %b
   %cmp2 = icmp eq i8 %a, %b
@@ -877,9 +789,7 @@ define i1 @uge_slt(i8 %a, i8 %b) {
 define i1 @uge_uge(i8 %a, i8 %b) {
 ; CHECK-LABEL: @uge_uge(
 ; CHECK-NEXT:    [[CMP1:%.*]] = icmp uge i8 %a, %b
-; CHECK-NEXT:    [[CMP2:%.*]] = icmp uge i8 %a, %b
-; CHECK-NEXT:    [[AND:%.*]] = and i1 [[CMP1]], [[CMP2]]
-; CHECK-NEXT:    ret i1 [[AND]]
+; CHECK-NEXT:    ret i1 [[CMP1]]
 ;
   %cmp1 = icmp uge i8 %a, %b
   %cmp2 = icmp uge i8 %a, %b
@@ -889,10 +799,8 @@ define i1 @uge_uge(i8 %a, i8 %b) {
 
 define i1 @uge_ugt(i8 %a, i8 %b) {
 ; CHECK-LABEL: @uge_ugt(
-; CHECK-NEXT:    [[CMP1:%.*]] = icmp uge i8 %a, %b
 ; CHECK-NEXT:    [[CMP2:%.*]] = icmp ugt i8 %a, %b
-; CHECK-NEXT:    [[AND:%.*]] = and i1 [[CMP1]], [[CMP2]]
-; CHECK-NEXT:    ret i1 [[AND]]
+; CHECK-NEXT:    ret i1 [[CMP2]]
 ;
   %cmp1 = icmp uge i8 %a, %b
   %cmp2 = icmp ugt i8 %a, %b
@@ -915,10 +823,7 @@ define i1 @uge_ule(i8 %a, i8 %b) {
 
 define i1 @uge_ult(i8 %a, i8 %b) {
 ; CHECK-LABEL: @uge_ult(
-; CHECK-NEXT:    [[CMP1:%.*]] = icmp uge i8 %a, %b
-; CHECK-NEXT:    [[CMP2:%.*]] = icmp ult i8 %a, %b
-; CHECK-NEXT:    [[AND:%.*]] = and i1 [[CMP1]], [[CMP2]]
-; CHECK-NEXT:    ret i1 [[AND]]
+; CHECK-NEXT:    ret i1 false
 ;
   %cmp1 = icmp uge i8 %a, %b
   %cmp2 = icmp ult i8 %a, %b
@@ -930,10 +835,7 @@ define i1 @uge_ult(i8 %a, i8 %b) {
 
 define i1 @ugt_eq(i8 %a, i8 %b) {
 ; CHECK-LABEL: @ugt_eq(
-; CHECK-NEXT:    [[CMP1:%.*]] = icmp ugt i8 %a, %b
-; CHECK-NEXT:    [[CMP2:%.*]] = icmp eq i8 %a, %b
-; CHECK-NEXT:    [[AND:%.*]] = and i1 [[CMP1]], [[CMP2]]
-; CHECK-NEXT:    ret i1 [[AND]]
+; CHECK-NEXT:    ret i1 false
 ;
   %cmp1 = icmp ugt i8 %a, %b
   %cmp2 = icmp eq i8 %a, %b
@@ -944,9 +846,7 @@ define i1 @ugt_eq(i8 %a, i8 %b) {
 define i1 @ugt_ne(i8 %a, i8 %b) {
 ; CHECK-LABEL: @ugt_ne(
 ; CHECK-NEXT:    [[CMP1:%.*]] = icmp ugt i8 %a, %b
-; CHECK-NEXT:    [[CMP2:%.*]] = icmp ne i8 %a, %b
-; CHECK-NEXT:    [[AND:%.*]] = and i1 [[CMP1]], [[CMP2]]
-; CHECK-NEXT:    ret i1 [[AND]]
+; CHECK-NEXT:    ret i1 [[CMP1]]
 ;
   %cmp1 = icmp ugt i8 %a, %b
   %cmp2 = icmp ne i8 %a, %b
@@ -1009,9 +909,7 @@ define i1 @ugt_slt(i8 %a, i8 %b) {
 define i1 @ugt_uge(i8 %a, i8 %b) {
 ; CHECK-LABEL: @ugt_uge(
 ; CHECK-NEXT:    [[CMP1:%.*]] = icmp ugt i8 %a, %b
-; CHECK-NEXT:    [[CMP2:%.*]] = icmp uge i8 %a, %b
-; CHECK-NEXT:    [[AND:%.*]] = and i1 [[CMP1]], [[CMP2]]
-; CHECK-NEXT:    ret i1 [[AND]]
+; CHECK-NEXT:    ret i1 [[CMP1]]
 ;
   %cmp1 = icmp ugt i8 %a, %b
   %cmp2 = icmp uge i8 %a, %b
@@ -1022,9 +920,7 @@ define i1 @ugt_uge(i8 %a, i8 %b) {
 define i1 @ugt_ugt(i8 %a, i8 %b) {
 ; CHECK-LABEL: @ugt_ugt(
 ; CHECK-NEXT:    [[CMP1:%.*]] = icmp ugt i8 %a, %b
-; CHECK-NEXT:    [[CMP2:%.*]] = icmp ugt i8 %a, %b
-; CHECK-NEXT:    [[AND:%.*]] = and i1 [[CMP1]], [[CMP2]]
-; CHECK-NEXT:    ret i1 [[AND]]
+; CHECK-NEXT:    ret i1 [[CMP1]]
 ;
   %cmp1 = icmp ugt i8 %a, %b
   %cmp2 = icmp ugt i8 %a, %b
@@ -1034,10 +930,7 @@ define i1 @ugt_ugt(i8 %a, i8 %b) {
 
 define i1 @ugt_ule(i8 %a, i8 %b) {
 ; CHECK-LABEL: @ugt_ule(
-; CHECK-NEXT:    [[CMP1:%.*]] = icmp ugt i8 %a, %b
-; CHECK-NEXT:    [[CMP2:%.*]] = icmp ule i8 %a, %b
-; CHECK-NEXT:    [[AND:%.*]] = and i1 [[CMP1]], [[CMP2]]
-; CHECK-NEXT:    ret i1 [[AND]]
+; CHECK-NEXT:    ret i1 false
 ;
   %cmp1 = icmp ugt i8 %a, %b
   %cmp2 = icmp ule i8 %a, %b
@@ -1047,10 +940,7 @@ define i1 @ugt_ule(i8 %a, i8 %b) {
 
 define i1 @ugt_ult(i8 %a, i8 %b) {
 ; CHECK-LABEL: @ugt_ult(
-; CHECK-NEXT:    [[CMP1:%.*]] = icmp ugt i8 %a, %b
-; CHECK-NEXT:    [[CMP2:%.*]] = icmp ult i8 %a, %b
-; CHECK-NEXT:    [[AND:%.*]] = and i1 [[CMP1]], [[CMP2]]
-; CHECK-NEXT:    ret i1 [[AND]]
+; CHECK-NEXT:    ret i1 false
 ;
   %cmp1 = icmp ugt i8 %a, %b
   %cmp2 = icmp ult i8 %a, %b
@@ -1062,10 +952,8 @@ define i1 @ugt_ult(i8 %a, i8 %b) {
 
 define i1 @ule_eq(i8 %a, i8 %b) {
 ; CHECK-LABEL: @ule_eq(
-; CHECK-NEXT:    [[CMP1:%.*]] = icmp ule i8 %a, %b
 ; CHECK-NEXT:    [[CMP2:%.*]] = icmp eq i8 %a, %b
-; CHECK-NEXT:    [[AND:%.*]] = and i1 [[CMP1]], [[CMP2]]
-; CHECK-NEXT:    ret i1 [[AND]]
+; CHECK-NEXT:    ret i1 [[CMP2]]
 ;
   %cmp1 = icmp ule i8 %a, %b
   %cmp2 = icmp eq i8 %a, %b
@@ -1153,10 +1041,7 @@ define i1 @ule_uge(i8 %a, i8 %b) {
 
 define i1 @ule_ugt(i8 %a, i8 %b) {
 ; CHECK-LABEL: @ule_ugt(
-; CHECK-NEXT:    [[CMP1:%.*]] = icmp ule i8 %a, %b
-; CHECK-NEXT:    [[CMP2:%.*]] = icmp ugt i8 %a, %b
-; CHECK-NEXT:    [[AND:%.*]] = and i1 [[CMP1]], [[CMP2]]
-; CHECK-NEXT:    ret i1 [[AND]]
+; CHECK-NEXT:    ret i1 false
 ;
   %cmp1 = icmp ule i8 %a, %b
   %cmp2 = icmp ugt i8 %a, %b
@@ -1167,9 +1052,7 @@ define i1 @ule_ugt(i8 %a, i8 %b) {
 define i1 @ule_ule(i8 %a, i8 %b) {
 ; CHECK-LABEL: @ule_ule(
 ; CHECK-NEXT:    [[CMP1:%.*]] = icmp ule i8 %a, %b
-; CHECK-NEXT:    [[CMP2:%.*]] = icmp ule i8 %a, %b
-; CHECK-NEXT:    [[AND:%.*]] = and i1 [[CMP1]], [[CMP2]]
-; CHECK-NEXT:    ret i1 [[AND]]
+; CHECK-NEXT:    ret i1 [[CMP1]]
 ;
   %cmp1 = icmp ule i8 %a, %b
   %cmp2 = icmp ule i8 %a, %b
@@ -1179,10 +1062,8 @@ define i1 @ule_ule(i8 %a, i8 %b) {
 
 define i1 @ule_ult(i8 %a, i8 %b) {
 ; CHECK-LABEL: @ule_ult(
-; CHECK-NEXT:    [[CMP1:%.*]] = icmp ule i8 %a, %b
 ; CHECK-NEXT:    [[CMP2:%.*]] = icmp ult i8 %a, %b
-; CHECK-NEXT:    [[AND:%.*]] = and i1 [[CMP1]], [[CMP2]]
-; CHECK-NEXT:    ret i1 [[AND]]
+; CHECK-NEXT:    ret i1 [[CMP2]]
 ;
   %cmp1 = icmp ule i8 %a, %b
   %cmp2 = icmp ult i8 %a, %b
@@ -1194,10 +1075,7 @@ define i1 @ule_ult(i8 %a, i8 %b) {
 
 define i1 @ult_eq(i8 %a, i8 %b) {
 ; CHECK-LABEL: @ult_eq(
-; CHECK-NEXT:    [[CMP1:%.*]] = icmp ult i8 %a, %b
-; CHECK-NEXT:    [[CMP2:%.*]] = icmp eq i8 %a, %b
-; CHECK-NEXT:    [[AND:%.*]] = and i1 [[CMP1]], [[CMP2]]
-; CHECK-NEXT:    ret i1 [[AND]]
+; CHECK-NEXT:    ret i1 false
 ;
   %cmp1 = icmp ult i8 %a, %b
   %cmp2 = icmp eq i8 %a, %b
@@ -1208,9 +1086,7 @@ define i1 @ult_eq(i8 %a, i8 %b) {
 define i1 @ult_ne(i8 %a, i8 %b) {
 ; CHECK-LABEL: @ult_ne(
 ; CHECK-NEXT:    [[CMP1:%.*]] = icmp ult i8 %a, %b
-; CHECK-NEXT:    [[CMP2:%.*]] = icmp ne i8 %a, %b
-; CHECK-NEXT:    [[AND:%.*]] = and i1 [[CMP1]], [[CMP2]]
-; CHECK-NEXT:    ret i1 [[AND]]
+; CHECK-NEXT:    ret i1 [[CMP1]]
 ;
   %cmp1 = icmp ult i8 %a, %b
   %cmp2 = icmp ne i8 %a, %b
@@ -1272,10 +1148,7 @@ define i1 @ult_slt(i8 %a, i8 %b) {
 
 define i1 @ult_uge(i8 %a, i8 %b) {
 ; CHECK-LABEL: @ult_uge(
-; CHECK-NEXT:    [[CMP1:%.*]] = icmp ult i8 %a, %b
-; CHECK-NEXT:    [[CMP2:%.*]] = icmp uge i8 %a, %b
-; CHECK-NEXT:    [[AND:%.*]] = and i1 [[CMP1]], [[CMP2]]
-; CHECK-NEXT:    ret i1 [[AND]]
+; CHECK-NEXT:    ret i1 false
 ;
   %cmp1 = icmp ult i8 %a, %b
   %cmp2 = icmp uge i8 %a, %b
@@ -1285,10 +1158,7 @@ define i1 @ult_uge(i8 %a, i8 %b) {
 
 define i1 @ult_ugt(i8 %a, i8 %b) {
 ; CHECK-LABEL: @ult_ugt(
-; CHECK-NEXT:    [[CMP1:%.*]] = icmp ult i8 %a, %b
-; CHECK-NEXT:    [[CMP2:%.*]] = icmp ugt i8 %a, %b
-; CHECK-NEXT:    [[AND:%.*]] = and i1 [[CMP1]], [[CMP2]]
-; CHECK-NEXT:    ret i1 [[AND]]
+; CHECK-NEXT:    ret i1 false
 ;
   %cmp1 = icmp ult i8 %a, %b
   %cmp2 = icmp ugt i8 %a, %b
@@ -1299,9 +1169,7 @@ define i1 @ult_ugt(i8 %a, i8 %b) {
 define i1 @ult_ule(i8 %a, i8 %b) {
 ; CHECK-LABEL: @ult_ule(
 ; CHECK-NEXT:    [[CMP1:%.*]] = icmp ult i8 %a, %b
-; CHECK-NEXT:    [[CMP2:%.*]] = icmp ule i8 %a, %b
-; CHECK-NEXT:    [[AND:%.*]] = and i1 [[CMP1]], [[CMP2]]
-; CHECK-NEXT:    ret i1 [[AND]]
+; CHECK-NEXT:    ret i1 [[CMP1]]
 ;
   %cmp1 = icmp ult i8 %a, %b
   %cmp2 = icmp ule i8 %a, %b
@@ -1312,9 +1180,7 @@ define i1 @ult_ule(i8 %a, i8 %b) {
 define i1 @ult_ult(i8 %a, i8 %b) {
 ; CHECK-LABEL: @ult_ult(
 ; CHECK-NEXT:    [[CMP1:%.*]] = icmp ult i8 %a, %b
-; CHECK-NEXT:    [[CMP2:%.*]] = icmp ult i8 %a, %b
-; CHECK-NEXT:    [[AND:%.*]] = and i1 [[CMP1]], [[CMP2]]
-; CHECK-NEXT:    ret i1 [[AND]]
+; CHECK-NEXT:    ret i1 [[CMP1]]
 ;
   %cmp1 = icmp ult i8 %a, %b
   %cmp2 = icmp ult i8 %a, %b
@@ -1326,10 +1192,7 @@ define i1 @ult_ult(i8 %a, i8 %b) {
 
 define <2 x i1> @ult_uge_vec(<2 x i8> %a, <2 x i8> %b) {
 ; CHECK-LABEL: @ult_uge_vec(
-; CHECK-NEXT:    [[CMP1:%.*]] = icmp ult <2 x i8> %a, %b
-; CHECK-NEXT:    [[CMP2:%.*]] = icmp uge <2 x i8> %a, %b
-; CHECK-NEXT:    [[AND:%.*]] = and <2 x i1> [[CMP1]], [[CMP2]]
-; CHECK-NEXT:    ret <2 x i1> [[AND]]
+; CHECK-NEXT:    ret <2 x i1> zeroinitializer
 ;
   %cmp1 = icmp ult <2 x i8> %a, %b
   %cmp2 = icmp uge <2 x i8> %a, %b
@@ -1340,9 +1203,7 @@ define <2 x i1> @ult_uge_vec(<2 x i8> %a, <2 x i8> %b) {
 define <2 x i1> @ult_ule_vec(<2 x i8> %a, <2 x i8> %b) {
 ; CHECK-LABEL: @ult_ule_vec(
 ; CHECK-NEXT:    [[CMP1:%.*]] = icmp ult <2 x i8> %a, %b
-; CHECK-NEXT:    [[CMP2:%.*]] = icmp ule <2 x i8> %a, %b
-; CHECK-NEXT:    [[AND:%.*]] = and <2 x i1> [[CMP1]], [[CMP2]]
-; CHECK-NEXT:    ret <2 x i1> [[AND]]
+; CHECK-NEXT:    ret <2 x i1> [[CMP1]]
 ;
   %cmp1 = icmp ult <2 x i8> %a, %b
   %cmp2 = icmp ule <2 x i8> %a, %b