From b88181df96c71b137871978a42169416786fbfe4 Mon Sep 17 00:00:00 2001
From: David Bolvansky <david.bolvansky@gmail.com>
Date: Thu, 11 Jul 2019 19:39:20 +0000
Subject: [PATCH] [NFC] Revisited tests for D64285

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@365815 91177308-0d34-0410-b5e6-96231b3b80d8
---
 test/Transforms/InstCombine/ashr-lshr.ll  | 283 +++++++++++-----
 test/Transforms/InstSimplify/ashr-lshr.ll | 379 ----------------------
 2 files changed, 201 insertions(+), 461 deletions(-)
 delete mode 100644 test/Transforms/InstSimplify/ashr-lshr.ll

diff --git a/test/Transforms/InstCombine/ashr-lshr.ll b/test/Transforms/InstCombine/ashr-lshr.ll
index 3aa8d209cab..faacb32bac9 100644
--- a/test/Transforms/InstCombine/ashr-lshr.ll
+++ b/test/Transforms/InstCombine/ashr-lshr.ll
@@ -1,8 +1,8 @@
 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
 ; RUN: opt < %s -instcombine -S | FileCheck %s
 
-define i32 @ashr_lshr(i32 %x, i32 %y) {
-; CHECK-LABEL: @ashr_lshr(
+define i32 @ashr_lshr_exact_ashr_only(i32 %x, i32 %y) {
+; CHECK-LABEL: @ashr_lshr_exact_ashr_only(
 ; CHECK-NEXT:    [[CMP:%.*]] = icmp sgt i32 [[X:%.*]], -1
 ; CHECK-NEXT:    [[L:%.*]] = lshr i32 [[X]], [[Y:%.*]]
 ; CHECK-NEXT:    [[R:%.*]] = ashr exact i32 [[X]], [[Y]]
@@ -16,6 +16,51 @@ define i32 @ashr_lshr(i32 %x, i32 %y) {
   ret i32 %ret
 }
 
+define i32 @ashr_lshr_no_exact(i32 %x, i32 %y) {
+; CHECK-LABEL: @ashr_lshr_no_exact(
+; CHECK-NEXT:    [[CMP:%.*]] = icmp sgt i32 [[X:%.*]], -1
+; CHECK-NEXT:    [[L:%.*]] = lshr i32 [[X]], [[Y:%.*]]
+; CHECK-NEXT:    [[R:%.*]] = ashr i32 [[X]], [[Y]]
+; CHECK-NEXT:    [[RET:%.*]] = select i1 [[CMP]], i32 [[L]], i32 [[R]]
+; CHECK-NEXT:    ret i32 [[RET]]
+;
+  %cmp = icmp sgt i32 %x, -1
+  %l = lshr i32 %x, %y
+  %r = ashr i32 %x, %y
+  %ret = select i1 %cmp, i32 %l, i32 %r
+  ret i32 %ret
+}
+
+define i32 @ashr_lshr_exact_both(i32 %x, i32 %y) {
+; CHECK-LABEL: @ashr_lshr_exact_both(
+; CHECK-NEXT:    [[CMP:%.*]] = icmp sgt i32 [[X:%.*]], -1
+; CHECK-NEXT:    [[L:%.*]] = lshr exact i32 [[X]], [[Y:%.*]]
+; CHECK-NEXT:    [[R:%.*]] = ashr exact i32 [[X]], [[Y]]
+; CHECK-NEXT:    [[RET:%.*]] = select i1 [[CMP]], i32 [[L]], i32 [[R]]
+; CHECK-NEXT:    ret i32 [[RET]]
+;
+  %cmp = icmp sgt i32 %x, -1
+  %l = lshr exact i32 %x, %y
+  %r = ashr exact i32 %x, %y
+  %ret = select i1 %cmp, i32 %l, i32 %r
+  ret i32 %ret
+}
+
+define i32 @ashr_lshr_exact_lshr_only(i32 %x, i32 %y) {
+; CHECK-LABEL: @ashr_lshr_exact_lshr_only(
+; CHECK-NEXT:    [[CMP:%.*]] = icmp sgt i32 [[X:%.*]], -1
+; CHECK-NEXT:    [[L:%.*]] = lshr exact i32 [[X]], [[Y:%.*]]
+; CHECK-NEXT:    [[R:%.*]] = ashr i32 [[X]], [[Y]]
+; CHECK-NEXT:    [[RET:%.*]] = select i1 [[CMP]], i32 [[L]], i32 [[R]]
+; CHECK-NEXT:    ret i32 [[RET]]
+;
+  %cmp = icmp sgt i32 %x, -1
+  %l = lshr exact i32 %x, %y
+  %r = ashr i32 %x, %y
+  %ret = select i1 %cmp, i32 %l, i32 %r
+  ret i32 %ret
+}
+
 define i32 @ashr_lshr2(i32 %x, i32 %y) {
 ; CHECK-LABEL: @ashr_lshr2(
 ; CHECK-NEXT:    [[CMP:%.*]] = icmp sgt i32 [[X:%.*]], 5
@@ -31,8 +76,53 @@ define i32 @ashr_lshr2(i32 %x, i32 %y) {
   ret i32 %ret
 }
 
-define <2 x i32> @ashr_lshr_vec(<2 x i32> %x, <2 x i32> %y) {
-; CHECK-LABEL: @ashr_lshr_vec(
+define <2 x i32> @ashr_lshr_splat_vec(<2 x i32> %x, <2 x i32> %y) {
+; CHECK-LABEL: @ashr_lshr_splat_vec(
+; CHECK-NEXT:    [[CMP:%.*]] = icmp sgt <2 x i32> [[X:%.*]], <i32 -1, i32 -1>
+; CHECK-NEXT:    [[L:%.*]] = lshr <2 x i32> [[X]], [[Y:%.*]]
+; CHECK-NEXT:    [[R:%.*]] = ashr <2 x i32> [[X]], [[Y]]
+; CHECK-NEXT:    [[RET:%.*]] = select <2 x i1> [[CMP]], <2 x i32> [[L]], <2 x i32> [[R]]
+; CHECK-NEXT:    ret <2 x i32> [[RET]]
+;
+  %cmp = icmp sgt <2 x i32> %x, <i32 -1, i32 -1>
+  %l = lshr <2 x i32> %x, %y
+  %r = ashr <2 x i32> %x, %y
+  %ret = select <2 x i1> %cmp, <2 x i32> %l, <2 x i32> %r
+  ret <2 x i32> %ret
+}
+
+define <2 x i32> @ashr_lshr_splat_vec2(<2 x i32> %x, <2 x i32> %y) {
+; CHECK-LABEL: @ashr_lshr_splat_vec2(
+; CHECK-NEXT:    [[CMP:%.*]] = icmp sgt <2 x i32> [[X:%.*]], <i32 -1, i32 -1>
+; CHECK-NEXT:    [[L:%.*]] = lshr exact <2 x i32> [[X]], [[Y:%.*]]
+; CHECK-NEXT:    [[R:%.*]] = ashr exact <2 x i32> [[X]], [[Y]]
+; CHECK-NEXT:    [[RET:%.*]] = select <2 x i1> [[CMP]], <2 x i32> [[L]], <2 x i32> [[R]]
+; CHECK-NEXT:    ret <2 x i32> [[RET]]
+;
+  %cmp = icmp sgt <2 x i32> %x, <i32 -1, i32 -1>
+  %l = lshr exact <2 x i32> %x, %y
+  %r = ashr exact <2 x i32> %x, %y
+  %ret = select <2 x i1> %cmp, <2 x i32> %l, <2 x i32> %r
+  ret <2 x i32> %ret
+}
+
+define <2 x i32> @ashr_lshr_splat_vec3(<2 x i32> %x, <2 x i32> %y) {
+; CHECK-LABEL: @ashr_lshr_splat_vec3(
+; CHECK-NEXT:    [[CMP:%.*]] = icmp sgt <2 x i32> [[X:%.*]], <i32 -1, i32 -1>
+; CHECK-NEXT:    [[L:%.*]] = lshr exact <2 x i32> [[X]], [[Y:%.*]]
+; CHECK-NEXT:    [[R:%.*]] = ashr <2 x i32> [[X]], [[Y]]
+; CHECK-NEXT:    [[RET:%.*]] = select <2 x i1> [[CMP]], <2 x i32> [[L]], <2 x i32> [[R]]
+; CHECK-NEXT:    ret <2 x i32> [[RET]]
+;
+  %cmp = icmp sgt <2 x i32> %x, <i32 -1, i32 -1>
+  %l = lshr exact <2 x i32> %x, %y
+  %r = ashr <2 x i32> %x, %y
+  %ret = select <2 x i1> %cmp, <2 x i32> %l, <2 x i32> %r
+  ret <2 x i32> %ret
+}
+
+define <2 x i32> @ashr_lshr_splat_vec4(<2 x i32> %x, <2 x i32> %y) {
+; CHECK-LABEL: @ashr_lshr_splat_vec4(
 ; CHECK-NEXT:    [[CMP:%.*]] = icmp sgt <2 x i32> [[X:%.*]], <i32 -1, i32 -1>
 ; CHECK-NEXT:    [[L:%.*]] = lshr <2 x i32> [[X]], [[Y:%.*]]
 ; CHECK-NEXT:    [[R:%.*]] = ashr exact <2 x i32> [[X]], [[Y]]
@@ -46,6 +136,66 @@ define <2 x i32> @ashr_lshr_vec(<2 x i32> %x, <2 x i32> %y) {
   ret <2 x i32> %ret
 }
 
+define <2 x i32> @ashr_lshr_nonsplat_vec(<2 x i32> %x, <2 x i32> %y) {
+; CHECK-LABEL: @ashr_lshr_nonsplat_vec(
+; CHECK-NEXT:    [[CMP:%.*]] = icmp sgt <2 x i32> [[X:%.*]], <i32 -1, i32 1>
+; CHECK-NEXT:    [[L:%.*]] = lshr <2 x i32> [[X]], [[Y:%.*]]
+; CHECK-NEXT:    [[R:%.*]] = ashr <2 x i32> [[X]], [[Y]]
+; CHECK-NEXT:    [[RET:%.*]] = select <2 x i1> [[CMP]], <2 x i32> [[L]], <2 x i32> [[R]]
+; CHECK-NEXT:    ret <2 x i32> [[RET]]
+;
+  %cmp = icmp sgt <2 x i32> %x, <i32 -1, i32 1>
+  %l = lshr <2 x i32> %x, %y
+  %r = ashr <2 x i32> %x, %y
+  %ret = select <2 x i1> %cmp, <2 x i32> %l, <2 x i32> %r
+  ret <2 x i32> %ret
+}
+
+define <2 x i32> @ashr_lshr_nonsplat_vec2(<2 x i32> %x, <2 x i32> %y) {
+; CHECK-LABEL: @ashr_lshr_nonsplat_vec2(
+; CHECK-NEXT:    [[CMP:%.*]] = icmp sgt <2 x i32> [[X:%.*]], <i32 2, i32 4>
+; CHECK-NEXT:    [[L:%.*]] = lshr exact <2 x i32> [[X]], [[Y:%.*]]
+; CHECK-NEXT:    [[R:%.*]] = ashr exact <2 x i32> [[X]], [[Y]]
+; CHECK-NEXT:    [[RET:%.*]] = select <2 x i1> [[CMP]], <2 x i32> [[L]], <2 x i32> [[R]]
+; CHECK-NEXT:    ret <2 x i32> [[RET]]
+;
+  %cmp = icmp sgt <2 x i32> %x, <i32 2, i32 4>
+  %l = lshr exact <2 x i32> %x, %y
+  %r = ashr exact <2 x i32> %x, %y
+  %ret = select <2 x i1> %cmp, <2 x i32> %l, <2 x i32> %r
+  ret <2 x i32> %ret
+}
+
+define <2 x i32> @ashr_lshr_nonsplat_vec3(<2 x i32> %x, <2 x i32> %y) {
+; CHECK-LABEL: @ashr_lshr_nonsplat_vec3(
+; CHECK-NEXT:    [[CMP:%.*]] = icmp sgt <2 x i32> [[X:%.*]], <i32 5, i32 6>
+; CHECK-NEXT:    [[L:%.*]] = lshr exact <2 x i32> [[X]], [[Y:%.*]]
+; CHECK-NEXT:    [[R:%.*]] = ashr <2 x i32> [[X]], [[Y]]
+; CHECK-NEXT:    [[RET:%.*]] = select <2 x i1> [[CMP]], <2 x i32> [[L]], <2 x i32> [[R]]
+; CHECK-NEXT:    ret <2 x i32> [[RET]]
+;
+  %cmp = icmp sgt <2 x i32> %x, <i32 5, i32 6>
+  %l = lshr exact <2 x i32> %x, %y
+  %r = ashr <2 x i32> %x, %y
+  %ret = select <2 x i1> %cmp, <2 x i32> %l, <2 x i32> %r
+  ret <2 x i32> %ret
+}
+
+define <2 x i32> @ashr_lshr_nonsplat_vec4(<2 x i32> %x, <2 x i32> %y) {
+; CHECK-LABEL: @ashr_lshr_nonsplat_vec4(
+; CHECK-NEXT:    [[CMP:%.*]] = icmp sgt <2 x i32> [[X:%.*]], <i32 8, i32 7>
+; CHECK-NEXT:    [[L:%.*]] = lshr <2 x i32> [[X]], [[Y:%.*]]
+; CHECK-NEXT:    [[R:%.*]] = ashr exact <2 x i32> [[X]], [[Y]]
+; CHECK-NEXT:    [[RET:%.*]] = select <2 x i1> [[CMP]], <2 x i32> [[L]], <2 x i32> [[R]]
+; CHECK-NEXT:    ret <2 x i32> [[RET]]
+;
+  %cmp = icmp sgt <2 x i32> %x, <i32 8, i32 7>
+  %l = lshr <2 x i32> %x, %y
+  %r = ashr exact <2 x i32> %x, %y
+  %ret = select <2 x i1> %cmp, <2 x i32> %l, <2 x i32> %r
+  ret <2 x i32> %ret
+}
+
 define i32 @ashr_lshr_cst(i32 %x, i32 %y) {
 ; CHECK-LABEL: @ashr_lshr_cst(
 ; CHECK-NEXT:    [[CMP:%.*]] = icmp slt i32 [[X:%.*]], 1
@@ -106,8 +256,8 @@ define i32 @ashr_lshr_inv2(i32 %x, i32 %y) {
   ret i32 %ret
 }
 
-define <2 x i32> @ashr_lshr_inv_vec(<2 x i32> %x, <2 x i32> %y) {
-; CHECK-LABEL: @ashr_lshr_inv_vec(
+define <2 x i32> @ashr_lshr_inv_splat_vec(<2 x i32> %x, <2 x i32> %y) {
+; CHECK-LABEL: @ashr_lshr_inv_splat_vec(
 ; CHECK-NEXT:    [[CMP:%.*]] = icmp slt <2 x i32> [[X:%.*]], <i32 1, i32 1>
 ; CHECK-NEXT:    [[L:%.*]] = lshr <2 x i32> [[X]], [[Y:%.*]]
 ; CHECK-NEXT:    [[R:%.*]] = ashr exact <2 x i32> [[X]], [[Y]]
@@ -121,6 +271,51 @@ define <2 x i32> @ashr_lshr_inv_vec(<2 x i32> %x, <2 x i32> %y) {
   ret <2 x i32> %ret
 }
 
+define <2 x i32> @ashr_lshr_inv_nonsplat_vec(<2 x i32> %x, <2 x i32> %y) {
+; CHECK-LABEL: @ashr_lshr_inv_nonsplat_vec(
+; CHECK-NEXT:    [[CMP:%.*]] = icmp slt <2 x i32> [[X:%.*]], <i32 4, i32 5>
+; CHECK-NEXT:    [[L:%.*]] = lshr <2 x i32> [[X]], [[Y:%.*]]
+; CHECK-NEXT:    [[R:%.*]] = ashr exact <2 x i32> [[X]], [[Y]]
+; CHECK-NEXT:    [[RET:%.*]] = select <2 x i1> [[CMP]], <2 x i32> [[R]], <2 x i32> [[L]]
+; CHECK-NEXT:    ret <2 x i32> [[RET]]
+;
+  %cmp = icmp slt <2 x i32> %x, <i32 4, i32 5>
+  %l = lshr <2 x i32> %x, %y
+  %r = ashr exact <2 x i32> %x, %y
+  %ret = select <2 x i1> %cmp, <2 x i32> %r, <2 x i32> %l
+  ret <2 x i32> %ret
+}
+
+define <2 x i32> @ashr_lshr_vec_undef(<2 x i32> %x, <2 x i32> %y) {
+; CHECK-LABEL: @ashr_lshr_vec_undef(
+; CHECK-NEXT:    [[CMP:%.*]] = icmp sgt <2 x i32> [[X:%.*]], <i32 undef, i32 -1>
+; CHECK-NEXT:    [[L:%.*]] = lshr <2 x i32> [[X]], [[Y:%.*]]
+; CHECK-NEXT:    [[R:%.*]] = ashr exact <2 x i32> [[X]], [[Y]]
+; CHECK-NEXT:    [[RET:%.*]] = select <2 x i1> [[CMP]], <2 x i32> [[L]], <2 x i32> [[R]]
+; CHECK-NEXT:    ret <2 x i32> [[RET]]
+;
+  %cmp = icmp sgt <2 x i32> %x, <i32 undef, i32 -1>
+  %l = lshr <2 x i32> %x, %y
+  %r = ashr exact <2 x i32> %x, %y
+  %ret = select <2 x i1> %cmp, <2 x i32> %l, <2 x i32> %r
+  ret <2 x i32> %ret
+}
+
+define <2 x i32> @ashr_lshr_vec_undef2(<2 x i32> %x, <2 x i32> %y) {
+; CHECK-LABEL: @ashr_lshr_vec_undef2(
+; CHECK-NEXT:    [[CMP:%.*]] = icmp slt <2 x i32> [[X:%.*]], <i32 1, i32 undef>
+; CHECK-NEXT:    [[L:%.*]] = lshr exact <2 x i32> [[X]], [[Y:%.*]]
+; CHECK-NEXT:    [[R:%.*]] = ashr exact <2 x i32> [[X]], [[Y]]
+; CHECK-NEXT:    [[RET:%.*]] = select <2 x i1> [[CMP]], <2 x i32> [[R]], <2 x i32> [[L]]
+; CHECK-NEXT:    ret <2 x i32> [[RET]]
+;
+  %cmp = icmp slt <2 x i32> %x, <i32 1, i32 undef>
+  %l = lshr exact <2 x i32> %x, %y
+  %r = ashr exact <2 x i32> %x, %y
+  %ret = select <2 x i1> %cmp, <2 x i32> %r, <2 x i32> %l
+  ret <2 x i32> %ret
+}
+
 ; Negative tests
 
 define i32 @ashr_lshr_wrong_cst(i32 %x, i32 %y) {
@@ -302,79 +497,3 @@ define <2 x i32> @ashr_lshr_inv_vec_wrong_pred(<2 x i32> %x, <2 x i32> %y) {
   %ret = select <2 x i1> %cmp, <2 x i32> %r, <2 x i32> %l
   ret <2 x i32> %ret
 }
-
-define i32 @ashr_lshr_no_exact(i32 %x, i32 %y) {
-; CHECK-LABEL: @ashr_lshr_no_exact(
-; CHECK-NEXT:    [[CMP:%.*]] = icmp sgt i32 [[X:%.*]], -1
-; CHECK-NEXT:    [[L:%.*]] = lshr i32 [[X]], [[Y:%.*]]
-; CHECK-NEXT:    [[R:%.*]] = ashr i32 [[X]], [[Y]]
-; CHECK-NEXT:    [[RET:%.*]] = select i1 [[CMP]], i32 [[L]], i32 [[R]]
-; CHECK-NEXT:    ret i32 [[RET]]
-;
-  %cmp = icmp sgt i32 %x, -1
-  %l = lshr i32 %x, %y
-  %r = ashr i32 %x, %y
-  %ret = select i1 %cmp, i32 %l, i32 %r
-  ret i32 %ret
-}
-
-
-define i32 @ashr_lshr_exact_both(i32 %x, i32 %y) {
-; CHECK-LABEL: @ashr_lshr_exact_both(
-; CHECK-NEXT:    [[CMP:%.*]] = icmp sgt i32 [[X:%.*]], -1
-; CHECK-NEXT:    [[L:%.*]] = lshr exact i32 [[X]], [[Y:%.*]]
-; CHECK-NEXT:    [[R:%.*]] = ashr exact i32 [[X]], [[Y]]
-; CHECK-NEXT:    [[RET:%.*]] = select i1 [[CMP]], i32 [[L]], i32 [[R]]
-; CHECK-NEXT:    ret i32 [[RET]]
-;
-  %cmp = icmp sgt i32 %x, -1
-  %l = lshr exact i32 %x, %y
-  %r = ashr exact i32 %x, %y
-  %ret = select i1 %cmp, i32 %l, i32 %r
-  ret i32 %ret
-}
-
-define i32 @ashr_lshr_exact_mismatch2(i32 %x, i32 %y) {
-; CHECK-LABEL: @ashr_lshr_exact_mismatch2(
-; CHECK-NEXT:    [[CMP:%.*]] = icmp sgt i32 [[X:%.*]], -1
-; CHECK-NEXT:    [[L:%.*]] = lshr exact i32 [[X]], [[Y:%.*]]
-; CHECK-NEXT:    [[R:%.*]] = ashr i32 [[X]], [[Y]]
-; CHECK-NEXT:    [[RET:%.*]] = select i1 [[CMP]], i32 [[L]], i32 [[R]]
-; CHECK-NEXT:    ret i32 [[RET]]
-;
-  %cmp = icmp sgt i32 %x, -1
-  %l = lshr exact i32 %x, %y
-  %r = ashr i32 %x, %y
-  %ret = select i1 %cmp, i32 %l, i32 %r
-  ret i32 %ret
-}
-
-define <2 x i32> @ashr_lshr_vec_undef(<2 x i32> %x, <2 x i32> %y) {
-; CHECK-LABEL: @ashr_lshr_vec_undef(
-; CHECK-NEXT:    [[CMP:%.*]] = icmp sgt <2 x i32> [[X:%.*]], <i32 undef, i32 -1>
-; CHECK-NEXT:    [[L:%.*]] = lshr <2 x i32> [[X]], [[Y:%.*]]
-; CHECK-NEXT:    [[R:%.*]] = ashr exact <2 x i32> [[X]], [[Y]]
-; CHECK-NEXT:    [[RET:%.*]] = select <2 x i1> [[CMP]], <2 x i32> [[L]], <2 x i32> [[R]]
-; CHECK-NEXT:    ret <2 x i32> [[RET]]
-;
-  %cmp = icmp sgt <2 x i32> %x, <i32 undef, i32 -1>
-  %l = lshr <2 x i32> %x, %y
-  %r = ashr exact <2 x i32> %x, %y
-  %ret = select <2 x i1> %cmp, <2 x i32> %l, <2 x i32> %r
-  ret <2 x i32> %ret
-}
-
-define <2 x i32> @ashr_lshr_vec_undef2(<2 x i32> %x, <2 x i32> %y) {
-; CHECK-LABEL: @ashr_lshr_vec_undef2(
-; CHECK-NEXT:    [[CMP:%.*]] = icmp slt <2 x i32> [[X:%.*]], <i32 1, i32 undef>
-; CHECK-NEXT:    [[L:%.*]] = lshr <2 x i32> [[X]], [[Y:%.*]]
-; CHECK-NEXT:    [[R:%.*]] = ashr exact <2 x i32> [[X]], [[Y]]
-; CHECK-NEXT:    [[RET:%.*]] = select <2 x i1> [[CMP]], <2 x i32> [[R]], <2 x i32> [[L]]
-; CHECK-NEXT:    ret <2 x i32> [[RET]]
-;
-  %cmp = icmp slt <2 x i32> %x, <i32 1, i32 undef>
-  %l = lshr <2 x i32> %x, %y
-  %r = ashr exact <2 x i32> %x, %y
-  %ret = select <2 x i1> %cmp, <2 x i32> %r, <2 x i32> %l
-  ret <2 x i32> %ret
-}
diff --git a/test/Transforms/InstSimplify/ashr-lshr.ll b/test/Transforms/InstSimplify/ashr-lshr.ll
deleted file mode 100644
index 07e6934b6c3..00000000000
--- a/test/Transforms/InstSimplify/ashr-lshr.ll
+++ /dev/null
@@ -1,379 +0,0 @@
-; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
-; RUN: opt < %s -instsimplify -S | FileCheck %s
-
-define i32 @ashr_lshr(i32 %x, i32 %y) {
-; CHECK-LABEL: @ashr_lshr(
-; CHECK-NEXT:    [[CMP:%.*]] = icmp sgt i32 [[X:%.*]], -1
-; CHECK-NEXT:    [[L:%.*]] = lshr i32 [[X]], [[Y:%.*]]
-; CHECK-NEXT:    [[R:%.*]] = ashr i32 [[X]], [[Y]]
-; CHECK-NEXT:    [[RET:%.*]] = select i1 [[CMP]], i32 [[L]], i32 [[R]]
-; CHECK-NEXT:    ret i32 [[RET]]
-;
-  %cmp = icmp sgt i32 %x, -1
-  %l = lshr i32 %x, %y
-  %r = ashr i32 %x, %y
-  %ret = select i1 %cmp, i32 %l, i32 %r
-  ret i32 %ret
-}
-
-define i32 @ashr_lshr2(i32 %x, i32 %y) {
-; CHECK-LABEL: @ashr_lshr2(
-; CHECK-NEXT:    [[CMP:%.*]] = icmp sgt i32 [[X:%.*]], 8
-; CHECK-NEXT:    [[L:%.*]] = lshr i32 [[X]], [[Y:%.*]]
-; CHECK-NEXT:    [[R:%.*]] = ashr i32 [[X]], [[Y]]
-; CHECK-NEXT:    [[RET:%.*]] = select i1 [[CMP]], i32 [[L]], i32 [[R]]
-; CHECK-NEXT:    ret i32 [[RET]]
-;
-  %cmp = icmp sgt i32 %x, 8
-  %l = lshr i32 %x, %y
-  %r = ashr i32 %x, %y
-  %ret = select i1 %cmp, i32 %l, i32 %r
-  ret i32 %ret
-}
-
-define i32 @ashr_lshr_exact_both(i32 %x, i32 %y) {
-; CHECK-LABEL: @ashr_lshr_exact_both(
-; CHECK-NEXT:    [[CMP:%.*]] = icmp sgt i32 [[X:%.*]], -1
-; CHECK-NEXT:    [[L:%.*]] = lshr exact i32 [[X]], [[Y:%.*]]
-; CHECK-NEXT:    [[R:%.*]] = ashr exact i32 [[X]], [[Y]]
-; CHECK-NEXT:    [[RET:%.*]] = select i1 [[CMP]], i32 [[L]], i32 [[R]]
-; CHECK-NEXT:    ret i32 [[RET]]
-;
-  %cmp = icmp sgt i32 %x, -1
-  %l = lshr exact i32 %x, %y
-  %r = ashr exact i32 %x, %y
-  %ret = select i1 %cmp, i32 %l, i32 %r
-  ret i32 %ret
-}
-
-define i32 @ashr_lshr_exact_lshr_only(i32 %x, i32 %y) {
-; CHECK-LABEL: @ashr_lshr_exact_lshr_only(
-; CHECK-NEXT:    [[CMP:%.*]] = icmp sgt i32 [[X:%.*]], -1
-; CHECK-NEXT:    [[L:%.*]] = lshr exact i32 [[X]], [[Y:%.*]]
-; CHECK-NEXT:    [[R:%.*]] = ashr i32 [[X]], [[Y]]
-; CHECK-NEXT:    [[RET:%.*]] = select i1 [[CMP]], i32 [[L]], i32 [[R]]
-; CHECK-NEXT:    ret i32 [[RET]]
-;
-  %cmp = icmp sgt i32 %x, -1
-  %l = lshr exact i32 %x, %y
-  %r = ashr i32 %x, %y
-  %ret = select i1 %cmp, i32 %l, i32 %r
-  ret i32 %ret
-}
-
-define <2 x i32> @ashr_lshr_vec(<2 x i32> %x, <2 x i32> %y) {
-; CHECK-LABEL: @ashr_lshr_vec(
-; CHECK-NEXT:    [[CMP:%.*]] = icmp sgt <2 x i32> [[X:%.*]], <i32 -1, i32 -1>
-; CHECK-NEXT:    [[L:%.*]] = lshr <2 x i32> [[X]], [[Y:%.*]]
-; CHECK-NEXT:    [[R:%.*]] = ashr <2 x i32> [[X]], [[Y]]
-; CHECK-NEXT:    [[RET:%.*]] = select <2 x i1> [[CMP]], <2 x i32> [[L]], <2 x i32> [[R]]
-; CHECK-NEXT:    ret <2 x i32> [[RET]]
-;
-  %cmp = icmp sgt <2 x i32> %x, <i32 -1, i32 -1>
-  %l = lshr <2 x i32> %x, %y
-  %r = ashr <2 x i32> %x, %y
-  %ret = select <2 x i1> %cmp, <2 x i32> %l, <2 x i32> %r
-  ret <2 x i32> %ret
-}
-
-define <2 x i32> @ashr_lshr_vec2(<2 x i32> %x, <2 x i32> %y) {
-; CHECK-LABEL: @ashr_lshr_vec2(
-; CHECK-NEXT:    [[CMP:%.*]] = icmp sgt <2 x i32> [[X:%.*]], <i32 -1, i32 -1>
-; CHECK-NEXT:    [[L:%.*]] = lshr exact <2 x i32> [[X]], [[Y:%.*]]
-; CHECK-NEXT:    [[R:%.*]] = ashr exact <2 x i32> [[X]], [[Y]]
-; CHECK-NEXT:    [[RET:%.*]] = select <2 x i1> [[CMP]], <2 x i32> [[L]], <2 x i32> [[R]]
-; CHECK-NEXT:    ret <2 x i32> [[RET]]
-;
-  %cmp = icmp sgt <2 x i32> %x, <i32 -1, i32 -1>
-  %l = lshr exact <2 x i32> %x, %y
-  %r = ashr exact <2 x i32> %x, %y
-  %ret = select <2 x i1> %cmp, <2 x i32> %l, <2 x i32> %r
-  ret <2 x i32> %ret
-}
-
-define <2 x i32> @ashr_lshr_vec3(<2 x i32> %x, <2 x i32> %y) {
-; CHECK-LABEL: @ashr_lshr_vec3(
-; CHECK-NEXT:    [[CMP:%.*]] = icmp sgt <2 x i32> [[X:%.*]], <i32 -1, i32 -1>
-; CHECK-NEXT:    [[L:%.*]] = lshr exact <2 x i32> [[X]], [[Y:%.*]]
-; CHECK-NEXT:    [[R:%.*]] = ashr <2 x i32> [[X]], [[Y]]
-; CHECK-NEXT:    [[RET:%.*]] = select <2 x i1> [[CMP]], <2 x i32> [[L]], <2 x i32> [[R]]
-; CHECK-NEXT:    ret <2 x i32> [[RET]]
-;
-  %cmp = icmp sgt <2 x i32> %x, <i32 -1, i32 -1>
-  %l = lshr exact <2 x i32> %x, %y
-  %r = ashr <2 x i32> %x, %y
-  %ret = select <2 x i1> %cmp, <2 x i32> %l, <2 x i32> %r
-  ret <2 x i32> %ret
-}
-
-define i32 @ashr_lshr_inv(i32 %x, i32 %y) {
-; CHECK-LABEL: @ashr_lshr_inv(
-; CHECK-NEXT:    [[CMP:%.*]] = icmp slt i32 [[X:%.*]], 1
-; CHECK-NEXT:    [[L:%.*]] = lshr i32 [[X]], [[Y:%.*]]
-; CHECK-NEXT:    [[R:%.*]] = ashr i32 [[X]], [[Y]]
-; CHECK-NEXT:    [[RET:%.*]] = select i1 [[CMP]], i32 [[R]], i32 [[L]]
-; CHECK-NEXT:    ret i32 [[RET]]
-;
-  %cmp = icmp slt i32 %x, 1
-  %l = lshr i32 %x, %y
-  %r = ashr i32 %x, %y
-  %ret = select i1 %cmp, i32 %r, i32 %l
-  ret i32 %ret
-}
-
-define i32 @ashr_lshr_inv2(i32 %x, i32 %y) {
-; CHECK-LABEL: @ashr_lshr_inv2(
-; CHECK-NEXT:    [[CMP:%.*]] = icmp slt i32 [[X:%.*]], 5
-; CHECK-NEXT:    [[L:%.*]] = lshr i32 [[X]], [[Y:%.*]]
-; CHECK-NEXT:    [[R:%.*]] = ashr i32 [[X]], [[Y]]
-; CHECK-NEXT:    [[RET:%.*]] = select i1 [[CMP]], i32 [[R]], i32 [[L]]
-; CHECK-NEXT:    ret i32 [[RET]]
-;
-  %cmp = icmp slt i32 %x, 5
-  %l = lshr i32 %x, %y
-  %r = ashr i32 %x, %y
-  %ret = select i1 %cmp, i32 %r, i32 %l
-  ret i32 %ret
-}
-
-define <2 x i32> @ashr_lshr_inv_vec(<2 x i32> %x, <2 x i32> %y) {
-; CHECK-LABEL: @ashr_lshr_inv_vec(
-; CHECK-NEXT:    [[CMP:%.*]] = icmp slt <2 x i32> [[X:%.*]], <i32 1, i32 1>
-; CHECK-NEXT:    [[L:%.*]] = lshr <2 x i32> [[X]], [[Y:%.*]]
-; CHECK-NEXT:    [[R:%.*]] = ashr <2 x i32> [[X]], [[Y]]
-; CHECK-NEXT:    [[RET:%.*]] = select <2 x i1> [[CMP]], <2 x i32> [[R]], <2 x i32> [[L]]
-; CHECK-NEXT:    ret <2 x i32> [[RET]]
-;
-  %cmp = icmp slt <2 x i32> %x, <i32 1, i32 1>
-  %l = lshr <2 x i32> %x, %y
-  %r = ashr <2 x i32> %x, %y
-  %ret = select <2 x i1> %cmp, <2 x i32> %r, <2 x i32> %l
-  ret <2 x i32> %ret
-}
-
-; Negative tests
-
-define i32 @ashr_lshr_wrong_cst(i32 %x, i32 %y) {
-; CHECK-LABEL: @ashr_lshr_wrong_cst(
-; CHECK-NEXT:    [[CMP:%.*]] = icmp sgt i32 [[X:%.*]], -2
-; CHECK-NEXT:    [[L:%.*]] = lshr i32 [[X]], [[Y:%.*]]
-; CHECK-NEXT:    [[R:%.*]] = ashr exact i32 [[X]], [[Y]]
-; CHECK-NEXT:    [[RET:%.*]] = select i1 [[CMP]], i32 [[L]], i32 [[R]]
-; CHECK-NEXT:    ret i32 [[RET]]
-;
-  %cmp = icmp sgt i32 %x, -2
-  %l = lshr i32 %x, %y
-  %r = ashr exact i32 %x, %y
-  %ret = select i1 %cmp, i32 %l, i32 %r
-  ret i32 %ret
-}
-
-define i32 @ashr_lshr_wrong_cst2(i32 %x, i32 %y) {
-; CHECK-LABEL: @ashr_lshr_wrong_cst2(
-; CHECK-NEXT:    [[CMP:%.*]] = icmp slt i32 [[X:%.*]], -1
-; CHECK-NEXT:    [[L:%.*]] = lshr exact i32 [[X]], [[Y:%.*]]
-; CHECK-NEXT:    [[R:%.*]] = ashr exact i32 [[X]], [[Y]]
-; CHECK-NEXT:    [[RET:%.*]] = select i1 [[CMP]], i32 [[R]], i32 [[L]]
-; CHECK-NEXT:    ret i32 [[RET]]
-;
-  %cmp = icmp slt i32 %x, -1
-  %l = lshr exact i32 %x, %y
-  %r = ashr exact i32 %x, %y
-  %ret = select i1 %cmp, i32 %r, i32 %l
-  ret i32 %ret
-}
-
-define i32 @ashr_lshr_wrong(i32 %x, i32 %y) {
-; CHECK-LABEL: @ashr_lshr_wrong(
-; CHECK-NEXT:    [[CMP:%.*]] = icmp sge i32 [[X:%.*]], -1
-; CHECK-NEXT:    [[L:%.*]] = lshr i32 [[X]], [[Y:%.*]]
-; CHECK-NEXT:    [[R:%.*]] = ashr i32 [[X]], [[Y]]
-; CHECK-NEXT:    [[RET:%.*]] = select i1 [[CMP]], i32 [[L]], i32 [[R]]
-; CHECK-NEXT:    ret i32 [[RET]]
-;
-  %cmp = icmp sge i32 %x, -1
-  %l = lshr i32 %x, %y
-  %r = ashr i32 %x, %y
-  %ret = select i1 %cmp, i32 %l, i32 %r
-  ret i32 %ret
-}
-
-define i32 @ashr_lshr_shift_wrong_pred(i32 %x, i32 %y, i32 %z) {
-; CHECK-LABEL: @ashr_lshr_shift_wrong_pred(
-; CHECK-NEXT:    [[CMP:%.*]] = icmp sle i32 [[X:%.*]], 0
-; CHECK-NEXT:    [[L:%.*]] = lshr i32 [[X]], [[Y:%.*]]
-; CHECK-NEXT:    [[R:%.*]] = ashr i32 [[X]], [[Y]]
-; CHECK-NEXT:    [[RET:%.*]] = select i1 [[CMP]], i32 [[L]], i32 [[R]]
-; CHECK-NEXT:    ret i32 [[RET]]
-;
-  %cmp = icmp sle i32 %x, 0
-  %l = lshr i32 %x, %y
-  %r = ashr i32 %x, %y
-  %ret = select i1 %cmp, i32 %l, i32 %r
-  ret i32 %ret
-}
-
-define i32 @ashr_lshr_shift_wrong_pred2(i32 %x, i32 %y, i32 %z) {
-; CHECK-LABEL: @ashr_lshr_shift_wrong_pred2(
-; CHECK-NEXT:    [[CMP:%.*]] = icmp sge i32 [[Z:%.*]], 0
-; CHECK-NEXT:    [[L:%.*]] = lshr i32 [[X:%.*]], [[Y:%.*]]
-; CHECK-NEXT:    [[R:%.*]] = ashr i32 [[X]], [[Y]]
-; CHECK-NEXT:    [[RET:%.*]] = select i1 [[CMP]], i32 [[L]], i32 [[R]]
-; CHECK-NEXT:    ret i32 [[RET]]
-;
-  %cmp = icmp sge i32 %z, 0
-  %l = lshr i32 %x, %y
-  %r = ashr i32 %x, %y
-  %ret = select i1 %cmp, i32 %l, i32 %r
-  ret i32 %ret
-}
-
-define i32 @ashr_lshr_wrong_operands(i32 %x, i32 %y) {
-; CHECK-LABEL: @ashr_lshr_wrong_operands(
-; CHECK-NEXT:    [[CMP:%.*]] = icmp sge i32 [[X:%.*]], 0
-; CHECK-NEXT:    [[L:%.*]] = lshr i32 [[X]], [[Y:%.*]]
-; CHECK-NEXT:    [[R:%.*]] = ashr i32 [[X]], [[Y]]
-; CHECK-NEXT:    [[RET:%.*]] = select i1 [[CMP]], i32 [[R]], i32 [[L]]
-; CHECK-NEXT:    ret i32 [[RET]]
-;
-  %cmp = icmp sge i32 %x, 0
-  %l = lshr i32 %x, %y
-  %r = ashr i32 %x, %y
-  %ret = select i1 %cmp, i32 %r, i32 %l
-  ret i32 %ret
-}
-
-define i32 @ashr_lshr_no_ashr(i32 %x, i32 %y) {
-; CHECK-LABEL: @ashr_lshr_no_ashr(
-; CHECK-NEXT:    [[CMP:%.*]] = icmp sge i32 [[X:%.*]], 0
-; CHECK-NEXT:    [[L:%.*]] = lshr i32 [[X]], [[Y:%.*]]
-; CHECK-NEXT:    [[R:%.*]] = xor i32 [[X]], [[Y]]
-; CHECK-NEXT:    [[RET:%.*]] = select i1 [[CMP]], i32 [[L]], i32 [[R]]
-; CHECK-NEXT:    ret i32 [[RET]]
-;
-  %cmp = icmp sge i32 %x, 0
-  %l = lshr i32 %x, %y
-  %r = xor i32 %x, %y
-  %ret = select i1 %cmp, i32 %l, i32 %r
-  ret i32 %ret
-}
-
-define i32 @ashr_lshr_shift_amt_mismatch(i32 %x, i32 %y, i32 %z) {
-; CHECK-LABEL: @ashr_lshr_shift_amt_mismatch(
-; CHECK-NEXT:    [[CMP:%.*]] = icmp sge i32 [[X:%.*]], 0
-; CHECK-NEXT:    [[L:%.*]] = lshr i32 [[X]], [[Y:%.*]]
-; CHECK-NEXT:    [[R:%.*]] = ashr i32 [[X]], [[Z:%.*]]
-; CHECK-NEXT:    [[RET:%.*]] = select i1 [[CMP]], i32 [[L]], i32 [[R]]
-; CHECK-NEXT:    ret i32 [[RET]]
-;
-  %cmp = icmp sge i32 %x, 0
-  %l = lshr i32 %x, %y
-  %r = ashr i32 %x, %z
-  %ret = select i1 %cmp, i32 %l, i32 %r
-  ret i32 %ret
-}
-
-define i32 @ashr_lshr_shift_base_mismatch(i32 %x, i32 %y, i32 %z) {
-; CHECK-LABEL: @ashr_lshr_shift_base_mismatch(
-; CHECK-NEXT:    [[CMP:%.*]] = icmp sge i32 [[X:%.*]], 0
-; CHECK-NEXT:    [[L:%.*]] = lshr i32 [[X]], [[Y:%.*]]
-; CHECK-NEXT:    [[R:%.*]] = ashr i32 [[Z:%.*]], [[Y]]
-; CHECK-NEXT:    [[RET:%.*]] = select i1 [[CMP]], i32 [[L]], i32 [[R]]
-; CHECK-NEXT:    ret i32 [[RET]]
-;
-  %cmp = icmp sge i32 %x, 0
-  %l = lshr i32 %x, %y
-  %r = ashr i32 %z, %y
-  %ret = select i1 %cmp, i32 %l, i32 %r
-  ret i32 %ret
-}
-
-define i32 @ashr_lshr_no_lshr(i32 %x, i32 %y) {
-; CHECK-LABEL: @ashr_lshr_no_lshr(
-; CHECK-NEXT:    [[CMP:%.*]] = icmp sge i32 [[X:%.*]], 0
-; CHECK-NEXT:    [[L:%.*]] = add i32 [[X]], [[Y:%.*]]
-; CHECK-NEXT:    [[R:%.*]] = ashr i32 [[X]], [[Y]]
-; CHECK-NEXT:    [[RET:%.*]] = select i1 [[CMP]], i32 [[L]], i32 [[R]]
-; CHECK-NEXT:    ret i32 [[RET]]
-;
-  %cmp = icmp sge i32 %x, 0
-  %l = add i32 %x, %y
-  %r = ashr i32 %x, %y
-  %ret = select i1 %cmp, i32 %l, i32 %r
-  ret i32 %ret
-}
-
-define <2 x i32> @ashr_lshr_vec_wrong_pred(<2 x i32> %x, <2 x i32> %y) {
-; CHECK-LABEL: @ashr_lshr_vec_wrong_pred(
-; CHECK-NEXT:    [[CMP:%.*]] = icmp sle <2 x i32> [[X:%.*]], zeroinitializer
-; CHECK-NEXT:    [[L:%.*]] = lshr <2 x i32> [[X]], [[Y:%.*]]
-; CHECK-NEXT:    [[R:%.*]] = ashr <2 x i32> [[X]], [[Y]]
-; CHECK-NEXT:    [[RET:%.*]] = select <2 x i1> [[CMP]], <2 x i32> [[L]], <2 x i32> [[R]]
-; CHECK-NEXT:    ret <2 x i32> [[RET]]
-;
-  %cmp = icmp sle <2 x i32> %x, zeroinitializer
-  %l = lshr <2 x i32> %x, %y
-  %r = ashr <2 x i32> %x, %y
-  %ret = select <2 x i1> %cmp, <2 x i32> %l, <2 x i32> %r
-  ret <2 x i32> %ret
-}
-
-define <2 x i32> @ashr_lshr_inv_vec_wrong_pred(<2 x i32> %x, <2 x i32> %y) {
-; CHECK-LABEL: @ashr_lshr_inv_vec_wrong_pred(
-; CHECK-NEXT:    [[CMP:%.*]] = icmp sge <2 x i32> [[X:%.*]], zeroinitializer
-; CHECK-NEXT:    [[L:%.*]] = lshr <2 x i32> [[X]], [[Y:%.*]]
-; CHECK-NEXT:    [[R:%.*]] = ashr <2 x i32> [[X]], [[Y]]
-; CHECK-NEXT:    [[RET:%.*]] = select <2 x i1> [[CMP]], <2 x i32> [[R]], <2 x i32> [[L]]
-; CHECK-NEXT:    ret <2 x i32> [[RET]]
-;
-  %cmp = icmp sge <2 x i32> %x, zeroinitializer
-  %l = lshr <2 x i32> %x, %y
-  %r = ashr <2 x i32> %x, %y
-  %ret = select <2 x i1> %cmp, <2 x i32> %r, <2 x i32> %l
-  ret <2 x i32> %ret
-}
-
-define <2 x i32> @ashr_lshr_undef2(<2 x i32> %x, <2 x i32> %y) {
-; CHECK-LABEL: @ashr_lshr_undef2(
-; CHECK-NEXT:    [[CMP:%.*]] = icmp sgt <2 x i32> [[X:%.*]], <i32 undef, i32 -1>
-; CHECK-NEXT:    [[L:%.*]] = lshr <2 x i32> [[X]], [[Y:%.*]]
-; CHECK-NEXT:    [[R:%.*]] = ashr <2 x i32> [[X]], [[Y]]
-; CHECK-NEXT:    [[RET:%.*]] = select <2 x i1> [[CMP]], <2 x i32> [[L]], <2 x i32> [[R]]
-; CHECK-NEXT:    ret <2 x i32> [[RET]]
-;
-  %cmp = icmp sgt <2 x i32> %x, <i32 undef, i32 -1>
-  %l = lshr <2 x i32> %x, %y
-  %r = ashr <2 x i32> %x, %y
-  %ret = select <2 x i1> %cmp, <2 x i32> %l, <2 x i32> %r
-  ret <2 x i32> %ret
-}
-
-define <2 x i32> @ashr_lshr_undef3(<2 x i32> %x, <2 x i32> %y) {
-; CHECK-LABEL: @ashr_lshr_undef3(
-; CHECK-NEXT:    [[CMP:%.*]] = icmp slt <2 x i32> [[X:%.*]], <i32 1, i32 undef>
-; CHECK-NEXT:    [[L:%.*]] = lshr <2 x i32> [[X]], [[Y:%.*]]
-; CHECK-NEXT:    [[R:%.*]] = ashr <2 x i32> [[X]], [[Y]]
-; CHECK-NEXT:    [[RET:%.*]] = select <2 x i1> [[CMP]], <2 x i32> [[R]], <2 x i32> [[L]]
-; CHECK-NEXT:    ret <2 x i32> [[RET]]
-;
-  %cmp = icmp slt <2 x i32> %x, <i32 1, i32 undef>
-  %l = lshr <2 x i32> %x, %y
-  %r = ashr <2 x i32> %x, %y
-  %ret = select <2 x i1> %cmp, <2 x i32> %r, <2 x i32> %l
-  ret <2 x i32> %ret
-}
-
-define i32 @ashr_lshr_exact_ashr_only(i32 %x, i32 %y) {
-; CHECK-LABEL: @ashr_lshr_exact_ashr_only(
-; CHECK-NEXT:    [[CMP:%.*]] = icmp sgt i32 [[X:%.*]], -1
-; CHECK-NEXT:    [[L:%.*]] = lshr i32 [[X]], [[Y:%.*]]
-; CHECK-NEXT:    [[R:%.*]] = ashr exact i32 [[X]], [[Y]]
-; CHECK-NEXT:    [[RET:%.*]] = select i1 [[CMP]], i32 [[L]], i32 [[R]]
-; CHECK-NEXT:    ret i32 [[RET]]
-;
-  %cmp = icmp sgt i32 %x, -1
-  %l = lshr i32 %x, %y
-  %r = ashr exact i32 %x, %y
-  %ret = select i1 %cmp, i32 %l, i32 %r
-  ret i32 %ret
-}
-- 
2.40.0