Revert "[ValueTracking] Understand more select patterns in ComputeKnownBits"

This reverts commit r257769. Backing this out because of stage2 failures.

llvm-svn: 257773

1 files changed, 0 insertions, 62 deletions

diff --git a/llvm/test/Analysis/ValueTracking/select-maxbits.ll b/llvm/test/Analysis/ValueTracking/select-maxbits.ll
deleted file mode 100644
index 4b121745048..00000000000
--- a/llvm/test/Analysis/ValueTracking/select-maxbits.ll
+++ /dev/null
@@ -1,62 +0,0 @@
-; RUN: opt -S -instsimplify < %s | FileCheck %s
-
-; CHECK-LABEL: @one
-define i32 @one(i32 %a) {
-; CHECK: ret i32 0
-  %b = icmp ugt i32 %a, 5
-  %c = select i1 %b, i32 2, i32 %a
-  %d = lshr i32 %c, 24
-  ret i32 %d
-}
-
-; CHECK-LABEL: @two
-define i32 @two(i32 %a) {
-; CHECK: ret i32 0
-  %x = add nsw i32 %a, 4
-  %b = icmp ugt i32 %x, 5
-  %c = select i1 %b, i32 2, i32 %a
-  %d = lshr i32 %c, 24
-  ret i32 %d
-}
-
-; CHECK-LABEL: @two_no_nsw
-define i32 @two_no_nsw(i32 %a) {
-; CHECK: ret i32 %d
-  %x = add i32 %a, 4
-  %b = icmp ugt i32 %x, 5
-  %c = select i1 %b, i32 2, i32 %a
-  %d = lshr i32 %c, 24
-  ret i32 %d
-}
-
-; CHECK-LABEL: @three
-define i32 @three(i32 %a) {
-; CHECK: ret i32 0
-  %x = add nsw i32 %a, -4
-  %b = icmp ugt i32 %a, 5
-  %c = select i1 %b, i32 2, i32 %x
-  %d = lshr i32 %c, 24
-  ret i32 %d
-}
-
-; CHECK-LABEL: @four
-define i32 @four(i32 %a) {
-; CHECK: ret i32 0
-  %x = add nsw i32 %a, 42
-  %y = add nsw i32 %a, 64
-  %b = icmp ugt i32 %y, 5
-  %c = select i1 %b, i32 2, i32 %x
-  %d = lshr i32 %c, 24
-  ret i32 %d
-}
-
-; CHECK-LABEL: @four_swapped
-define i32 @four_swapped(i32 %a) {
-; CHECK: ret i32 %d
-  %x = add nsw i32 %a, 42
-  %y = add nsw i32 %a, 64
-  %b = icmp ugt i32 %x, 5
-  %c = select i1 %b, i32 2, i32 %y
-  %d = lshr i32 %c, 24
-  ret i32 %d
-}
\ No newline at end of file