Revert rL326898: "Teach CorrelatedValuePropagation to reduce the width of udiv/urem instructions."

Breaks bootstrap builds: clang built with this patch asserts while
building MCDwarf.cpp: Assertion `castIsValid(op, S, Ty) && "Invalid
cast!"' failed.

llvm-svn: 326900

2 files changed, 0 insertions, 190 deletions

diff --git a/llvm/test/Transforms/CorrelatedValuePropagation/udiv.ll b/llvm/test/Transforms/CorrelatedValuePropagation/udiv.ll
deleted file mode 100644
index 19078134e6f..00000000000
--- a/llvm/test/Transforms/CorrelatedValuePropagation/udiv.ll
+++ /dev/null
@@ -1,95 +0,0 @@
-; RUN: opt < %s -correlated-propagation -S | FileCheck %s
-
-; CHECK-LABEL: @test_nop
-define void @test_nop(i32 %n) {
-; CHECK udiv i32 %n, 100
-  %div = udiv i32 %n, 100
-  ret void
-}
-
-; CHECK-LABEL: @test1(
-define void @test1(i32 %n) {
-entry:
-  %cmp = icmp ule i32 %n, 65535
-  br i1 %cmp, label %bb, label %exit
-
-bb:
-; CHECK: udiv i16
-  %div = udiv i32 %n, 100
-  br label %exit
-
-exit:
-  ret void
-}
-
-; CHECK-LABEL: @test2(
-define void @test2(i32 %n) {
-entry:
-  %cmp = icmp ule i32 %n, 65536
-  br i1 %cmp, label %bb, label %exit
-
-bb:
-; CHECK: udiv i32 %n, 100
-  %div = udiv i32 %n, 100
-  br label %exit
-
-exit:
-  ret void
-}
-
-; CHECK-LABEL: @test3(
-define void @test3(i32 %m, i32 %n) {
-entry:
-  %cmp1 = icmp ult i32 %m, 65535
-  %cmp2 = icmp ult i32 %n, 65535
-  %cmp = and i1 %cmp1, %cmp2
-  br i1 %cmp, label %bb, label %exit
-
-bb:
-; CHECK: udiv i16
-  %div = udiv i32 %m, %n
-  br label %exit
-
-exit:
-  ret void
-}
-
-; CHECK-LABEL: @test4(
-define void @test4(i32 %m, i32 %n) {
-entry:
-  %cmp1 = icmp ult i32 %m, 65535
-  %cmp2 = icmp ule i32 %n, 65536
-  %cmp = and i1 %cmp1, %cmp2
-  br i1 %cmp, label %bb, label %exit
-
-bb:
-; CHECK: udiv i32 %m, %n
-  %div = udiv i32 %m, %n
-  br label %exit
-
-exit:
-  ret void
-}
-
-; CHECK-LABEL: @test5
-define void @test5(i32 %n) {
-  %trunc = and i32 %n, 65535
-  ; CHECK: udiv i16
-  %div = udiv i32 %trunc, 42
-  ret void
-}
-
-; CHECK-LABEL: @test6
-define void @test6(i32 %n) {
-entry:
-  %cmp = icmp ule i32 %n, 255
-  br i1 %cmp, label %bb, label %exit
-
-bb:
-; CHECK: udiv i8
-  %div = sdiv i32 %n, 100
-  br label %exit
-
-exit:
-  ret void
-}
diff --git a/llvm/test/Transforms/CorrelatedValuePropagation/urem.ll b/llvm/test/Transforms/CorrelatedValuePropagation/urem.ll
deleted file mode 100644
index e0dd5182d95..00000000000
--- a/llvm/test/Transforms/CorrelatedValuePropagation/urem.ll
+++ /dev/null
@@ -1,95 +0,0 @@
-; RUN: opt < %s -correlated-propagation -S | FileCheck %s
-
-; CHECK-LABEL: @test_nop
-define void @test_nop(i32 %n) {
-; CHECK udiv i32 %n, 100
-  %div = udiv i32 %n, 100
-  ret void
-}
-
-; CHECK-LABEL: @test1(
-define void @test1(i32 %n) {
-entry:
-  %cmp = icmp ule i32 %n, 65535
-  br i1 %cmp, label %bb, label %exit
-
-bb:
-; CHECK: urem i16
-  %div = urem i32 %n, 100
-  br label %exit
-
-exit:
-  ret void
-}
-
-; CHECK-LABEL: @test2(
-define void @test2(i32 %n) {
-entry:
-  %cmp = icmp ule i32 %n, 65536
-  br i1 %cmp, label %bb, label %exit
-
-bb:
-; CHECK: urem i32 %n, 100
-  %div = urem i32 %n, 100
-  br label %exit
-
-exit:
-  ret void
-}
-
-; CHECK-LABEL: @test3(
-define void @test3(i32 %m, i32 %n) {
-entry:
-  %cmp1 = icmp ult i32 %m, 65535
-  %cmp2 = icmp ult i32 %n, 65535
-  %cmp = and i1 %cmp1, %cmp2
-  br i1 %cmp, label %bb, label %exit
-
-bb:
-; CHECK: urem i16
-  %div = urem i32 %m, %n
-  br label %exit
-
-exit:
-  ret void
-}
-
-; CHECK-LABEL: @test4(
-define void @test4(i32 %m, i32 %n) {
-entry:
-  %cmp1 = icmp ult i32 %m, 65535
-  %cmp2 = icmp ule i32 %n, 65536
-  %cmp = and i1 %cmp1, %cmp2
-  br i1 %cmp, label %bb, label %exit
-
-bb:
-; CHECK: urem i32 %m, %n
-  %div = urem i32 %m, %n
-  br label %exit
-
-exit:
-  ret void
-}
-
-; CHECK-LABEL: @test5
-define void @test5(i32 %n) {
-  %trunc = and i32 %n, 63
-  ; CHECK: urem i8
-  %div = urem i32 %trunc, 42
-  ret void
-}
-
-; CHECK-LABEL: @test6
-define void @test6(i32 %n) {
-entry:
-  %cmp = icmp ule i32 %n, 255
-  br i1 %cmp, label %bb, label %exit
-
-bb:
-; CHECK: urem i8
-  %div = srem i32 %n, 100
-  br label %exit
-
-exit:
-  ret void
-}