[SimplifyCFG] move tests for PR31028 from CGP

Hopefully, this will make sense with a forthcoming patch. If not, we can move these back.

llvm-svn: 297660

1 files changed, 0 insertions, 122 deletions

diff --git a/llvm/test/Transforms/CodeGenPrepare/X86/div-rem-pairs.ll b/llvm/test/Transforms/CodeGenPrepare/X86/div-rem-pairs.ll
deleted file mode 100644
index 697583d21ce..00000000000
--- a/llvm/test/Transforms/CodeGenPrepare/X86/div-rem-pairs.ll
+++ /dev/null
@@ -1,122 +0,0 @@
-; RUN: opt -S -codegenprepare < %s | FileCheck %s
-
-target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
-target triple = "x86_64-unknown-unknown"
-
-; FIXME: Hoist the sdiv because it's free for a target that has DIVREM instructions.
-; PR31028 - https://bugs.llvm.org/show_bug.cgi?id=31028
-
-define i32 @hoist_sdiv(i32 %a, i32 %b) {
-; CHECK-LABEL: @hoist_sdiv(
-; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[REM:%.*]] = srem i32 %a, %b
-; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i32 [[REM]], 42
-; CHECK-NEXT:    br i1 [[CMP]], label %if, label %end
-; CHECK:       if:
-; CHECK-NEXT:    [[DIV:%.*]] = sdiv i32 %a, %b
-; CHECK-NEXT:    br label %end
-; CHECK:       end:
-; CHECK-NEXT:    [[RET:%.*]] = phi i32 [ [[DIV]], %if ], [ 3, %entry ]
-; CHECK-NEXT:    ret i32 [[RET]]
-;
-entry:
-  %rem = srem i32 %a, %b
-  %cmp = icmp eq i32 %rem, 42
-  br i1 %cmp, label %if, label %end
-
-if:
-  %div = sdiv i32 %a, %b
-  br label %end
-
-end:
-  %ret = phi i32 [ %div, %if ], [ 3, %entry ]
-  ret i32 %ret
-}
-
-; FIXME: Hoist the udiv because it's free for a target that has DIVREM instructions.
-
-define i64 @hoist_udiv(i64 %a, i64 %b) {
-; CHECK-LABEL: @hoist_udiv(
-; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[REM:%.*]] = urem i64 %a, %b
-; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i64 [[REM]], 42
-; CHECK-NEXT:    br i1 [[CMP]], label %if, label %end
-; CHECK:       if:
-; CHECK-NEXT:    [[DIV:%.*]] = udiv i64 %a, %b
-; CHECK-NEXT:    br label %end
-; CHECK:       end:
-; CHECK-NEXT:    [[RET:%.*]] = phi i64 [ [[DIV]], %if ], [ 3, %entry ]
-; CHECK-NEXT:    ret i64 [[RET]]
-;
-entry:
-  %rem = urem i64 %a, %b
-  %cmp = icmp eq i64 %rem, 42
-  br i1 %cmp, label %if, label %end
-
-if:
-  %div = udiv i64 %a, %b
-  br label %end
-
-end:
-  %ret = phi i64 [ %div, %if ], [ 3, %entry ]
-  ret i64 %ret
-}
-
-; FIXME: Hoist the srem because it's free for a target that has DIVREM instructions.
-
-define i16 @hoist_srem(i16 %a, i16 %b) {
-; CHECK-LABEL: @hoist_srem(
-; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[DIV:%.*]] = sdiv i16 %a, %b
-; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i16 [[DIV]], 42
-; CHECK-NEXT:    br i1 [[CMP]], label %if, label %end
-; CHECK:       if:
-; CHECK-NEXT:    [[REM:%.*]] = srem i16 %a, %b
-; CHECK-NEXT:    br label %end
-; CHECK:       end:
-; CHECK-NEXT:    [[RET:%.*]] = phi i16 [ [[REM]], %if ], [ 3, %entry ]
-; CHECK-NEXT:    ret i16 [[RET]]
-;
-entry:
-  %div = sdiv i16 %a, %b
-  %cmp = icmp eq i16 %div, 42
-  br i1 %cmp, label %if, label %end
-
-if:
-  %rem = srem i16 %a, %b
-  br label %end
-
-end:
-  %ret = phi i16 [ %rem, %if ], [ 3, %entry ]
-  ret i16 %ret
-}
-
-; FIXME: Hoist the urem because it's free for a target that has DIVREM instructions.
-
-define i8 @hoist_urem(i8 %a, i8 %b) {
-; CHECK-LABEL: @hoist_urem(
-; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[DIV:%.*]] = udiv i8 %a, %b
-; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i8 [[DIV]], 42
-; CHECK-NEXT:    br i1 [[CMP]], label %if, label %end
-; CHECK:       if:
-; CHECK-NEXT:    [[REM:%.*]] = urem i8 %a, %b
-; CHECK-NEXT:    br label %end
-; CHECK:       end:
-; CHECK-NEXT:    [[RET:%.*]] = phi i8 [ [[REM]], %if ], [ 3, %entry ]
-; CHECK-NEXT:    ret i8 [[RET]]
-;
-entry:
-  %div = udiv i8 %a, %b
-  %cmp = icmp eq i8 %div, 42
-  br i1 %cmp, label %if, label %end
-
-if:
-  %rem = urem i8 %a, %b
-  br label %end
-
-end:
-  %ret = phi i8 [ %rem, %if ], [ 3, %entry ]
-  ret i8 %ret
-}
-