Revert r237539: "Reapply r237520 with another fix for infinite looping"

This caused PR23583.

llvm-svn: 237739

1 files changed, 0 insertions, 99 deletions

diff --git a/llvm/test/Transforms/InstCombine/minmax-fold.ll b/llvm/test/Transforms/InstCombine/minmax-fold.ll
deleted file mode 100644
index 537251109d9..00000000000
--- a/llvm/test/Transforms/InstCombine/minmax-fold.ll
+++ /dev/null
@@ -1,99 +0,0 @@
-; RUN: opt -S -instcombine < %s | FileCheck %s
-
-; CHECK-LABEL: @t1
-; CHECK-NEXT: icmp
-; CHECK-NEXT: select
-; CHECK-NEXT: sext
-define i64 @t1(i32 %a) {
-  ; This is the canonical form for a type-changing min/max.
-  %1 = icmp slt i32 %a, 5
-  %2 = select i1 %1, i32 %a, i32 5
-  %3 = sext i32 %2 to i64
-  ret i64 %3
-}
-
-; CHECK-LABEL: @t2
-; CHECK-NEXT: icmp
-; CHECK-NEXT: select
-; CHECK-NEXT: sext
-define i64 @t2(i32 %a) {
-  ; Check this is converted into canonical form, as above.
-  %1 = icmp slt i32 %a, 5
-  %2 = sext i32 %a to i64
-  %3 = select i1 %1, i64 %2, i64 5
-  ret i64 %3
-}
-
-; CHECK-LABEL: @t3
-; CHECK-NEXT: icmp
-; CHECK-NEXT: select
-; CHECK-NEXT: zext
-define i64 @t3(i32 %a) {
-  ; Same as @t2, with flipped operands and zext instead of sext.
-  %1 = icmp ult i32 %a, 5
-  %2 = zext i32 %a to i64
-  %3 = select i1 %1, i64 5, i64 %2
-  ret i64 %3
-}
-
-; CHECK-LABEL: @t4
-; CHECK-NEXT: icmp
-; CHECK-NEXT: select
-; CHECK-NEXT: trunc
-define i32 @t4(i64 %a) {
-  ; Same again, with trunc.
-  %1 = icmp slt i64 %a, 5
-  %2 = trunc i64 %a to i32
-  %3 = select i1 %1, i32 %2, i32 5
-  ret i32 %3
-}
-
-; CHECK-LABEL: @t5
-; CHECK-NEXT: icmp
-; CHECK-NEXT: zext
-; CHECK-NEXT: select
-define i64 @t5(i32 %a) {
-  ; Same as @t3, but with mismatched signedness between icmp and zext.
-  ; InstCombine should leave this alone.
-  %1 = icmp slt i32 %a, 5
-  %2 = zext i32 %a to i64
-  %3 = select i1 %1, i64 5, i64 %2
-  ret i64 %3
-}
-
-; CHECK-LABEL: @t6
-; CHECK-NEXT: icmp
-; CHECK-NEXT: select
-; CHECK-NEXT: sitofp
-define float @t6(i32 %a) {
-  %1 = icmp slt i32 %a, 0
-  %2 = select i1 %1, i32 %a, i32 0
-  %3 = sitofp i32 %2 to float
-  ret float %3
-}
-
-; CHECK-LABEL: @t7
-; CHECK-NEXT: icmp
-; CHECK-NEXT: select
-; CHECK-NEXT: trunc
-define i16 @t7(i32 %a) {
-  %1 = icmp slt i32 %a, -32768
-  %2 = trunc i32 %a to i16
-  %3 = select i1 %1, i16 %2, i16 -32768
-  ret i16 %3
-}
-
-; Just check for no infinite loop. InstSimplify liked to
-; "simplify" -32767 by removing all the sign bits,
-; which led to a canonicalization fight between different
-; parts of instcombine.
-define i32 @t8(i64 %a, i32 %b) {
-  %1 = icmp slt i64 %a, -32767
-  %2 = select i1 %1, i64 %a, i64 -32767
-  %3 = trunc i64 %2 to i32
-  %4 = icmp slt i32 %b, 42
-  %5 = select i1 %4, i32 42, i32 %3
-  %6 = icmp ne i32 %5, %b
-  %7 = zext i1 %6 to i32
-  ret i32 %7
-}