Reverse a loop that is counting up to a maximum to
count down to 0 instead, under very restricted
circumstances. Adjust 4 testcases in which this
optimization fires.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71439 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/X86/iv-users-in-other-loops.ll b/test/CodeGen/X86/iv-users-in-other-loops.ll
index 67d9d49..d11b025 100644
--- a/test/CodeGen/X86/iv-users-in-other-loops.ll
+++ b/test/CodeGen/X86/iv-users-in-other-loops.ll
@@ -1,5 +1,6 @@
; RUN: llvm-as < %s | llc -march=x86-64 -f -o %t
-; RUN: grep inc %t | count 2
+; RUN: grep inc %t | count 1
+; RUN: grep dec %t | count 2
; RUN: grep addq %t | count 13
; RUN: grep leaq %t | count 8
; RUN: grep leal %t | count 4
@@ -8,6 +9,7 @@
; IV users in each of the loops from other loops shouldn't cause LSR
; to insert new induction variables. Previously it would create a
; flood of new induction variables.
+; Also, the loop reversal should kick in once.
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128"
target triple = "x86_64-unknown-linux-gnu"