Reapply the new LoopStrengthReduction code, with compile time and
bug fixes, and with improved heuristics for analyzing foreign-loop
addrecs.
This change also flattens IVUsers, eliminating the stride-oriented
groupings, which makes it easier to work with.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95975 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/X86/loop-strength-reduce-2.ll b/test/CodeGen/X86/loop-strength-reduce-2.ll
index 30b5114..b546462 100644
--- a/test/CodeGen/X86/loop-strength-reduce-2.ll
+++ b/test/CodeGen/X86/loop-strength-reduce-2.ll
@@ -1,11 +1,24 @@
-; RUN: llc < %s -march=x86 -relocation-model=pic | \
-; RUN: grep {, 4} | count 1
-; RUN: llc < %s -march=x86 | not grep lea
+; RUN: llc < %s -march=x86 -relocation-model=pic | FileCheck %s -check-prefix=PIC
+; RUN: llc < %s -march=x86 -relocation-model=static | FileCheck %s -check-prefix=STATIC
;
; Make sure the common loop invariant A is hoisted up to preheader,
; since too many registers are needed to subsume it into the addressing modes.
; It's safe to sink A in when it's not pic.
+; PIC: align
+; PIC: movl $4, -4([[REG:%e[a-z]+]])
+; PIC: movl $5, ([[REG]])
+; PIC: addl $4, [[REG]]
+; PIC: decl {{%e[[a-z]+}}
+; PIC: jne
+
+; STATIC: align
+; STATIC: movl $4, -4(%ecx)
+; STATIC: movl $5, (%ecx)
+; STATIC: addl $4, %ecx
+; STATIC: decl %eax
+; STATIC: jne
+
@A = global [16 x [16 x i32]] zeroinitializer, align 32 ; <[16 x [16 x i32]]*> [#uses=2]
define void @test(i32 %row, i32 %N.in) nounwind {