mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-10-31 08:16:47 +00:00
572645cf84
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
22 lines
627 B
LLVM
22 lines
627 B
LLVM
; Check that this test makes INDVAR and related stuff dead.
|
|
; RUN: opt < %s -loop-reduce -S | not grep INDVAR
|
|
|
|
declare i1 @pred()
|
|
|
|
define void @test(i32* %P) {
|
|
; <label>:0
|
|
br label %Loop
|
|
Loop: ; preds = %Loop, %0
|
|
%i = phi i32 [ 0, %0 ], [ %i.next, %Loop ]
|
|
%INDVAR = phi i32 [ 0, %0 ], [ %INDVAR2, %Loop ] ; <i32> [#uses=2]
|
|
%STRRED = getelementptr i32* %P, i32 %INDVAR ; <i32*> [#uses=1]
|
|
store i32 0, i32* %STRRED
|
|
%INDVAR2 = add i32 %INDVAR, 1 ; <i32> [#uses=1]
|
|
%i.next = add i32 %i, 1
|
|
%cond = call i1 @pred( ) ; <i1> [#uses=1]
|
|
br i1 %cond, label %Loop, label %Out
|
|
Out: ; preds = %Loop
|
|
ret void
|
|
}
|
|
|