mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-11-13 21:05:16 +00:00
ec9a35a6f9
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47793 91177308-0d34-0410-b5e6-96231b3b80d8
30 lines
981 B
LLVM
30 lines
981 B
LLVM
; The i induction variable looks like a wrap-around, but it really is just
|
|
; a simple affine IV. Make sure that indvars eliminates it.
|
|
|
|
; RUN: llvm-as < %s | opt -indvars | llvm-dis | grep phi | count 1
|
|
|
|
define void @foo() {
|
|
entry:
|
|
br label %bb6
|
|
|
|
bb6: ; preds = %cond_true, %entry
|
|
%j.0 = phi i32 [ 1, %entry ], [ %tmp5, %cond_true ] ; <i32> [#uses=3]
|
|
%i.0 = phi i32 [ 0, %entry ], [ %j.0, %cond_true ] ; <i32> [#uses=1]
|
|
%tmp7 = call i32 (...)* @foo2( ) ; <i32> [#uses=1]
|
|
%tmp = icmp ne i32 %tmp7, 0 ; <i1> [#uses=1]
|
|
br i1 %tmp, label %cond_true, label %return
|
|
|
|
cond_true: ; preds = %bb6
|
|
%tmp2 = call i32 (...)* @bar( i32 %i.0, i32 %j.0 ) ; <i32> [#uses=0]
|
|
%tmp5 = add i32 %j.0, 1 ; <i32> [#uses=1]
|
|
br label %bb6
|
|
|
|
return: ; preds = %bb6
|
|
ret void
|
|
}
|
|
|
|
declare i32 @bar(...)
|
|
|
|
declare i32 @foo2(...)
|
|
|