mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-24 22:32:47 +00:00
3e054fe9ef
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81257 91177308-0d34-0410-b5e6-96231b3b80d8
39 lines
1.1 KiB
LLVM
39 lines
1.1 KiB
LLVM
; RUN: opt %s -indvars -S > %t
|
|
; RUN: grep {%exitcond = icmp eq i64 %indvar.next, %n} %t
|
|
; RUN: grep {getelementptr i8\\* %A, i64 %indvar} %t
|
|
; RUN: grep getelementptr %t | count 1
|
|
; RUN: grep add %t | count 1
|
|
; RUN: not grep scevgep %t
|
|
; RUN: not grep ptrtoint %t
|
|
|
|
; Indvars should be able to expand the pointer-arithmetic
|
|
; IV into an integer IV indexing into a simple getelementptr.
|
|
|
|
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64"
|
|
|
|
define void @foo(i8* %A, i64 %n) nounwind {
|
|
entry:
|
|
%0 = icmp eq i64 %n, 0 ; <i1> [#uses=1]
|
|
br i1 %0, label %return, label %bb.nph
|
|
|
|
bb.nph: ; preds = %entry
|
|
%1 = getelementptr i8* %A, i64 %n ; <i8*> [#uses=1]
|
|
br label %bb
|
|
|
|
bb: ; preds = %bb1, %bb.nph
|
|
%q.01 = phi i8* [ %2, %bb1 ], [ %A, %bb.nph ] ; <i8*> [#uses=2]
|
|
store i8 0, i8* %q.01, align 1
|
|
%2 = getelementptr i8* %q.01, i64 1 ; <i8*> [#uses=2]
|
|
br label %bb1
|
|
|
|
bb1: ; preds = %bb
|
|
%3 = icmp eq i8* %1, %2 ; <i1> [#uses=1]
|
|
br i1 %3, label %bb1.return_crit_edge, label %bb
|
|
|
|
bb1.return_crit_edge: ; preds = %bb1
|
|
br label %return
|
|
|
|
return: ; preds = %bb1.return_crit_edge, %entry
|
|
ret void
|
|
}
|