mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-11-19 01:13:25 +00:00
74786c0f43
the name used in the code that these tests are for. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64624 91177308-0d34-0410-b5e6-96231b3b80d8
39 lines
1.2 KiB
LLVM
39 lines
1.2 KiB
LLVM
; These tests have an infinite trip count. We obviously shouldn't remove the
|
|
; loops! :)
|
|
;
|
|
; RUN: llvm-as < %s | opt -indvars -adce -simplifycfg | llvm-dis | grep icmp | wc -l > %t2
|
|
; RUN: llvm-as < %s | llvm-dis | grep icmp | wc -l > %t1
|
|
; RUN: diff %t1 %t2
|
|
|
|
;; test for (i = 1; i != 100; i += 2)
|
|
define i32 @infinite_linear() {
|
|
entry:
|
|
br label %loop
|
|
|
|
loop: ; preds = %loop, %entry
|
|
%i = phi i32 [ 1, %entry ], [ %i.next, %loop ] ; <i32> [#uses=3]
|
|
%i.next = add i32 %i, 2 ; <i32> [#uses=1]
|
|
%c = icmp ne i32 %i, 100 ; <i1> [#uses=1]
|
|
br i1 %c, label %loop, label %loopexit
|
|
|
|
loopexit: ; preds = %loop
|
|
ret i32 %i
|
|
}
|
|
|
|
;; test for (i = 1; i*i != 63; ++i)
|
|
define i32 @infinite_quadratic() {
|
|
entry:
|
|
br label %loop
|
|
|
|
loop: ; preds = %loop, %entry
|
|
%i = phi i32 [ 1, %entry ], [ %i.next, %loop ] ; <i32> [#uses=4]
|
|
%isquare = mul i32 %i, %i ; <i32> [#uses=1]
|
|
%i.next = add i32 %i, 1 ; <i32> [#uses=1]
|
|
%c = icmp ne i32 %isquare, 63 ; <i1> [#uses=1]
|
|
br i1 %c, label %loop, label %loopexit
|
|
|
|
loopexit: ; preds = %loop
|
|
ret i32 %i
|
|
}
|
|
|