mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-25 12:12:47 +01:00
a62270de2c
The reversion apparently deleted the test/Transforms directory. Will be re-reverting again. llvm-svn: 358552
46 lines
1.3 KiB
LLVM
46 lines
1.3 KiB
LLVM
; These tests have an infinite trip count. We obviously shouldn't remove the
|
|
; loops! :)
|
|
;
|
|
; RUN: opt < %s -indvars -adce -simplifycfg -S | FileCheck %s
|
|
|
|
;; test for (i = 1; i != 100; i += 2)
|
|
define i32 @infinite_linear() {
|
|
; CHECK-LABEL: @infinite_linear(
|
|
entry:
|
|
br label %loop
|
|
|
|
loop: ; preds = %loop, %entry
|
|
; CHECK-LABEL: loop:
|
|
%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]
|
|
; CHECK: icmp
|
|
; CHECK: br
|
|
br i1 %c, label %loop, label %loopexit
|
|
|
|
loopexit: ; preds = %loop
|
|
; CHECK-LABEL: loopexit:
|
|
ret i32 %i
|
|
}
|
|
|
|
;; test for (i = 1; i*i != 63; ++i)
|
|
define i32 @infinite_quadratic() {
|
|
; CHECK-LABEL: @infinite_quadratic(
|
|
entry:
|
|
br label %loop
|
|
|
|
loop: ; preds = %loop, %entry
|
|
; CHECK-LABEL: loop:
|
|
%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]
|
|
; CHECK: icmp
|
|
; CHECK: br
|
|
br i1 %c, label %loop, label %loopexit
|
|
|
|
loopexit: ; preds = %loop
|
|
; CHECK-LABEL: loopexit:
|
|
ret i32 %i
|
|
}
|