mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-15 04:30:12 +00:00
f2f6ce65b7
input filename so that opt doesn't print the input filename in the output so that grep lines in the tests don't unintentionally match strings in the input filename. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81537 91177308-0d34-0410-b5e6-96231b3b80d8
62 lines
1.8 KiB
LLVM
62 lines
1.8 KiB
LLVM
; ModuleID = 'PR1657.bc'
|
|
; Do not promote getelementptr because it may exposes load from a null pointer
|
|
; and store from a null pointer which are covered by
|
|
; icmp eq %struct.decision* null, null condition.
|
|
; RUN: opt < %s -licm -S | not grep promoted
|
|
%struct.decision = type { i8, %struct.decision* }
|
|
|
|
define i32 @main() {
|
|
entry:
|
|
br label %blah.i
|
|
|
|
blah.i: ; preds = %cond_true.i, %entry
|
|
%tmp3.i = icmp eq %struct.decision* null, null ; <i1> [#uses=1]
|
|
br i1 %tmp3.i, label %clear_modes.exit, label %cond_true.i
|
|
|
|
cond_true.i: ; preds = %blah.i
|
|
%tmp1.i = getelementptr %struct.decision* null, i32 0, i32 0 ; <i8*> [#uses=1]
|
|
store i8 0, i8* %tmp1.i
|
|
br label %blah.i
|
|
|
|
clear_modes.exit: ; preds = %blah.i
|
|
call void @exit( i32 0 )
|
|
unreachable
|
|
}
|
|
|
|
define i32 @f(i8* %ptr) {
|
|
entry:
|
|
br label %loop.head
|
|
|
|
loop.head: ; preds = %cond.true, %entry
|
|
%x = phi i8* [ %ptr, %entry ], [ %ptr.i, %cond.true ] ; <i8*> [#uses=1]
|
|
%tmp3.i = icmp ne i8* %ptr, %x ; <i1> [#uses=1]
|
|
br i1 %tmp3.i, label %cond.true, label %exit
|
|
|
|
cond.true: ; preds = %loop.head
|
|
%ptr.i = getelementptr i8* %ptr, i32 0 ; <i8*> [#uses=2]
|
|
store i8 0, i8* %ptr.i
|
|
br label %loop.head
|
|
|
|
exit: ; preds = %loop.head
|
|
ret i32 0
|
|
}
|
|
|
|
define i32 @f2(i8* %p, i8* %q) {
|
|
entry:
|
|
br label %loop.head
|
|
|
|
loop.head: ; preds = %cond.true, %entry
|
|
%tmp3.i = icmp eq i8* null, %q ; <i1> [#uses=1]
|
|
br i1 %tmp3.i, label %exit, label %cond.true
|
|
|
|
cond.true: ; preds = %loop.head
|
|
%ptr.i = getelementptr i8* %p, i32 0 ; <i8*> [#uses=2]
|
|
store i8 0, i8* %ptr.i
|
|
br label %loop.head
|
|
|
|
exit: ; preds = %loop.head
|
|
ret i32 0
|
|
}
|
|
|
|
declare void @exit(i32)
|