You've already forked linux-packaging-mono
66 lines
1.8 KiB
LLVM
66 lines
1.8 KiB
LLVM
|
; RUN: opt < %s -basicaa -globals-aa -S -licm | FileCheck %s
|
||
|
|
|
||
|
|
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
|
||
|
|
target triple = "x86_64-apple-macosx10.10.0"
|
||
|
|
|
||
|
|
@b = common global i32 0, align 4
|
||
|
|
@c = internal global i32 0, align 4
|
||
|
|
@d = common global i32 0, align 4
|
||
|
|
@e = common global i32* null, align 4
|
||
|
|
|
||
|
|
define void @foo(i32* %P) noinline {
|
||
|
|
; CHECK: define void @foo
|
||
|
|
%loadp = load i32, i32* %P, align 4
|
||
|
|
store i32 %loadp, i32* @d, align 4
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
define void @bar() noinline {
|
||
|
|
; CHECK: define void @bar
|
||
|
|
%loadp = load i32, i32* @d, align 4
|
||
|
|
store i32 %loadp, i32* @c, align 4
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
define i32 @main() {
|
||
|
|
entry:
|
||
|
|
%retval = alloca i32, align 4
|
||
|
|
%c = alloca [1 x i32], align 4
|
||
|
|
store i32 0, i32* %retval, align 4
|
||
|
|
call void @bar()
|
||
|
|
store i32 0, i32* @b, align 4
|
||
|
|
br label %for.cond
|
||
|
|
;; Check that @c is LICM'ed out.
|
||
|
|
; CHECK: load i32, i32* @c
|
||
|
|
for.cond: ; preds = %for.inc, %entry
|
||
|
|
; CHECK-LABEL: for.cond:
|
||
|
|
; CHECK: load i32, i32* @b
|
||
|
|
%a1 = load i32, i32* @b, align 4
|
||
|
|
%aa2 = load i32, i32* @c, align 4
|
||
|
|
%add = add nsw i32 %a1, %aa2
|
||
|
|
%p1 = load i32*, i32** @e, align 4
|
||
|
|
call void @foo(i32* %p1)
|
||
|
|
%cmp = icmp slt i32 %add, 3
|
||
|
|
br i1 %cmp, label %for.body, label %for.end
|
||
|
|
|
||
|
|
for.body: ; preds = %for.cond
|
||
|
|
%a2 = load i32, i32* @b, align 4
|
||
|
|
%idxprom = sext i32 %a2 to i64
|
||
|
|
br label %for.inc
|
||
|
|
|
||
|
|
for.inc: ; preds = %for.body
|
||
|
|
%a3 = load i32, i32* @b, align 4
|
||
|
|
%inc = add nsw i32 %a3, 1
|
||
|
|
store i32 %inc, i32* @b, align 4
|
||
|
|
br label %for.cond
|
||
|
|
|
||
|
|
for.end: ; preds = %for.cond
|
||
|
|
ret i32 0
|
||
|
|
}
|
||
|
|
|
||
|
|
; Function Attrs: nounwind argmemonly
|
||
|
|
declare void @llvm.memset.p0i8.i64(i8* nocapture, i8, i64, i32, i1) nounwind argmemonly
|
||
|
|
|
||
|
|
; Function Attrs: noreturn nounwind
|
||
|
|
declare void @abort() noreturn nounwind
|