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FileCheck-ize this test, and generally tidy it up prior to changing

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things around.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153799 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chandler Carruth 2012-03-31 09:22:33 +00:00
parent 4000afe712
commit c3e955927f
1 changed files with 24 additions and 19 deletions
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43
test/Transforms/Inline/dynamic_alloca_test.ll
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@ -3,33 +3,38 @@
; Functions with dynamic allocas can only be inlined into functions that
; already have dynamic allocas.
; RUN: opt < %s -inline -S | \
; RUN: grep llvm.stacksave
; RUN: opt < %s -inline -S | not grep callee
; RUN: opt < %s -inline -S | FileCheck %s
declare void @ext(i32*)
define internal void @callee(i32 %N) {
%P = alloca i32, i32 %N ; <i32*> [#uses=1]
call void @ext( i32* %P )
ret void
%P = alloca i32, i32 %N
call void @ext(i32* %P)
ret void
}
define void @foo(i32 %N) {
; <label>:0
%P = alloca i32, i32 %N ; <i32*> [#uses=1]
call void @ext( i32* %P )
br label %Loop
; CHECK: @foo
; CHECK: alloca i32, i32 %{{.*}}
; CHECK: call i8* @llvm.stacksave()
; CHECK: alloca i32, i32 %{{.*}}
; CHECK: call void @ext
; CHECK: call void @llvm.stackrestore
; CHECK: ret
Loop: ; preds = %Loop, %0
%count = phi i32 [ 0, %0 ], [ %next, %Loop ] ; <i32> [#uses=2]
%next = add i32 %count, 1 ; <i32> [#uses=1]
call void @callee( i32 %N )
%cond = icmp eq i32 %count, 100000 ; <i1> [#uses=1]
br i1 %cond, label %out, label %Loop
entry:
%P = alloca i32, i32 %N
call void @ext(i32* %P)
br label %loop
out: ; preds = %Loop
ret void
loop:
%count = phi i32 [ 0, %entry ], [ %next, %loop ]
%next = add i32 %count, 1
call void @callee(i32 %N)
%cond = icmp eq i32 %count, 100000
br i1 %cond, label %out, label %loop
out:
ret void
}