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llvm-mirror/test/Transforms/Inline/dynamic_alloca_test.ll
Dan Gohman 205b641954 Change tests from "opt %s" to "opt < %s" so that opt doesn't see the
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.

llvm-svn: 81537
2009-09-11 18:01:28 +00:00

36 lines
1.0 KiB
LLVM

; Test that functions with dynamic allocas get inlined in a case where
; naively inlining it would result in a miscompilation.
; 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
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
}
define void @foo(i32 %N) {
; <label>:0
%P = alloca i32, i32 %N ; <i32*> [#uses=1]
call void @ext( i32* %P )
br label %Loop
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
out: ; preds = %Loop
ret void
}