[llvm-commits] CVS: llvm/test/Regression/Transforms/TailCallElim/dont-tce-tail-marked-call.ll move_alloca_for_tail_call.ll

[Chris Lattner]

Changes in directory llvm/test/Regression/Transforms/TailCallElim:

dont-tce-tail-marked-call.ll added (r1.1)
move_alloca_for_tail_call.ll added (r1.1)
---
Log message:

New testcases for PR615: http://llvm.cs.uiuc.edu/PR615 


---
Diffs of the changes:  (+22 -0)

 dont-tce-tail-marked-call.ll |   11 +++++++++++
 move_alloca_for_tail_call.ll |   11 +++++++++++
 2 files changed, 22 insertions(+)


Index: llvm/test/Regression/Transforms/TailCallElim/dont-tce-tail-marked-call.ll
diff -c /dev/null llvm/test/Regression/Transforms/TailCallElim/dont-tce-tail-marked-call.ll:1.1
*** /dev/null	Sat Aug  6 23:25:49 2005
--- llvm/test/Regression/Transforms/TailCallElim/dont-tce-tail-marked-call.ll	Sat Aug  6 23:25:39 2005
***************
*** 0 ****
--- 1,11 ----
+ ; RUN: llvm-as < %s | opt -tailcallelim | llvm-dis | grep 'call int %foo'
+ 
+ declare void %bar(int*)
+ int %foo(uint %N) {
+   %A = alloca int, uint %N             ;; Should stay in entry block because of 'tail' marker
+   store int 17, int* %A
+   call void %bar(int* %A)
+ 
+   %X = tail call int %foo(uint %N)  ;; Cannot -tailcallelim this without increasing stack usage!
+   ret int %X
+ }


Index: llvm/test/Regression/Transforms/TailCallElim/move_alloca_for_tail_call.ll
diff -c /dev/null llvm/test/Regression/Transforms/TailCallElim/move_alloca_for_tail_call.ll:1.1
*** /dev/null	Sat Aug  6 23:25:50 2005
--- llvm/test/Regression/Transforms/TailCallElim/move_alloca_for_tail_call.ll	Sat Aug  6 23:25:39 2005
***************
*** 0 ****
--- 1,11 ----
+ ; RUN: llvm-as < %s | opt -tailcallelim | llvm-dis | %prcontext alloca 1 | grep 'int %foo'
+ 
+ declare void %bar(int*)
+ int %foo() {
+   %A = alloca int             ;; Should stay in entry block because of 'tail' marker
+   store int 17, int* %A
+   call void %bar(int* %A)
+ 
+   %X = tail call int %foo()
+   ret int %X
+ }