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llvm-mirror/test/ExecutionEngine/2005-12-02-TailCallBug.ll
Preston Gurd 6e9bcca355 This patch improves the MCJIT runtime dynamic loader by adding new handling
of zero-initialized sections, virtual sections and common symbols
and preventing the loading of sections which are not required for
execution such as debug information.

Patch by Andy Kaylor!

llvm-svn: 154610
2012-04-12 20:13:57 +00:00

23 lines
681 B
LLVM

; PR672
; RUN: %lli %s
; XFAIL: arm
define i32 @main() {
%f = bitcast i32 (i32, i32*, i32)* @check_tail to i32* ; <i32*> [#uses=1]
%res = tail call fastcc i32 @check_tail( i32 10, i32* %f, i32 10 ) ; <i32> [#uses=1]
ret i32 %res
}
define fastcc i32 @check_tail(i32 %x, i32* %f, i32 %g) {
%tmp1 = icmp sgt i32 %x, 0 ; <i1> [#uses=1]
br i1 %tmp1, label %if-then, label %if-else
if-then: ; preds = %0
%fun_ptr = bitcast i32* %f to i32 (i32, i32*, i32)* ; <i32 (i32, i32*, i32)*> [#uses=1]
%arg1 = add i32 %x, -1 ; <i32> [#uses=1]
%res = tail call fastcc i32 %fun_ptr( i32 %arg1, i32* %f, i32 %g ) ; <i32> [#uses=1]
ret i32 %res
if-else: ; preds = %0
ret i32 %x
}