llvm/test/CodeGen/Blackfin/add-overflow.ll
Jakob Stoklund Olesen d950941e13 Analog Devices Blackfin back-end.
Generate code for the Blackfin family of DSPs from Analog Devices:

  http://www.analog.com/en/embedded-processing-dsp/blackfin/processors/index.html
  
We aim to be compatible with the exsisting GNU toolchain found at:

  http://blackfin.uclinux.org/gf/project/toolchain
  
The back-end is experimental.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77897 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-02 17:32:10 +00:00

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477 B
LLVM

; RUN: llvm-as < %s | llc -march=bfin -verify-machineinstrs > %t
type { i24, i1 } ; type %0
define i1 @func2(i24 zeroext %v1, i24 zeroext %v2) nounwind {
entry:
%t = call %0 @llvm.uadd.with.overflow.i24(i24 %v1, i24 %v2) ; <%0> [#uses=1]
%obit = extractvalue %0 %t, 1 ; <i1> [#uses=1]
br i1 %obit, label %carry, label %normal
normal: ; preds = %entry
ret i1 true
carry: ; preds = %entry
ret i1 false
}
declare %0 @llvm.uadd.with.overflow.i24(i24, i24) nounwind