llvm-6502/test/CodeGen/PowerPC/iabs.ll

16 lines
420 B
LLVM
Raw Normal View History

; RUN: llvm-as < %s | llc -march=ppc32 -stats |& \
; RUN: grep {4 .*Number of machine instrs printed}
;; Integer absolute value, should produce something as good as:
;; srawi r2, r3, 31
;; add r3, r3, r2
;; xor r3, r3, r2
;; blr
define i32 @test(i32 %a) {
%tmp1neg = sub i32 0, %a
%b = icmp sgt i32 %a, -1
%abs = select i1 %b, i32 %a, i32 %tmp1neg
ret i32 %abs
}