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

17 lines
460 B
LLVM
Raw Normal View History

; REQUIRES: asserts
; RUN: llc -verify-machineinstrs < %s -mtriple=ppc32-- -stats 2>&1 | \
; 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
}