1 ; RUN: llc -march=hexagon < %s | FileCheck %s 2 ; This testcase crashed, because we propagated a reg:sub into a tied use. 3 ; The two-address pass rewrote it in a way that generated incorrect code. 4 ; CHECK: r{{[0-9]+}} += lsr(r{{[0-9]+}},#16) 5 6 target triple = "hexagon" 7 8 define i64 @fred(i64 %x) local_unnamed_addr #0 { 9 entry: 10 %t.sroa.0.0.extract.trunc = trunc i64 %x to i32 11 %t4.sroa.4.0.extract.shift = lshr i64 %x, 16 12 %add11 = add i32 0, %t.sroa.0.0.extract.trunc 13 %t14.sroa.3.0.extract.trunc = trunc i64 %t4.sroa.4.0.extract.shift to i32 14 %t14.sroa.4.0.extract.shift = lshr i64 %x, 24 15 %add21 = add i32 %add11, %t14.sroa.3.0.extract.trunc 16 %t24.sroa.3.0.extract.trunc = trunc i64 %t14.sroa.4.0.extract.shift to i32 17 %add31 = add i32 %add21, %t24.sroa.3.0.extract.trunc 18 %conv32.mask = and i32 %add31, 255 19 %conv33 = zext i32 %conv32.mask to i64 20 ret i64 %conv33 21 } 22 23 attributes #0 = { norecurse nounwind readnone } 24
