71 lines · plain
1; RUN: llc < %s -mtriple=avr -mattr=movw,lpmx | FileCheck %s2; XFAIL: *3 4# Wide LPM is currently unimplemented in the pseudo expansion pass.5 6; Tests the extended LPM instructions (LPMW, LPM Rd, Z+).7 8define i8 @test8(ptr addrspace(1) %p) {9; CHECK-LABEL: test8:10; CHECK: movw r30, r2411; CHECK: lpm r24, Z12 %1 = load i8, ptr addrspace(1) %p13 ret i8 %114}15 16define i16 @test16(ptr addrspace(1) %p) {17; CHECK-LABEL: test16:18; CHECK: movw r30, r2419; CHECK: lpmw r24, Z20 %1 = load i16, ptr addrspace(1) %p21 ret i16 %122}23 24define i8 @test8postinc(ptr addrspace(1) %x, i8 %y) {25; CHECK-LABEL: test8postinc:26; CHECK: movw r30, r2427; CHECK: lpm {{.*}}, Z+28entry:29 %cmp10 = icmp sgt i8 %y, 030 br i1 %cmp10, label %for.body, label %for.end31 32for.body: ; preds = %entry, %for.body33 %ret.013 = phi i8 [ %add, %for.body ], [ 0, %entry ]34 %i.012 = phi i8 [ %inc, %for.body ], [ 0, %entry ]35 %x.addr.011 = phi ptr addrspace(1) [ %incdec.ptr, %for.body ], [ %x, %entry ]36 %incdec.ptr = getelementptr inbounds i8, ptr addrspace(1) %x.addr.011, i16 137 %0 = load i8, ptr addrspace(1) %x.addr.01138 %add = add i8 %0, %ret.01339 %inc = add i8 %i.012, 140 %exitcond = icmp eq i8 %inc, %y41 br i1 %exitcond, label %for.end, label %for.body42 43for.end: ; preds = %for.body, %entry44 %ret.0.lcssa = phi i8 [ 0, %entry ], [ %add, %for.body ]45 ret i8 %ret.0.lcssa46}47 48define i16 @test16postinc(ptr addrspace(1) %x, i8 %y) {49; CHECK-LABEL: test16postinc:50; CHECK: movw r30, r2451; CHECK: lpmw {{.*}}, Z+52entry:53 %cmp5 = icmp sgt i8 %y, 054 br i1 %cmp5, label %for.body, label %for.end55 56for.body: ; preds = %entry, %for.body57 %ret.08 = phi i16 [ %add, %for.body ], [ 0, %entry ]58 %i.07 = phi i8 [ %inc, %for.body ], [ 0, %entry ]59 %x.addr.06 = phi ptr addrspace(1) [ %incdec.ptr, %for.body ], [ %x, %entry ]60 %incdec.ptr = getelementptr inbounds i16, ptr addrspace(1) %x.addr.06, i16 161 %0 = load i16, ptr addrspace(1) %x.addr.0662 %add = add nsw i16 %0, %ret.0863 %inc = add i8 %i.07, 164 %exitcond = icmp eq i8 %inc, %y65 br i1 %exitcond, label %for.end, label %for.body66 67for.end: ; preds = %for.body, %entry68 %ret.0.lcssa = phi i16 [ 0, %entry ], [ %add, %for.body ]69 ret i16 %ret.0.lcssa70}71