1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py 2; RUN: llc -enable-mssa-loop-dependency=false -verify-machineinstrs -mtriple=powerpc64le-unknown-unknown < %s | \ 3; RUN: FileCheck %s 4; RUN: llc -enable-mssa-loop-dependency=true -verify-machineinstrs -mtriple=powerpc64le-unknown-unknown < %s | \ 5; RUN: FileCheck %s --check-prefix=MSSA 6; Function Attrs: nounwind 7define void @ec_GFp_nistp256_points_mul() { 8; CHECK-LABEL: ec_GFp_nistp256_points_mul: 9; CHECK: ld 5, 0(3) 10; CHECK: li 3, 127 11; CHECK: li 4, 0 12; CHECK: subfic 6, 5, 0 13; CHECK: subfze 6, 4 14; CHECK: sradi 7, 6, 63 15; CHECK: srad 6, 6, 3 16; CHECK: subc 5, 7, 5 17; CHECK: subfe 5, 4, 6 18; CHECK: sradi 5, 5, 63 19 20; With MemorySSA, everything is taken out of the loop by licm. 21; Loads and stores to undef are treated as non-aliasing. 22; MSSA-LABEL: ec_GFp_nistp256_points_mul 23; MSSA: ld 3, 0(3) 24; MSSA: li 4, 0 25; MSSA: subfic 5, 3, 0 26; MSSA: subfze 5, 4 27; MSSA: sradi 5, 5, 63 28; MSSA: subc 3, 5, 3 29; MSSA: subfe 3, 4, 5 30; MSSA: sradi 3, 3, 63 31; MSSA: std 3, 0(3) 32entry: 33 br label %fe_cmovznz.exit.i534.i.15 34 35fe_cmovznz.exit.i534.i.15: ; preds = %fe_cmovznz.exit.i534.i.15, %entry 36 %0 = load i64, i64* undef, align 8 37 %1 = load i64, i64* undef, align 8 38 %conv.i69.i.i = zext i64 %0 to i128 39 %sub.i72.i.i = sub nsw i128 0, %conv.i69.i.i 40 %conv.i63.i.i = zext i64 %1 to i128 41 %add.neg.i.i.i = ashr i128 %sub.i72.i.i, 127 42 %sub.i65.i.i = sub nsw i128 %add.neg.i.i.i, %conv.i63.i.i 43 %sub.i65.lobit.i.i = ashr i128 %sub.i65.i.i, 127 44 %conv1.i58.i.i = and i128 %sub.i65.lobit.i.i, 18446744073709551615 45 %add3.i59.i.i = add nuw nsw i128 %conv1.i58.i.i, 0 46 %conv4.i60.i.i = trunc i128 %add3.i59.i.i to i64 47 store i64 %conv4.i60.i.i, i64* undef, align 16 48 br label %fe_cmovznz.exit.i534.i.15 49} 50 51