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 | \
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
7 define void @ec_GFp_nistp256_points_mul() {
8 ; CHECK-LABEL: ec_GFp_nistp256_points_mul:
12 ; CHECK: subfic 6, 5, 0
14 ; CHECK: sradi 7, 6, 63
16 ; CHECK: subfc 5, 5, 7
17 ; CHECK: subfe 5, 4, 6
18 ; CHECK: sradi 5, 5, 63
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
25 ; MSSA: subfic 5, 3, 0
27 ; MSSA: sradi 5, 5, 63
30 ; MSSA: sradi 3, 3, 63
33 br label %fe_cmovznz.exit.i534.i.15
35 fe_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