| ; RUN: llc -mtriple=s390x-linux-gnu -mcpu=z13 -misched-cutoff=1 -o /dev/null < %s |
| ; REQUIRES: asserts |
| ; -misched=shuffle isn't available in NDEBUG builds! |
| |
| ; Test that the post-ra scheduler does not crash with -misched-cutoff. |
| |
| @g_184 = external dso_local global i16, align 2 |
| @g_294 = external dso_local global [1 x [9 x ptr]], align 8 |
| |
| define void @fun() { |
| bb: |
| br label %bb1 |
| |
| bb1: ; preds = %bb1, %bb |
| %i = phi i64 [ 0, %bb ], [ %i22, %bb1 ] |
| %i2 = trunc i64 %i to i32 |
| %i3 = lshr i32 %i2, 1 |
| %i4 = select i1 false, i32 %i3, i32 undef |
| %i5 = lshr i32 %i4, 1 |
| %i6 = xor i32 %i5, -306674912 |
| %i7 = select i1 undef, i32 %i5, i32 %i6 |
| %i8 = lshr i32 %i7, 1 |
| %i9 = xor i32 %i8, -306674912 |
| %i10 = select i1 undef, i32 %i8, i32 %i9 |
| %i11 = lshr i32 %i10, 1 |
| %i12 = xor i32 %i11, -306674912 |
| %i13 = select i1 undef, i32 %i11, i32 %i12 |
| %i14 = lshr i32 %i13, 1 |
| %i15 = select i1 false, i32 %i14, i32 undef |
| %i16 = lshr i32 %i15, 1 |
| %i17 = select i1 false, i32 %i16, i32 undef |
| %i18 = lshr i32 %i17, 1 |
| %i19 = select i1 false, i32 %i18, i32 undef |
| %i20 = lshr i32 %i19, 1 |
| %i21 = select i1 false, i32 %i20, i32 undef |
| store i32 %i21, ptr undef, align 4 |
| %i22 = add nuw nsw i64 %i, 1 |
| %i23 = icmp ult i64 %i, 255 |
| br i1 %i23, label %bb1, label %bb24 |
| |
| bb24: ; preds = %bb1 |
| %i25 = load volatile i16, ptr undef |
| store ptr null, ptr undef, align 8 |
| store i32 -10, ptr undef, align 4 |
| store i32 -10, ptr null, align 4 |
| store i32 -10, ptr undef, align 4 |
| store i16 0, ptr @g_184, align 2 |
| store ptr null, ptr getelementptr inbounds ([1 x [9 x ptr]], ptr @g_294, i64 0, i64 0, i64 2), align 8 |
| store ptr null, ptr getelementptr inbounds ([1 x [9 x ptr]], ptr @g_294, i64 0, i64 0, i64 5), align 8 |
| unreachable |
| } |