| ; Test 32-bit multiplication in which the second operand is variable. |
| ; |
| ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s |
| |
| declare i32 @foo() |
| |
| ; Check MSR. |
| define i32 @f1(i32 %a, i32 %b) { |
| ; CHECK-LABEL: f1: |
| ; CHECK: msr %r2, %r3 |
| ; CHECK: br %r14 |
| %mul = mul i32 %a, %b |
| ret i32 %mul |
| } |
| |
| ; Check the low end of the MS range. |
| define i32 @f2(i32 %a, ptr %src) { |
| ; CHECK-LABEL: f2: |
| ; CHECK: ms %r2, 0(%r3) |
| ; CHECK: br %r14 |
| %b = load i32, ptr %src |
| %mul = mul i32 %a, %b |
| ret i32 %mul |
| } |
| |
| ; Check the high end of the aligned MS range. |
| define i32 @f3(i32 %a, ptr %src) { |
| ; CHECK-LABEL: f3: |
| ; CHECK: ms %r2, 4092(%r3) |
| ; CHECK: br %r14 |
| %ptr = getelementptr i32, ptr %src, i64 1023 |
| %b = load i32, ptr %ptr |
| %mul = mul i32 %a, %b |
| ret i32 %mul |
| } |
| |
| ; Check the next word up, which should use MSY instead of MS. |
| define i32 @f4(i32 %a, ptr %src) { |
| ; CHECK-LABEL: f4: |
| ; CHECK: msy %r2, 4096(%r3) |
| ; CHECK: br %r14 |
| %ptr = getelementptr i32, ptr %src, i64 1024 |
| %b = load i32, ptr %ptr |
| %mul = mul i32 %a, %b |
| ret i32 %mul |
| } |
| |
| ; Check the high end of the aligned MSY range. |
| define i32 @f5(i32 %a, ptr %src) { |
| ; CHECK-LABEL: f5: |
| ; CHECK: msy %r2, 524284(%r3) |
| ; CHECK: br %r14 |
| %ptr = getelementptr i32, ptr %src, i64 131071 |
| %b = load i32, ptr %ptr |
| %mul = mul i32 %a, %b |
| ret i32 %mul |
| } |
| |
| ; Check the next word up, which needs separate address logic. |
| ; Other sequences besides this one would be OK. |
| define i32 @f6(i32 %a, ptr %src) { |
| ; CHECK-LABEL: f6: |
| ; CHECK: agfi %r3, 524288 |
| ; CHECK: ms %r2, 0(%r3) |
| ; CHECK: br %r14 |
| %ptr = getelementptr i32, ptr %src, i64 131072 |
| %b = load i32, ptr %ptr |
| %mul = mul i32 %a, %b |
| ret i32 %mul |
| } |
| |
| ; Check the high end of the negative aligned MSY range. |
| define i32 @f7(i32 %a, ptr %src) { |
| ; CHECK-LABEL: f7: |
| ; CHECK: msy %r2, -4(%r3) |
| ; CHECK: br %r14 |
| %ptr = getelementptr i32, ptr %src, i64 -1 |
| %b = load i32, ptr %ptr |
| %mul = mul i32 %a, %b |
| ret i32 %mul |
| } |
| |
| ; Check the low end of the MSY range. |
| define i32 @f8(i32 %a, ptr %src) { |
| ; CHECK-LABEL: f8: |
| ; CHECK: msy %r2, -524288(%r3) |
| ; CHECK: br %r14 |
| %ptr = getelementptr i32, ptr %src, i64 -131072 |
| %b = load i32, ptr %ptr |
| %mul = mul i32 %a, %b |
| ret i32 %mul |
| } |
| |
| ; Check the next word down, which needs separate address logic. |
| ; Other sequences besides this one would be OK. |
| define i32 @f9(i32 %a, ptr %src) { |
| ; CHECK-LABEL: f9: |
| ; CHECK: agfi %r3, -524292 |
| ; CHECK: ms %r2, 0(%r3) |
| ; CHECK: br %r14 |
| %ptr = getelementptr i32, ptr %src, i64 -131073 |
| %b = load i32, ptr %ptr |
| %mul = mul i32 %a, %b |
| ret i32 %mul |
| } |
| |
| ; Check that MS allows an index. |
| define i32 @f10(i32 %a, i64 %src, i64 %index) { |
| ; CHECK-LABEL: f10: |
| ; CHECK: ms %r2, 4092({{%r4,%r3|%r3,%r4}}) |
| ; CHECK: br %r14 |
| %add1 = add i64 %src, %index |
| %add2 = add i64 %add1, 4092 |
| %ptr = inttoptr i64 %add2 to ptr |
| %b = load i32, ptr %ptr |
| %mul = mul i32 %a, %b |
| ret i32 %mul |
| } |
| |
| ; Check that MSY allows an index. |
| define i32 @f11(i32 %a, i64 %src, i64 %index) { |
| ; CHECK-LABEL: f11: |
| ; CHECK: msy %r2, 4096({{%r4,%r3|%r3,%r4}}) |
| ; CHECK: br %r14 |
| %add1 = add i64 %src, %index |
| %add2 = add i64 %add1, 4096 |
| %ptr = inttoptr i64 %add2 to ptr |
| %b = load i32, ptr %ptr |
| %mul = mul i32 %a, %b |
| ret i32 %mul |
| } |
| |
| ; Check that multiplications of spilled values can use MS rather than MSR. |
| define i32 @f12(ptr %ptr0) { |
| ; CHECK-LABEL: f12: |
| ; CHECK: brasl %r14, foo@PLT |
| ; CHECK: ms %r2, 16{{[04]}}(%r15) |
| ; CHECK: br %r14 |
| %ptr1 = getelementptr i32, ptr %ptr0, i64 2 |
| %ptr2 = getelementptr i32, ptr %ptr0, i64 4 |
| %ptr3 = getelementptr i32, ptr %ptr0, i64 6 |
| %ptr4 = getelementptr i32, ptr %ptr0, i64 8 |
| %ptr5 = getelementptr i32, ptr %ptr0, i64 10 |
| %ptr6 = getelementptr i32, ptr %ptr0, i64 12 |
| %ptr7 = getelementptr i32, ptr %ptr0, i64 14 |
| %ptr8 = getelementptr i32, ptr %ptr0, i64 16 |
| %ptr9 = getelementptr i32, ptr %ptr0, i64 18 |
| |
| %val0 = load i32, ptr %ptr0 |
| %val1 = load i32, ptr %ptr1 |
| %val2 = load i32, ptr %ptr2 |
| %val3 = load i32, ptr %ptr3 |
| %val4 = load i32, ptr %ptr4 |
| %val5 = load i32, ptr %ptr5 |
| %val6 = load i32, ptr %ptr6 |
| %val7 = load i32, ptr %ptr7 |
| %val8 = load i32, ptr %ptr8 |
| %val9 = load i32, ptr %ptr9 |
| |
| %ret = call i32 @foo() |
| |
| %mul0 = mul i32 %ret, %val0 |
| %mul1 = mul i32 %mul0, %val1 |
| %mul2 = mul i32 %mul1, %val2 |
| %mul3 = mul i32 %mul2, %val3 |
| %mul4 = mul i32 %mul3, %val4 |
| %mul5 = mul i32 %mul4, %val5 |
| %mul6 = mul i32 %mul5, %val6 |
| %mul7 = mul i32 %mul6, %val7 |
| %mul8 = mul i32 %mul7, %val8 |
| %mul9 = mul i32 %mul8, %val9 |
| |
| ret i32 %mul9 |
| } |