; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 3 ; Test 32-bit subtraction in which the second operand is variable. ; ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s declare i32 @foo() ; Check SLR. define zeroext i1 @f1(i32 %dummy, i32 %a, i32 %b, ptr %res) { ; CHECK-LABEL: f1: ; CHECK: # %bb.0: ; CHECK-NEXT: slr %r3, %r4 ; CHECK-NEXT: ipm %r0 ; CHECK-NEXT: afi %r0, -536870912 ; CHECK-NEXT: risbg %r2, %r0, 63, 191, 33 ; CHECK-NEXT: st %r3, 0(%r5) ; CHECK-NEXT: br %r14 %t = call {i32, i1} @llvm.usub.with.overflow.i32(i32 %a, i32 %b) %val = extractvalue {i32, i1} %t, 0 %obit = extractvalue {i32, i1} %t, 1 store i32 %val, ptr %res ret i1 %obit } ; Check using the overflow result for a branch. define void @f2(i32 %dummy, i32 %a, i32 %b, ptr %res) { ; CHECK-LABEL: f2: ; CHECK: # %bb.0: ; CHECK-NEXT: slr %r3, %r4 ; CHECK-NEXT: st %r3, 0(%r5) ; CHECK-NEXT: jgle foo@PLT ; CHECK-NEXT: .LBB1_1: # %exit ; CHECK-NEXT: br %r14 %t = call {i32, i1} @llvm.usub.with.overflow.i32(i32 %a, i32 %b) %val = extractvalue {i32, i1} %t, 0 %obit = extractvalue {i32, i1} %t, 1 store i32 %val, ptr %res br i1 %obit, label %call, label %exit call: tail call i32 @foo() br label %exit exit: ret void } ; ... and the same with the inverted direction. define void @f3(i32 %dummy, i32 %a, i32 %b, ptr %res) { ; CHECK-LABEL: f3: ; CHECK: # %bb.0: ; CHECK-NEXT: slr %r3, %r4 ; CHECK-NEXT: st %r3, 0(%r5) ; CHECK-NEXT: jgnle foo@PLT ; CHECK-NEXT: .LBB2_1: # %exit ; CHECK-NEXT: br %r14 %t = call {i32, i1} @llvm.usub.with.overflow.i32(i32 %a, i32 %b) %val = extractvalue {i32, i1} %t, 0 %obit = extractvalue {i32, i1} %t, 1 store i32 %val, ptr %res br i1 %obit, label %exit, label %call call: tail call i32 @foo() br label %exit exit: ret void } ; Check the low end of the SL range. define zeroext i1 @f4(i32 %dummy, i32 %a, ptr %src, ptr %res) { ; CHECK-LABEL: f4: ; CHECK: # %bb.0: ; CHECK-NEXT: sl %r3, 0(%r4) ; CHECK-NEXT: ipm %r0 ; CHECK-NEXT: afi %r0, -536870912 ; CHECK-NEXT: risbg %r2, %r0, 63, 191, 33 ; CHECK-NEXT: st %r3, 0(%r5) ; CHECK-NEXT: br %r14 %b = load i32, ptr %src %t = call {i32, i1} @llvm.usub.with.overflow.i32(i32 %a, i32 %b) %val = extractvalue {i32, i1} %t, 0 %obit = extractvalue {i32, i1} %t, 1 store i32 %val, ptr %res ret i1 %obit } ; Check the high end of the aligned SL range. define zeroext i1 @f5(i32 %dummy, i32 %a, ptr %src, ptr %res) { ; CHECK-LABEL: f5: ; CHECK: # %bb.0: ; CHECK-NEXT: sl %r3, 4092(%r4) ; CHECK-NEXT: ipm %r0 ; CHECK-NEXT: afi %r0, -536870912 ; CHECK-NEXT: risbg %r2, %r0, 63, 191, 33 ; CHECK-NEXT: st %r3, 0(%r5) ; CHECK-NEXT: br %r14 %ptr = getelementptr i32, ptr %src, i64 1023 %b = load i32, ptr %ptr %t = call {i32, i1} @llvm.usub.with.overflow.i32(i32 %a, i32 %b) %val = extractvalue {i32, i1} %t, 0 %obit = extractvalue {i32, i1} %t, 1 store i32 %val, ptr %res ret i1 %obit } ; Check the next word up, which should use SLY instead of SL. define zeroext i1 @f6(i32 %dummy, i32 %a, ptr %src, ptr %res) { ; CHECK-LABEL: f6: ; CHECK: # %bb.0: ; CHECK-NEXT: sly %r3, 4096(%r4) ; CHECK-NEXT: ipm %r0 ; CHECK-NEXT: afi %r0, -536870912 ; CHECK-NEXT: risbg %r2, %r0, 63, 191, 33 ; CHECK-NEXT: st %r3, 0(%r5) ; CHECK-NEXT: br %r14 %ptr = getelementptr i32, ptr %src, i64 1024 %b = load i32, ptr %ptr %t = call {i32, i1} @llvm.usub.with.overflow.i32(i32 %a, i32 %b) %val = extractvalue {i32, i1} %t, 0 %obit = extractvalue {i32, i1} %t, 1 store i32 %val, ptr %res ret i1 %obit } ; Check the high end of the aligned SLY range. define zeroext i1 @f7(i32 %dummy, i32 %a, ptr %src, ptr %res) { ; CHECK-LABEL: f7: ; CHECK: # %bb.0: ; CHECK-NEXT: sly %r3, 524284(%r4) ; CHECK-NEXT: ipm %r0 ; CHECK-NEXT: afi %r0, -536870912 ; CHECK-NEXT: risbg %r2, %r0, 63, 191, 33 ; CHECK-NEXT: st %r3, 0(%r5) ; CHECK-NEXT: br %r14 %ptr = getelementptr i32, ptr %src, i64 131071 %b = load i32, ptr %ptr %t = call {i32, i1} @llvm.usub.with.overflow.i32(i32 %a, i32 %b) %val = extractvalue {i32, i1} %t, 0 %obit = extractvalue {i32, i1} %t, 1 store i32 %val, ptr %res ret i1 %obit } ; Check the next word up, which needs separate address logic. ; Other sequences besides this one would be OK. define zeroext i1 @f8(i32 %dummy, i32 %a, ptr %src, ptr %res) { ; CHECK-LABEL: f8: ; CHECK: # %bb.0: ; CHECK-NEXT: agfi %r4, 524288 ; CHECK-NEXT: sl %r3, 0(%r4) ; CHECK-NEXT: ipm %r0 ; CHECK-NEXT: afi %r0, -536870912 ; CHECK-NEXT: risbg %r2, %r0, 63, 191, 33 ; CHECK-NEXT: st %r3, 0(%r5) ; CHECK-NEXT: br %r14 %ptr = getelementptr i32, ptr %src, i64 131072 %b = load i32, ptr %ptr %t = call {i32, i1} @llvm.usub.with.overflow.i32(i32 %a, i32 %b) %val = extractvalue {i32, i1} %t, 0 %obit = extractvalue {i32, i1} %t, 1 store i32 %val, ptr %res ret i1 %obit } ; Check the high end of the negative aligned SLY range. define zeroext i1 @f9(i32 %dummy, i32 %a, ptr %src, ptr %res) { ; CHECK-LABEL: f9: ; CHECK: # %bb.0: ; CHECK-NEXT: sly %r3, -4(%r4) ; CHECK-NEXT: ipm %r0 ; CHECK-NEXT: afi %r0, -536870912 ; CHECK-NEXT: risbg %r2, %r0, 63, 191, 33 ; CHECK-NEXT: st %r3, 0(%r5) ; CHECK-NEXT: br %r14 %ptr = getelementptr i32, ptr %src, i64 -1 %b = load i32, ptr %ptr %t = call {i32, i1} @llvm.usub.with.overflow.i32(i32 %a, i32 %b) %val = extractvalue {i32, i1} %t, 0 %obit = extractvalue {i32, i1} %t, 1 store i32 %val, ptr %res ret i1 %obit } ; Check the low end of the SLY range. define zeroext i1 @f10(i32 %dummy, i32 %a, ptr %src, ptr %res) { ; CHECK-LABEL: f10: ; CHECK: # %bb.0: ; CHECK-NEXT: sly %r3, -524288(%r4) ; CHECK-NEXT: ipm %r0 ; CHECK-NEXT: afi %r0, -536870912 ; CHECK-NEXT: risbg %r2, %r0, 63, 191, 33 ; CHECK-NEXT: st %r3, 0(%r5) ; CHECK-NEXT: br %r14 %ptr = getelementptr i32, ptr %src, i64 -131072 %b = load i32, ptr %ptr %t = call {i32, i1} @llvm.usub.with.overflow.i32(i32 %a, i32 %b) %val = extractvalue {i32, i1} %t, 0 %obit = extractvalue {i32, i1} %t, 1 store i32 %val, ptr %res ret i1 %obit } ; Check the next word down, which needs separate address logic. ; Other sequences besides this one would be OK. define zeroext i1 @f11(i32 %dummy, i32 %a, ptr %src, ptr %res) { ; CHECK-LABEL: f11: ; CHECK: # %bb.0: ; CHECK-NEXT: agfi %r4, -524292 ; CHECK-NEXT: sl %r3, 0(%r4) ; CHECK-NEXT: ipm %r0 ; CHECK-NEXT: afi %r0, -536870912 ; CHECK-NEXT: risbg %r2, %r0, 63, 191, 33 ; CHECK-NEXT: st %r3, 0(%r5) ; CHECK-NEXT: br %r14 %ptr = getelementptr i32, ptr %src, i64 -131073 %b = load i32, ptr %ptr %t = call {i32, i1} @llvm.usub.with.overflow.i32(i32 %a, i32 %b) %val = extractvalue {i32, i1} %t, 0 %obit = extractvalue {i32, i1} %t, 1 store i32 %val, ptr %res ret i1 %obit } ; Check that SL allows an index. define zeroext i1 @f12(i64 %src, i64 %index, i32 %a, ptr %res) { ; CHECK-LABEL: f12: ; CHECK: # %bb.0: ; CHECK-NEXT: sl %r4, 4092(%r3,%r2) ; CHECK-NEXT: ipm %r0 ; CHECK-NEXT: afi %r0, -536870912 ; CHECK-NEXT: risbg %r2, %r0, 63, 191, 33 ; CHECK-NEXT: st %r4, 0(%r5) ; CHECK-NEXT: br %r14 %add1 = add i64 %src, %index %add2 = add i64 %add1, 4092 %ptr = inttoptr i64 %add2 to ptr %b = load i32, ptr %ptr %t = call {i32, i1} @llvm.usub.with.overflow.i32(i32 %a, i32 %b) %val = extractvalue {i32, i1} %t, 0 %obit = extractvalue {i32, i1} %t, 1 store i32 %val, ptr %res ret i1 %obit } ; Check that SLY allows an index. define zeroext i1 @f13(i64 %src, i64 %index, i32 %a, ptr %res) { ; CHECK-LABEL: f13: ; CHECK: # %bb.0: ; CHECK-NEXT: sly %r4, 4096(%r3,%r2) ; CHECK-NEXT: ipm %r0 ; CHECK-NEXT: afi %r0, -536870912 ; CHECK-NEXT: risbg %r2, %r0, 63, 191, 33 ; CHECK-NEXT: st %r4, 0(%r5) ; CHECK-NEXT: br %r14 %add1 = add i64 %src, %index %add2 = add i64 %add1, 4096 %ptr = inttoptr i64 %add2 to ptr %b = load i32, ptr %ptr %t = call {i32, i1} @llvm.usub.with.overflow.i32(i32 %a, i32 %b) %val = extractvalue {i32, i1} %t, 0 %obit = extractvalue {i32, i1} %t, 1 store i32 %val, ptr %res ret i1 %obit } ; Check that subtractions of spilled values can use SL rather than SLR. define zeroext i1 @f14(ptr %ptr0) { ; CHECK-LABEL: f14: ; CHECK: # %bb.0: ; CHECK-NEXT: stmg %r6, %r15, 48(%r15) ; CHECK-NEXT: .cfi_offset %r6, -112 ; CHECK-NEXT: .cfi_offset %r7, -104 ; CHECK-NEXT: .cfi_offset %r8, -96 ; CHECK-NEXT: .cfi_offset %r9, -88 ; CHECK-NEXT: .cfi_offset %r10, -80 ; CHECK-NEXT: .cfi_offset %r11, -72 ; CHECK-NEXT: .cfi_offset %r12, -64 ; CHECK-NEXT: .cfi_offset %r13, -56 ; CHECK-NEXT: .cfi_offset %r14, -48 ; CHECK-NEXT: .cfi_offset %r15, -40 ; CHECK-NEXT: aghi %r15, -168 ; CHECK-NEXT: .cfi_def_cfa_offset 328 ; CHECK-NEXT: l %r6, 0(%r2) ; CHECK-NEXT: l %r13, 8(%r2) ; CHECK-NEXT: l %r12, 16(%r2) ; CHECK-NEXT: l %r7, 24(%r2) ; CHECK-NEXT: l %r8, 32(%r2) ; CHECK-NEXT: l %r9, 40(%r2) ; CHECK-NEXT: l %r10, 48(%r2) ; CHECK-NEXT: l %r11, 56(%r2) ; CHECK-NEXT: mvc 160(4,%r15), 64(%r2) # 4-byte Folded Spill ; CHECK-NEXT: mvc 164(4,%r15), 72(%r2) # 4-byte Folded Spill ; CHECK-NEXT: brasl %r14, foo@PLT ; CHECK-NEXT: slr %r2, %r6 ; CHECK-NEXT: ipm %r0 ; CHECK-NEXT: afi %r0, -536870912 ; CHECK-NEXT: srl %r0, 31 ; CHECK-NEXT: slr %r2, %r13 ; CHECK-NEXT: ipm %r1 ; CHECK-NEXT: afi %r1, -536870912 ; CHECK-NEXT: rosbg %r0, %r1, 63, 63, 33 ; CHECK-NEXT: slr %r2, %r12 ; CHECK-NEXT: ipm %r1 ; CHECK-NEXT: afi %r1, -536870912 ; CHECK-NEXT: rosbg %r0, %r1, 63, 63, 33 ; CHECK-NEXT: slr %r2, %r7 ; CHECK-NEXT: ipm %r1 ; CHECK-NEXT: afi %r1, -536870912 ; CHECK-NEXT: rosbg %r0, %r1, 63, 63, 33 ; CHECK-NEXT: slr %r2, %r8 ; CHECK-NEXT: ipm %r1 ; CHECK-NEXT: afi %r1, -536870912 ; CHECK-NEXT: rosbg %r0, %r1, 63, 63, 33 ; CHECK-NEXT: slr %r2, %r9 ; CHECK-NEXT: ipm %r1 ; CHECK-NEXT: afi %r1, -536870912 ; CHECK-NEXT: rosbg %r0, %r1, 63, 63, 33 ; CHECK-NEXT: slr %r2, %r10 ; CHECK-NEXT: ipm %r1 ; CHECK-NEXT: afi %r1, -536870912 ; CHECK-NEXT: rosbg %r0, %r1, 63, 63, 33 ; CHECK-NEXT: slr %r2, %r11 ; CHECK-NEXT: ipm %r1 ; CHECK-NEXT: afi %r1, -536870912 ; CHECK-NEXT: rosbg %r0, %r1, 63, 63, 33 ; CHECK-NEXT: sl %r2, 160(%r15) # 4-byte Folded Reload ; CHECK-NEXT: ipm %r1 ; CHECK-NEXT: afi %r1, -536870912 ; CHECK-NEXT: rosbg %r0, %r1, 63, 63, 33 ; CHECK-NEXT: sl %r2, 164(%r15) # 4-byte Folded Reload ; CHECK-NEXT: ipm %r1 ; CHECK-NEXT: afi %r1, -536870912 ; CHECK-NEXT: rosbg %r0, %r1, 63, 63, 33 ; CHECK-NEXT: risbg %r2, %r0, 63, 191, 0 ; CHECK-NEXT: lmg %r6, %r15, 216(%r15) ; CHECK-NEXT: 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() %t0 = call {i32, i1} @llvm.usub.with.overflow.i32(i32 %ret, i32 %val0) %add0 = extractvalue {i32, i1} %t0, 0 %obit0 = extractvalue {i32, i1} %t0, 1 %t1 = call {i32, i1} @llvm.usub.with.overflow.i32(i32 %add0, i32 %val1) %add1 = extractvalue {i32, i1} %t1, 0 %obit1 = extractvalue {i32, i1} %t1, 1 %res1 = or i1 %obit0, %obit1 %t2 = call {i32, i1} @llvm.usub.with.overflow.i32(i32 %add1, i32 %val2) %add2 = extractvalue {i32, i1} %t2, 0 %obit2 = extractvalue {i32, i1} %t2, 1 %res2 = or i1 %res1, %obit2 %t3 = call {i32, i1} @llvm.usub.with.overflow.i32(i32 %add2, i32 %val3) %add3 = extractvalue {i32, i1} %t3, 0 %obit3 = extractvalue {i32, i1} %t3, 1 %res3 = or i1 %res2, %obit3 %t4 = call {i32, i1} @llvm.usub.with.overflow.i32(i32 %add3, i32 %val4) %add4 = extractvalue {i32, i1} %t4, 0 %obit4 = extractvalue {i32, i1} %t4, 1 %res4 = or i1 %res3, %obit4 %t5 = call {i32, i1} @llvm.usub.with.overflow.i32(i32 %add4, i32 %val5) %add5 = extractvalue {i32, i1} %t5, 0 %obit5 = extractvalue {i32, i1} %t5, 1 %res5 = or i1 %res4, %obit5 %t6 = call {i32, i1} @llvm.usub.with.overflow.i32(i32 %add5, i32 %val6) %add6 = extractvalue {i32, i1} %t6, 0 %obit6 = extractvalue {i32, i1} %t6, 1 %res6 = or i1 %res5, %obit6 %t7 = call {i32, i1} @llvm.usub.with.overflow.i32(i32 %add6, i32 %val7) %add7 = extractvalue {i32, i1} %t7, 0 %obit7 = extractvalue {i32, i1} %t7, 1 %res7 = or i1 %res6, %obit7 %t8 = call {i32, i1} @llvm.usub.with.overflow.i32(i32 %add7, i32 %val8) %add8 = extractvalue {i32, i1} %t8, 0 %obit8 = extractvalue {i32, i1} %t8, 1 %res8 = or i1 %res7, %obit8 %t9 = call {i32, i1} @llvm.usub.with.overflow.i32(i32 %add8, i32 %val9) %add9 = extractvalue {i32, i1} %t9, 0 %obit9 = extractvalue {i32, i1} %t9, 1 %res9 = or i1 %res8, %obit9 ret i1 %res9 } declare {i32, i1} @llvm.usub.with.overflow.i32(i32, i32) nounwind readnone