a1710eb3cd
The LIT test cases were migrated with the script provided by Nikita Popov. No manual changes were made. Committed without review since no functional changes, after consultation with uweigand.
141 lines
3.6 KiB
LLVM
141 lines
3.6 KiB
LLVM
; Test 64-bit subtraction in which the second operand is variable.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z10 | FileCheck %s
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; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z196 | FileCheck %s
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declare i64 @foo()
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; Check SGR.
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define i64 @f1(i64 %a, i64 %b) {
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; CHECK-LABEL: f1:
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; CHECK: sgr %r2, %r3
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; CHECK: br %r14
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%sub = sub i64 %a, %b
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ret i64 %sub
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}
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; Check SG with no displacement.
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define i64 @f2(i64 %a, ptr %src) {
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; CHECK-LABEL: f2:
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; CHECK: sg %r2, 0(%r3)
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; CHECK: br %r14
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%b = load i64, ptr %src
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%sub = sub i64 %a, %b
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ret i64 %sub
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}
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; Check the high end of the aligned SG range.
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define i64 @f3(i64 %a, ptr %src) {
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; CHECK-LABEL: f3:
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; CHECK: sg %r2, 524280(%r3)
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; CHECK: br %r14
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%ptr = getelementptr i64, ptr %src, i64 65535
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%b = load i64, ptr %ptr
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%sub = sub i64 %a, %b
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ret i64 %sub
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}
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; Check the next doubleword up, which needs separate address logic.
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; Other sequences besides this one would be OK.
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define i64 @f4(i64 %a, ptr %src) {
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; CHECK-LABEL: f4:
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; CHECK: agfi %r3, 524288
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; CHECK: sg %r2, 0(%r3)
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; CHECK: br %r14
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%ptr = getelementptr i64, ptr %src, i64 65536
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%b = load i64, ptr %ptr
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%sub = sub i64 %a, %b
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ret i64 %sub
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}
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; Check the high end of the negative aligned SG range.
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define i64 @f5(i64 %a, ptr %src) {
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; CHECK-LABEL: f5:
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; CHECK: sg %r2, -8(%r3)
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; CHECK: br %r14
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%ptr = getelementptr i64, ptr %src, i64 -1
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%b = load i64, ptr %ptr
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%sub = sub i64 %a, %b
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ret i64 %sub
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}
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; Check the low end of the SG range.
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define i64 @f6(i64 %a, ptr %src) {
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; CHECK-LABEL: f6:
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; CHECK: sg %r2, -524288(%r3)
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; CHECK: br %r14
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%ptr = getelementptr i64, ptr %src, i64 -65536
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%b = load i64, ptr %ptr
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%sub = sub i64 %a, %b
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ret i64 %sub
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}
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; Check the next doubleword down, which needs separate address logic.
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; Other sequences besides this one would be OK.
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define i64 @f7(i64 %a, ptr %src) {
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; CHECK-LABEL: f7:
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; CHECK: agfi %r3, -524296
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; CHECK: sg %r2, 0(%r3)
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; CHECK: br %r14
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%ptr = getelementptr i64, ptr %src, i64 -65537
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%b = load i64, ptr %ptr
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%sub = sub i64 %a, %b
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ret i64 %sub
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}
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; Check that SG allows an index.
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define i64 @f8(i64 %a, i64 %src, i64 %index) {
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; CHECK-LABEL: f8:
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; CHECK: sg %r2, 524280({{%r4,%r3|%r3,%r4}})
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; CHECK: br %r14
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%add1 = add i64 %src, %index
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%add2 = add i64 %add1, 524280
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%ptr = inttoptr i64 %add2 to ptr
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%b = load i64, ptr %ptr
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%sub = sub i64 %a, %b
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ret i64 %sub
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}
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; Check that subtractions of spilled values can use SG rather than SGR.
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define i64 @f9(ptr %ptr0) {
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; CHECK-LABEL: f9:
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; CHECK: brasl %r14, foo@PLT
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; CHECK: sg %r2, 160(%r15)
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; CHECK: br %r14
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%ptr1 = getelementptr i64, ptr %ptr0, i64 2
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%ptr2 = getelementptr i64, ptr %ptr0, i64 4
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%ptr3 = getelementptr i64, ptr %ptr0, i64 6
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%ptr4 = getelementptr i64, ptr %ptr0, i64 8
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%ptr5 = getelementptr i64, ptr %ptr0, i64 10
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%ptr6 = getelementptr i64, ptr %ptr0, i64 12
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%ptr7 = getelementptr i64, ptr %ptr0, i64 14
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%ptr8 = getelementptr i64, ptr %ptr0, i64 16
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%ptr9 = getelementptr i64, ptr %ptr0, i64 18
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%val0 = load i64, ptr %ptr0
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%val1 = load i64, ptr %ptr1
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%val2 = load i64, ptr %ptr2
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%val3 = load i64, ptr %ptr3
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%val4 = load i64, ptr %ptr4
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%val5 = load i64, ptr %ptr5
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%val6 = load i64, ptr %ptr6
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%val7 = load i64, ptr %ptr7
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%val8 = load i64, ptr %ptr8
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%val9 = load i64, ptr %ptr9
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%ret = call i64 @foo()
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%sub0 = sub i64 %ret, %val0
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%sub1 = sub i64 %sub0, %val1
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%sub2 = sub i64 %sub1, %val2
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%sub3 = sub i64 %sub2, %val3
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%sub4 = sub i64 %sub3, %val4
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%sub5 = sub i64 %sub4, %val5
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%sub6 = sub i64 %sub5, %val6
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%sub7 = sub i64 %sub6, %val7
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%sub8 = sub i64 %sub7, %val8
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%sub9 = sub i64 %sub8, %val9
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ret i64 %sub9
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}
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