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.
122 lines
3.4 KiB
LLVM
122 lines
3.4 KiB
LLVM
; Test 64-bit floating-point division.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z10 \
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; RUN: | FileCheck -check-prefix=CHECK -check-prefix=CHECK-SCALAR %s
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; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z13 | FileCheck %s
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declare double @foo()
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; Check register division.
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define double @f1(double %f1, double %f2) {
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; CHECK-LABEL: f1:
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; CHECK: ddbr %f0, %f2
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; CHECK: br %r14
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%res = fdiv double %f1, %f2
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ret double %res
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}
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; Check the low end of the DDB range.
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define double @f2(double %f1, ptr %ptr) {
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; CHECK-LABEL: f2:
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; CHECK: ddb %f0, 0(%r2)
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; CHECK: br %r14
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%f2 = load double, ptr %ptr
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%res = fdiv double %f1, %f2
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ret double %res
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}
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; Check the high end of the aligned DDB range.
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define double @f3(double %f1, ptr %base) {
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; CHECK-LABEL: f3:
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; CHECK: ddb %f0, 4088(%r2)
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; CHECK: br %r14
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%ptr = getelementptr double, ptr %base, i64 511
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%f2 = load double, ptr %ptr
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%res = fdiv double %f1, %f2
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ret double %res
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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 double @f4(double %f1, ptr %base) {
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; CHECK-LABEL: f4:
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; CHECK: aghi %r2, 4096
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; CHECK: ddb %f0, 0(%r2)
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; CHECK: br %r14
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%ptr = getelementptr double, ptr %base, i64 512
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%f2 = load double, ptr %ptr
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%res = fdiv double %f1, %f2
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ret double %res
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}
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; Check negative displacements, which also need separate address logic.
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define double @f5(double %f1, ptr %base) {
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; CHECK-LABEL: f5:
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; CHECK: aghi %r2, -8
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; CHECK: ddb %f0, 0(%r2)
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; CHECK: br %r14
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%ptr = getelementptr double, ptr %base, i64 -1
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%f2 = load double, ptr %ptr
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%res = fdiv double %f1, %f2
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ret double %res
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}
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; Check that DDB allows indices.
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define double @f6(double %f1, ptr %base, i64 %index) {
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; CHECK-LABEL: f6:
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; CHECK: sllg %r1, %r3, 3
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; CHECK: ddb %f0, 800(%r1,%r2)
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; CHECK: br %r14
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%ptr1 = getelementptr double, ptr %base, i64 %index
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%ptr2 = getelementptr double, ptr %ptr1, i64 100
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%f2 = load double, ptr %ptr2
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%res = fdiv double %f1, %f2
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ret double %res
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}
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; Check that divisions of spilled values can use DDB rather than DDBR.
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define double @f7(ptr %ptr0) {
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; CHECK-LABEL: f7:
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; CHECK: brasl %r14, foo@PLT
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; CHECK-SCALAR: ddb %f0, 160(%r15)
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; CHECK: br %r14
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%ptr1 = getelementptr double, ptr %ptr0, i64 2
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%ptr2 = getelementptr double, ptr %ptr0, i64 4
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%ptr3 = getelementptr double, ptr %ptr0, i64 6
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%ptr4 = getelementptr double, ptr %ptr0, i64 8
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%ptr5 = getelementptr double, ptr %ptr0, i64 10
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%ptr6 = getelementptr double, ptr %ptr0, i64 12
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%ptr7 = getelementptr double, ptr %ptr0, i64 14
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%ptr8 = getelementptr double, ptr %ptr0, i64 16
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%ptr9 = getelementptr double, ptr %ptr0, i64 18
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%ptr10 = getelementptr double, ptr %ptr0, i64 20
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%val0 = load double, ptr %ptr0
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%val1 = load double, ptr %ptr1
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%val2 = load double, ptr %ptr2
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%val3 = load double, ptr %ptr3
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%val4 = load double, ptr %ptr4
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%val5 = load double, ptr %ptr5
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%val6 = load double, ptr %ptr6
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%val7 = load double, ptr %ptr7
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%val8 = load double, ptr %ptr8
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%val9 = load double, ptr %ptr9
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%val10 = load double, ptr %ptr10
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%ret = call double @foo()
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%div0 = fdiv double %ret, %val0
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%div1 = fdiv double %div0, %val1
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%div2 = fdiv double %div1, %val2
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%div3 = fdiv double %div2, %val3
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%div4 = fdiv double %div3, %val4
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%div5 = fdiv double %div4, %val5
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%div6 = fdiv double %div5, %val6
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%div7 = fdiv double %div6, %val7
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%div8 = fdiv double %div7, %val8
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%div9 = fdiv double %div8, %val9
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%div10 = fdiv double %div9, %val10
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ret double %div10
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}
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