You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
122 lines
3.6 KiB
122 lines
3.6 KiB
; Test 64-bit floating-point division.
|
|
;
|
|
; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z10 \
|
|
; RUN: | FileCheck -check-prefix=CHECK -check-prefix=CHECK-SCALAR %s
|
|
; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z13 | FileCheck %s
|
|
|
|
declare double @foo()
|
|
|
|
; Check register division.
|
|
define double @f1(double %f1, double %f2) {
|
|
; CHECK-LABEL: f1:
|
|
; CHECK: ddbr %f0, %f2
|
|
; CHECK: br %r14
|
|
%res = fdiv double %f1, %f2
|
|
ret double %res
|
|
}
|
|
|
|
; Check the low end of the DDB range.
|
|
define double @f2(double %f1, double *%ptr) {
|
|
; CHECK-LABEL: f2:
|
|
; CHECK: ddb %f0, 0(%r2)
|
|
; CHECK: br %r14
|
|
%f2 = load double , double *%ptr
|
|
%res = fdiv double %f1, %f2
|
|
ret double %res
|
|
}
|
|
|
|
; Check the high end of the aligned DDB range.
|
|
define double @f3(double %f1, double *%base) {
|
|
; CHECK-LABEL: f3:
|
|
; CHECK: ddb %f0, 4088(%r2)
|
|
; CHECK: br %r14
|
|
%ptr = getelementptr double, double *%base, i64 511
|
|
%f2 = load double , double *%ptr
|
|
%res = fdiv double %f1, %f2
|
|
ret double %res
|
|
}
|
|
|
|
; Check the next doubleword up, which needs separate address logic.
|
|
; Other sequences besides this one would be OK.
|
|
define double @f4(double %f1, double *%base) {
|
|
; CHECK-LABEL: f4:
|
|
; CHECK: aghi %r2, 4096
|
|
; CHECK: ddb %f0, 0(%r2)
|
|
; CHECK: br %r14
|
|
%ptr = getelementptr double, double *%base, i64 512
|
|
%f2 = load double , double *%ptr
|
|
%res = fdiv double %f1, %f2
|
|
ret double %res
|
|
}
|
|
|
|
; Check negative displacements, which also need separate address logic.
|
|
define double @f5(double %f1, double *%base) {
|
|
; CHECK-LABEL: f5:
|
|
; CHECK: aghi %r2, -8
|
|
; CHECK: ddb %f0, 0(%r2)
|
|
; CHECK: br %r14
|
|
%ptr = getelementptr double, double *%base, i64 -1
|
|
%f2 = load double , double *%ptr
|
|
%res = fdiv double %f1, %f2
|
|
ret double %res
|
|
}
|
|
|
|
; Check that DDB allows indices.
|
|
define double @f6(double %f1, double *%base, i64 %index) {
|
|
; CHECK-LABEL: f6:
|
|
; CHECK: sllg %r1, %r3, 3
|
|
; CHECK: ddb %f0, 800(%r1,%r2)
|
|
; CHECK: br %r14
|
|
%ptr1 = getelementptr double, double *%base, i64 %index
|
|
%ptr2 = getelementptr double, double *%ptr1, i64 100
|
|
%f2 = load double , double *%ptr2
|
|
%res = fdiv double %f1, %f2
|
|
ret double %res
|
|
}
|
|
|
|
; Check that divisions of spilled values can use DDB rather than DDBR.
|
|
define double @f7(double *%ptr0) {
|
|
; CHECK-LABEL: f7:
|
|
; CHECK: brasl %r14, foo@PLT
|
|
; CHECK-SCALAR: ddb %f0, 160(%r15)
|
|
; CHECK: br %r14
|
|
%ptr1 = getelementptr double, double *%ptr0, i64 2
|
|
%ptr2 = getelementptr double, double *%ptr0, i64 4
|
|
%ptr3 = getelementptr double, double *%ptr0, i64 6
|
|
%ptr4 = getelementptr double, double *%ptr0, i64 8
|
|
%ptr5 = getelementptr double, double *%ptr0, i64 10
|
|
%ptr6 = getelementptr double, double *%ptr0, i64 12
|
|
%ptr7 = getelementptr double, double *%ptr0, i64 14
|
|
%ptr8 = getelementptr double, double *%ptr0, i64 16
|
|
%ptr9 = getelementptr double, double *%ptr0, i64 18
|
|
%ptr10 = getelementptr double, double *%ptr0, i64 20
|
|
|
|
%val0 = load double , double *%ptr0
|
|
%val1 = load double , double *%ptr1
|
|
%val2 = load double , double *%ptr2
|
|
%val3 = load double , double *%ptr3
|
|
%val4 = load double , double *%ptr4
|
|
%val5 = load double , double *%ptr5
|
|
%val6 = load double , double *%ptr6
|
|
%val7 = load double , double *%ptr7
|
|
%val8 = load double , double *%ptr8
|
|
%val9 = load double , double *%ptr9
|
|
%val10 = load double , double *%ptr10
|
|
|
|
%ret = call double @foo()
|
|
|
|
%div0 = fdiv double %ret, %val0
|
|
%div1 = fdiv double %div0, %val1
|
|
%div2 = fdiv double %div1, %val2
|
|
%div3 = fdiv double %div2, %val3
|
|
%div4 = fdiv double %div3, %val4
|
|
%div5 = fdiv double %div4, %val5
|
|
%div6 = fdiv double %div5, %val6
|
|
%div7 = fdiv double %div6, %val7
|
|
%div8 = fdiv double %div7, %val8
|
|
%div9 = fdiv double %div8, %val9
|
|
%div10 = fdiv double %div9, %val10
|
|
|
|
ret double %div10
|
|
}
|