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171 lines
5.5 KiB
171 lines
5.5 KiB
; Test extensions of f64 to f128.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
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; Check register extension.
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define void @f1(fp128 *%dst, double %val) {
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; CHECK-LABEL: f1:
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; CHECK: lxdbr %f0, %f0
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; CHECK: std %f0, 0(%r2)
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; CHECK: std %f2, 8(%r2)
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; CHECK: br %r14
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%res = fpext double %val to fp128
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store fp128 %res, fp128 *%dst
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ret void
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}
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; Check the low end of the LXDB range.
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define void @f2(fp128 *%dst, double *%ptr) {
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; CHECK-LABEL: f2:
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; CHECK: lxdb %f0, 0(%r3)
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; CHECK: std %f0, 0(%r2)
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; CHECK: std %f2, 8(%r2)
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; CHECK: br %r14
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%val = load double, double *%ptr
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%res = fpext double %val to fp128
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store fp128 %res, fp128 *%dst
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ret void
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}
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; Check the high end of the aligned LXDB range.
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define void @f3(fp128 *%dst, double *%base) {
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; CHECK-LABEL: f3:
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; CHECK: lxdb %f0, 4088(%r3)
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; CHECK: std %f0, 0(%r2)
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; CHECK: std %f2, 8(%r2)
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; CHECK: br %r14
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%ptr = getelementptr double, double *%base, i64 511
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%val = load double, double *%ptr
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%res = fpext double %val to fp128
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store fp128 %res, fp128 *%dst
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ret void
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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 void @f4(fp128 *%dst, double *%base) {
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; CHECK-LABEL: f4:
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; CHECK: aghi %r3, 4096
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; CHECK: lxdb %f0, 0(%r3)
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; CHECK: std %f0, 0(%r2)
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; CHECK: std %f2, 8(%r2)
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; CHECK: br %r14
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%ptr = getelementptr double, double *%base, i64 512
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%val = load double, double *%ptr
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%res = fpext double %val to fp128
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store fp128 %res, fp128 *%dst
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ret void
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}
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; Check negative displacements, which also need separate address logic.
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define void @f5(fp128 *%dst, double *%base) {
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; CHECK-LABEL: f5:
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; CHECK: aghi %r3, -8
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; CHECK: lxdb %f0, 0(%r3)
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; CHECK: std %f0, 0(%r2)
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; CHECK: std %f2, 8(%r2)
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; CHECK: br %r14
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%ptr = getelementptr double, double *%base, i64 -1
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%val = load double, double *%ptr
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%res = fpext double %val to fp128
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store fp128 %res, fp128 *%dst
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ret void
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}
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; Check that LXDB allows indices.
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define void @f6(fp128 *%dst, double *%base, i64 %index) {
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; CHECK-LABEL: f6:
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; CHECK: sllg %r1, %r4, 3
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; CHECK: lxdb %f0, 800(%r1,%r3)
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; CHECK: std %f0, 0(%r2)
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; CHECK: std %f2, 8(%r2)
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; CHECK: br %r14
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%ptr1 = getelementptr double, double *%base, i64 %index
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%ptr2 = getelementptr double, double *%ptr1, i64 100
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%val = load double, double *%ptr2
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%res = fpext double %val to fp128
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store fp128 %res, fp128 *%dst
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ret void
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}
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; Test a case where we spill the source of at least one LXDBR. We want
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; to use LXDB if possible.
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define void @f7(fp128 *%ptr1, double *%ptr2) {
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; CHECK-LABEL: f7:
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; CHECK: lxdb {{%f[0-9]+}}, 160(%r15)
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; CHECK: br %r14
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%val0 = load volatile double, double *%ptr2
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%val1 = load volatile double, double *%ptr2
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%val2 = load volatile double, double *%ptr2
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%val3 = load volatile double, double *%ptr2
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%val4 = load volatile double, double *%ptr2
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%val5 = load volatile double, double *%ptr2
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%val6 = load volatile double, double *%ptr2
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%val7 = load volatile double, double *%ptr2
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%val8 = load volatile double, double *%ptr2
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%val9 = load volatile double, double *%ptr2
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%val10 = load volatile double, double *%ptr2
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%val11 = load volatile double, double *%ptr2
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%val12 = load volatile double, double *%ptr2
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%val13 = load volatile double, double *%ptr2
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%val14 = load volatile double, double *%ptr2
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%val15 = load volatile double, double *%ptr2
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%val16 = load volatile double, double *%ptr2
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%ext0 = fpext double %val0 to fp128
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%ext1 = fpext double %val1 to fp128
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%ext2 = fpext double %val2 to fp128
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%ext3 = fpext double %val3 to fp128
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%ext4 = fpext double %val4 to fp128
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%ext5 = fpext double %val5 to fp128
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%ext6 = fpext double %val6 to fp128
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%ext7 = fpext double %val7 to fp128
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%ext8 = fpext double %val8 to fp128
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%ext9 = fpext double %val9 to fp128
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%ext10 = fpext double %val10 to fp128
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%ext11 = fpext double %val11 to fp128
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%ext12 = fpext double %val12 to fp128
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%ext13 = fpext double %val13 to fp128
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%ext14 = fpext double %val14 to fp128
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%ext15 = fpext double %val15 to fp128
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%ext16 = fpext double %val16 to fp128
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store volatile double %val0, double *%ptr2
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store volatile double %val1, double *%ptr2
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store volatile double %val2, double *%ptr2
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store volatile double %val3, double *%ptr2
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store volatile double %val4, double *%ptr2
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store volatile double %val5, double *%ptr2
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store volatile double %val6, double *%ptr2
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store volatile double %val7, double *%ptr2
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store volatile double %val8, double *%ptr2
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store volatile double %val9, double *%ptr2
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store volatile double %val10, double *%ptr2
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store volatile double %val11, double *%ptr2
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store volatile double %val12, double *%ptr2
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store volatile double %val13, double *%ptr2
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store volatile double %val14, double *%ptr2
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store volatile double %val15, double *%ptr2
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store volatile double %val16, double *%ptr2
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store volatile fp128 %ext0, fp128 *%ptr1
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store volatile fp128 %ext1, fp128 *%ptr1
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store volatile fp128 %ext2, fp128 *%ptr1
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store volatile fp128 %ext3, fp128 *%ptr1
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store volatile fp128 %ext4, fp128 *%ptr1
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store volatile fp128 %ext5, fp128 *%ptr1
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store volatile fp128 %ext6, fp128 *%ptr1
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store volatile fp128 %ext7, fp128 *%ptr1
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store volatile fp128 %ext8, fp128 *%ptr1
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store volatile fp128 %ext9, fp128 *%ptr1
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store volatile fp128 %ext10, fp128 *%ptr1
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store volatile fp128 %ext11, fp128 *%ptr1
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store volatile fp128 %ext12, fp128 *%ptr1
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store volatile fp128 %ext13, fp128 *%ptr1
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store volatile fp128 %ext14, fp128 *%ptr1
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store volatile fp128 %ext15, fp128 *%ptr1
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store volatile fp128 %ext16, fp128 *%ptr1
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ret void
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}
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