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