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.
152 lines
4.0 KiB
LLVM
152 lines
4.0 KiB
LLVM
; Test 128-bit floating-point loads.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu -verify-machineinstrs | FileCheck %s
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; Check loads with no offset.
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define double @f1(i64 %src) {
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; CHECK-LABEL: f1:
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; CHECK: ld %f0, 0(%r2)
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; CHECK: ld %f2, 8(%r2)
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; CHECK: br %r14
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%ptr = inttoptr i64 %src to ptr
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%val = load fp128, ptr %ptr
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%trunc = fptrunc fp128 %val to double
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ret double %trunc
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}
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; Check the highest aligned offset that allows LD for both halves.
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define double @f2(i64 %src) {
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; CHECK-LABEL: f2:
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; CHECK: ld %f0, 4080(%r2)
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; CHECK: ld %f2, 4088(%r2)
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; CHECK: br %r14
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%add = add i64 %src, 4080
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%ptr = inttoptr i64 %add to ptr
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%val = load fp128, ptr %ptr
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%trunc = fptrunc fp128 %val to double
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ret double %trunc
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}
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; Check the next doubleword up, which requires a mixture of LD and LDY.
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define double @f3(i64 %src) {
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; CHECK-LABEL: f3:
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; CHECK: ld %f0, 4088(%r2)
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; CHECK: ldy %f2, 4096(%r2)
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; CHECK: br %r14
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%add = add i64 %src, 4088
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%ptr = inttoptr i64 %add to ptr
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%val = load fp128, ptr %ptr
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%trunc = fptrunc fp128 %val to double
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ret double %trunc
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}
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; Check the next doubleword after that, which requires LDY for both halves.
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define double @f4(i64 %src) {
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; CHECK-LABEL: f4:
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; CHECK: ldy %f0, 4096(%r2)
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; CHECK: ldy %f2, 4104(%r2)
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; CHECK: br %r14
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%add = add i64 %src, 4096
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%ptr = inttoptr i64 %add to ptr
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%val = load fp128, ptr %ptr
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%trunc = fptrunc fp128 %val to double
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ret double %trunc
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}
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; Check the highest aligned offset that allows LDY for both halves.
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define double @f5(i64 %src) {
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; CHECK-LABEL: f5:
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; CHECK: ldy %f0, 524272(%r2)
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; CHECK: ldy %f2, 524280(%r2)
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; CHECK: br %r14
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%add = add i64 %src, 524272
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%ptr = inttoptr i64 %add to ptr
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%val = load fp128, ptr %ptr
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%trunc = fptrunc fp128 %val to double
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ret double %trunc
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}
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; Check the next doubleword up, which requires separate address logic.
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; Other sequences besides this one would be OK.
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define double @f6(i64 %src) {
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; CHECK-LABEL: f6:
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; CHECK: lay %r1, 524280(%r2)
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; CHECK: ld %f0, 0(%r1)
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; CHECK: ld %f2, 8(%r1)
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; CHECK: br %r14
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%add = add i64 %src, 524280
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%ptr = inttoptr i64 %add to ptr
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%val = load fp128, ptr %ptr
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%trunc = fptrunc fp128 %val to double
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ret double %trunc
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}
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; Check the highest aligned negative offset, which needs a combination of
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; LDY and LD.
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define double @f7(i64 %src) {
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; CHECK-LABEL: f7:
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; CHECK: ldy %f0, -8(%r2)
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; CHECK: ld %f2, 0(%r2)
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; CHECK: br %r14
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%add = add i64 %src, -8
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%ptr = inttoptr i64 %add to ptr
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%val = load fp128, ptr %ptr
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%trunc = fptrunc fp128 %val to double
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ret double %trunc
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}
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; Check the next doubleword down, which requires LDY for both halves.
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define double @f8(i64 %src) {
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; CHECK-LABEL: f8:
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; CHECK: ldy %f0, -16(%r2)
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; CHECK: ldy %f2, -8(%r2)
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; CHECK: br %r14
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%add = add i64 %src, -16
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%ptr = inttoptr i64 %add to ptr
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%val = load fp128, ptr %ptr
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%trunc = fptrunc fp128 %val to double
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ret double %trunc
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}
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; Check the lowest offset that allows LDY for both halves.
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define double @f9(i64 %src) {
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; CHECK-LABEL: f9:
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; CHECK: ldy %f0, -524288(%r2)
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; CHECK: ldy %f2, -524280(%r2)
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; CHECK: br %r14
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%add = add i64 %src, -524288
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%ptr = inttoptr i64 %add to ptr
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%val = load fp128, ptr %ptr
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%trunc = fptrunc fp128 %val to double
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ret double %trunc
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}
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; Check the next doubleword down, which requires separate address logic.
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; Other sequences besides this one would be OK.
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define double @f10(i64 %src) {
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; CHECK-LABEL: f10:
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; CHECK: agfi %r2, -524296
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; CHECK: ld %f0, 0(%r2)
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; CHECK: ld %f2, 8(%r2)
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; CHECK: br %r14
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%add = add i64 %src, -524296
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%ptr = inttoptr i64 %add to ptr
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%val = load fp128, ptr %ptr
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%trunc = fptrunc fp128 %val to double
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ret double %trunc
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}
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; Check that indices are allowed.
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define double @f11(i64 %src, i64 %index) {
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; CHECK-LABEL: f11:
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; CHECK: ld %f0, 4088({{%r2,%r3|%r3,%r2}})
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; CHECK: ldy %f2, 4096({{%r2,%r3|%r3,%r2}})
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; CHECK: br %r14
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%add1 = add i64 %src, %index
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%add2 = add i64 %add1, 4088
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%ptr = inttoptr i64 %add2 to ptr
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%val = load fp128, ptr %ptr
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%trunc = fptrunc fp128 %val to double
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ret double %trunc
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}
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