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.
140 lines
3.8 KiB
LLVM
140 lines
3.8 KiB
LLVM
; Test 64-bit unsigned comparisons between memory and a constant.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
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; Check ordered comparisons with a constant near the low end of the unsigned
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; 16-bit range.
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define double @f1(double %a, double %b, ptr %ptr) {
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; CHECK-LABEL: f1:
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; CHECK: clghsi 0(%r2), 2
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; CHECK-NEXT: blr %r14
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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%val = load i64, ptr %ptr
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%cond = icmp ult i64 %val, 2
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; Check ordered comparisons with the high end of the unsigned 16-bit range.
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define double @f2(double %a, double %b, ptr %ptr) {
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; CHECK-LABEL: f2:
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; CHECK: clghsi 0(%r2), 65535
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; CHECK-NEXT: blr %r14
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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%val = load i64, ptr %ptr
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%cond = icmp ult i64 %val, 65535
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; Check the next value up, which can't use CLGHSI.
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define double @f3(double %a, double %b, ptr %ptr) {
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; CHECK-LABEL: f3:
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; CHECK-NOT: clghsi
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; CHECK: br %r14
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%val = load i64, ptr %ptr
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%cond = icmp ult i64 %val, 65536
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; Check equality comparisons with 32768, the lowest value for which
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; we prefer CLGHSI to CGHSI.
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define double @f4(double %a, double %b, ptr %ptr) {
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; CHECK-LABEL: f4:
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; CHECK: clghsi 0(%r2), 32768
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; CHECK-NEXT: ber %r14
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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%val = load i64, ptr %ptr
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%cond = icmp eq i64 %val, 32768
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; Check equality comparisons with the high end of the unsigned 16-bit range.
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define double @f5(double %a, double %b, ptr %ptr) {
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; CHECK-LABEL: f5:
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; CHECK: clghsi 0(%r2), 65535
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; CHECK-NEXT: ber %r14
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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%val = load i64, ptr %ptr
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%cond = icmp eq i64 %val, 65535
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; Check the next value up, which can't use CLGHSI.
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define double @f6(double %a, double %b, ptr %ptr) {
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; CHECK-LABEL: f6:
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; CHECK-NOT: clghsi
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; CHECK: br %r14
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%val = load i64, ptr %ptr
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%cond = icmp eq i64 %val, 65536
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; Check the high end of the CLGHSI range.
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define double @f7(double %a, double %b, i64 %i1, ptr %base) {
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; CHECK-LABEL: f7:
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; CHECK: clghsi 4088(%r3), 2
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; CHECK-NEXT: blr %r14
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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%ptr = getelementptr i64, ptr %base, i64 511
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%val = load i64, ptr %ptr
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%cond = icmp ult i64 %val, 2
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%res = select i1 %cond, double %a, double %b
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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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define double @f8(double %a, double %b, ptr %base) {
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; CHECK-LABEL: f8:
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; CHECK: aghi %r2, 4096
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; CHECK: clghsi 0(%r2), 2
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; CHECK-NEXT: blr %r14
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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%ptr = getelementptr i64, ptr %base, i64 512
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%val = load i64, ptr %ptr
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%cond = icmp ult i64 %val, 2
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; Check negative offsets, which also need separate address logic.
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define double @f9(double %a, double %b, ptr %base) {
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; CHECK-LABEL: f9:
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; CHECK: aghi %r2, -8
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; CHECK: clghsi 0(%r2), 2
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; CHECK-NEXT: blr %r14
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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%ptr = getelementptr i64, ptr %base, i64 -1
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%val = load i64, ptr %ptr
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%cond = icmp ult i64 %val, 2
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; Check that CLGHSI does not allow indices.
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define double @f10(double %a, double %b, i64 %base, i64 %index) {
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; CHECK-LABEL: f10:
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; CHECK: agr {{%r2, %r3|%r3, %r2}}
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; CHECK: clghsi 0({{%r[23]}}), 2
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; CHECK-NEXT: blr %r14
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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%add = add i64 %base, %index
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%ptr = inttoptr i64 %add to ptr
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%val = load i64, ptr %ptr
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%cond = icmp ult i64 %val, 2
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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