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.
129 lines
3.4 KiB
LLVM
129 lines
3.4 KiB
LLVM
; Test 16-bit signed ordered 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 comparisons with 0.
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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: chhsi 0(%r2), 0
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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 i16, ptr %ptr
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%cond = icmp slt i16 %val, 0
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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 comparisons with 1.
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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: chhsi 0(%r2), 0
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; CHECK-NEXT: bler %r14
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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%val = load i16, ptr %ptr
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%cond = icmp slt i16 %val, 1
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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 a value near the high end of the signed 16-bit range.
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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: chhsi 0(%r2), 32766
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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 i16, ptr %ptr
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%cond = icmp slt i16 %val, 32766
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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 comparisons with -1.
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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: chhsi 0(%r2), -1
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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 i16, ptr %ptr
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%cond = icmp slt i16 %val, -1
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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 a value near the low end of the 16-bit signed 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: chhsi 0(%r2), -32766
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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 i16, ptr %ptr
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%cond = icmp slt i16 %val, -32766
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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 CHHSI range.
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define double @f6(double %a, double %b, i16 %i1, ptr %base) {
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; CHECK-LABEL: f6:
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; CHECK: chhsi 4094(%r3), 0
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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 i16, ptr %base, i64 2047
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%val = load i16, ptr %ptr
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%cond = icmp slt i16 %val, 0
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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 halfword up, which needs separate address logic,
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define double @f7(double %a, double %b, ptr %base) {
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; CHECK-LABEL: f7:
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; CHECK: aghi %r2, 4096
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; CHECK: chhsi 0(%r2), 0
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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 i16, ptr %base, i64 2048
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%val = load i16, ptr %ptr
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%cond = icmp slt i16 %val, 0
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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 @f8(double %a, double %b, ptr %base) {
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; CHECK-LABEL: f8:
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; CHECK: aghi %r2, -2
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; CHECK: chhsi 0(%r2), 0
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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 i16, ptr %base, i64 -1
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%val = load i16, ptr %ptr
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%cond = icmp slt i16 %val, 0
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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 CHHSI does not allow indices.
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define double @f9(double %a, double %b, i64 %base, i64 %index) {
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; CHECK-LABEL: f9:
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; CHECK: agr {{%r2, %r3|%r3, %r2}}
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; CHECK: chhsi 0({{%r[23]}}), 0
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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 i16, ptr %ptr
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%cond = icmp slt i16 %val, 0
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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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