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.
45 lines
1.6 KiB
LLVM
45 lines
1.6 KiB
LLVM
; Test f128 strict comparisons on z14.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z14 | FileCheck %s
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; There is no memory form of 128-bit comparison.
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define i64 @f1(i64 %a, i64 %b, ptr %ptr1, ptr %ptr2) #0 {
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; CHECK-LABEL: f1:
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; CHECK-DAG: vl [[REG1:%v[0-9]+]], 0(%r4)
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; CHECK-DAG: vl [[REG2:%v[0-9]+]], 0(%r5)
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; CHECK: wfcxb [[REG1]], [[REG2]]
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; CHECK-NEXT: locgrne %r2, %r3
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; CHECK: br %r14
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%f1 = load fp128, ptr %ptr1
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%f2 = load fp128, ptr %ptr2
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%cond = call i1 @llvm.experimental.constrained.fcmp.f128(
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fp128 %f1, fp128 %f2,
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metadata !"oeq",
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metadata !"fpexcept.strict") #0
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%res = select i1 %cond, i64 %a, i64 %b
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ret i64 %res
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}
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; Check comparison with zero -- it is not worthwhile to copy to
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; FP pairs just so we can use LTXBR, so simply load up a zero.
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define i64 @f2(i64 %a, i64 %b, ptr %ptr) #0 {
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; CHECK-LABEL: f2:
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; CHECK-DAG: vl [[REG1:%v[0-9]+]], 0(%r4)
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; CHECK-DAG: vzero [[REG2:%v[0-9]+]]
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; CHECK: wfcxb [[REG1]], [[REG2]]
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; CHECK-NEXT: locgrne %r2, %r3
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; CHECK: br %r14
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%f = load fp128, ptr %ptr
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%cond = call i1 @llvm.experimental.constrained.fcmp.f128(
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fp128 %f, fp128 0xL00000000000000000000000000000000,
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metadata !"oeq",
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metadata !"fpexcept.strict") #0
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%res = select i1 %cond, i64 %a, i64 %b
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ret i64 %res
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}
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attributes #0 = { strictfp }
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declare i1 @llvm.experimental.constrained.fcmp.f128(fp128, fp128, metadata, metadata)
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