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104 lines
3.4 KiB
LLVM
104 lines
3.4 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z10 | FileCheck %s
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; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z13 | FileCheck %s
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;
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; Test strict 64-bit square root.
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;
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declare double @llvm.experimental.constrained.sqrt.f64(double, metadata, metadata)
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; Check register square root.
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define double @f1(double %val) #0 {
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; CHECK-LABEL: f1:
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; CHECK: # %bb.0:
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; CHECK-NEXT: sqdbr %f0, %f0
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; CHECK-NEXT: br %r14
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%res = call double @llvm.experimental.constrained.sqrt.f64(
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double %val,
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metadata !"round.dynamic",
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metadata !"fpexcept.strict") #0
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ret double %res
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}
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; Check the low end of the SQDB range.
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define double @f2(double *%ptr) #0 {
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; CHECK-LABEL: f2:
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; CHECK: # %bb.0:
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; CHECK-NEXT: sqdb %f0, 0(%r2)
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; CHECK-NEXT: br %r14
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%val = load double, double *%ptr
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%res = call double @llvm.experimental.constrained.sqrt.f64(
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double %val,
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metadata !"round.dynamic",
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metadata !"fpexcept.strict") #0
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ret double %res
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}
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; Check the high end of the aligned SQDB range.
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define double @f3(double *%base) #0 {
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; CHECK-LABEL: f3:
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; CHECK: # %bb.0:
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; CHECK-NEXT: sqdb %f0, 4088(%r2)
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; CHECK-NEXT: br %r14
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%ptr = getelementptr double, double *%base, i64 511
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%val = load double, double *%ptr
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%res = call double @llvm.experimental.constrained.sqrt.f64(
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double %val,
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metadata !"round.dynamic",
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metadata !"fpexcept.strict") #0
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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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; Other sequences besides this one would be OK.
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define double @f4(double *%base) #0 {
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; CHECK-LABEL: f4:
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; CHECK: # %bb.0:
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; CHECK-NEXT: aghi %r2, 4096
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; CHECK-NEXT: sqdb %f0, 0(%r2)
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; CHECK-NEXT: br %r14
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%ptr = getelementptr double, double *%base, i64 512
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%val = load double, double *%ptr
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%res = call double @llvm.experimental.constrained.sqrt.f64(
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double %val,
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metadata !"round.dynamic",
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metadata !"fpexcept.strict") #0
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ret double %res
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}
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; Check negative displacements, which also need separate address logic.
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define double @f5(double *%base) #0 {
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; CHECK-LABEL: f5:
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; CHECK: # %bb.0:
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; CHECK-NEXT: aghi %r2, -8
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; CHECK-NEXT: sqdb %f0, 0(%r2)
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; CHECK-NEXT: br %r14
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%ptr = getelementptr double, double *%base, i64 -1
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%val = load double, double *%ptr
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%res = call double @llvm.experimental.constrained.sqrt.f64(
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double %val,
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metadata !"round.dynamic",
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metadata !"fpexcept.strict") #0
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ret double %res
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}
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; Check that SQDB allows indices.
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define double @f6(double *%base, i64 %index) #0 {
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; CHECK-LABEL: f6:
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; CHECK: # %bb.0:
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; CHECK-NEXT: sllg %r1, %r3, 3
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; CHECK-NEXT: sqdb %f0, 800(%r1,%r2)
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; CHECK-NEXT: br %r14
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%ptr1 = getelementptr double, double *%base, i64 %index
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%ptr2 = getelementptr double, double *%ptr1, i64 100
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%val = load double, double *%ptr2
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%res = call double @llvm.experimental.constrained.sqrt.f64(
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double %val,
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metadata !"round.dynamic",
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metadata !"fpexcept.strict") #0
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ret double %res
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}
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attributes #0 = { strictfp }
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