derek.holloway
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93 lines
3.0 KiB
LLVM
93 lines
3.0 KiB
LLVM
; Test strict extensions of f32 to f64.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
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declare double @llvm.experimental.constrained.fpext.f64.f16(half, metadata)
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declare double @llvm.experimental.constrained.fpext.f64.f32(float, metadata)
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; Check register extension.
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define double @f0(half %val) #0 {
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; CHECK-LABEL: f0:
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; CHECK: brasl %r14, __extendhfdf2@PLT
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; CHECK: br %r14
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%res = call double @llvm.experimental.constrained.fpext.f64.f16(half %val,
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metadata !"fpexcept.strict") #0
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ret double %res
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}
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; Check register extension.
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define double @f1(float %val) #0 {
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; CHECK-LABEL: f1:
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; CHECK: ldebr %f0, %f0
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; CHECK: br %r14
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%res = call double @llvm.experimental.constrained.fpext.f64.f32(float %val,
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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 LDEB range.
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define double @f2(ptr %ptr) #0 {
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; CHECK-LABEL: f2:
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; CHECK: ldeb %f0, 0(%r2)
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; CHECK: br %r14
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%val = load float, ptr %ptr
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%res = call double @llvm.experimental.constrained.fpext.f64.f32(float %val,
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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 LDEB range.
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define double @f3(ptr %base) #0 {
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; CHECK-LABEL: f3:
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; CHECK: ldeb %f0, 4092(%r2)
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; CHECK: br %r14
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%ptr = getelementptr float, ptr %base, i64 1023
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%val = load float, ptr %ptr
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%res = call double @llvm.experimental.constrained.fpext.f64.f32(float %val,
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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 word 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(ptr %base) #0 {
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; CHECK-LABEL: f4:
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; CHECK: aghi %r2, 4096
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; CHECK: ldeb %f0, 0(%r2)
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; CHECK: br %r14
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%ptr = getelementptr float, ptr %base, i64 1024
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%val = load float, ptr %ptr
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%res = call double @llvm.experimental.constrained.fpext.f64.f32(float %val,
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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(ptr %base) #0 {
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; CHECK-LABEL: f5:
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; CHECK: aghi %r2, -4
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; CHECK: ldeb %f0, 0(%r2)
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; CHECK: br %r14
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%ptr = getelementptr float, ptr %base, i64 -1
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%val = load float, ptr %ptr
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%res = call double @llvm.experimental.constrained.fpext.f64.f32(float %val,
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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 LDEB allows indices.
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define double @f6(ptr %base, i64 %index) #0 {
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; CHECK-LABEL: f6:
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; CHECK: sllg %r1, %r3, 2
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; CHECK: ldeb %f0, 400(%r1,%r2)
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; CHECK: br %r14
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%ptr1 = getelementptr float, ptr %base, i64 %index
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%ptr2 = getelementptr float, ptr %ptr1, i64 100
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%val = load float, ptr %ptr2
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%res = call double @llvm.experimental.constrained.fpext.f64.f32(float %val,
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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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