fp-strict-conv-08.ll
1.66 KB
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; Test strict conversions of unsigned i64s to floating-point values (z10 only).
;
; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z10 | FileCheck %s
declare float @llvm.experimental.constrained.uitofp.f32.i64(i64, metadata, metadata)
declare double @llvm.experimental.constrained.uitofp.f64.i64(i64, metadata, metadata)
declare fp128 @llvm.experimental.constrained.uitofp.f128.i64(i64, metadata, metadata)
; Test i64->f32. There's no native support for unsigned i64-to-fp conversions,
; but we should be able to implement them using signed i64-to-fp conversions.
define float @f1(i64 %i) #0 {
; CHECK-LABEL: f1:
; CHECK: cegbr
; CHECK: aebr
; CHECK: br %r14
%conv = call float @llvm.experimental.constrained.uitofp.f32.i64(i64 %i,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
ret float %conv
}
; Test i64->f64.
define double @f2(i64 %i) #0 {
; CHECK-LABEL: f2:
; CHECK: ldgr
; CHECK: adbr
; CHECK: br %r14
%conv = call double @llvm.experimental.constrained.uitofp.f64.i64(i64 %i,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
ret double %conv
}
; Test i64->f128.
define void @f3(i64 %i, fp128 *%dst) #0 {
; CHECK-LABEL: f3:
; CHECK: cxgbr
; CHECK: axbr
; CHECK: br %r14
%conv = call fp128 @llvm.experimental.constrained.uitofp.f128.i64(i64 %i,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
store fp128 %conv, fp128 *%dst
ret void
}
attributes #0 = { strictfp }