llvm-6502/test/CodeGen/SystemZ/fp-conv-08.ll
Richard Sandiford 6b6889d87b [SystemZ] Add support for z196 float<->unsigned conversions
These complement the older float<->signed instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204451 91177308-0d34-0410-b5e6-96231b3b80d8
2014-03-21 10:56:30 +00:00

36 lines
812 B
LLVM

; Test conversions of unsigned i64s to floating-point values (z10 only).
;
; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z10 | FileCheck %s
; 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) {
; CHECK-LABEL: f1:
; CHECK: cegbr
; CHECK: aebr
; CHECK: br %r14
%conv = uitofp i64 %i to float
ret float %conv
}
; Test i64->f64.
define double @f2(i64 %i) {
; CHECK-LABEL: f2:
; CHECK: ldgr
; CHECK: adbr
; CHECK: br %r14
%conv = uitofp i64 %i to double
ret double %conv
}
; Test i64->f128.
define void @f3(i64 %i, fp128 *%dst) {
; CHECK-LABEL: f3:
; CHECK: cxgbr
; CHECK: axbr
; CHECK: br %r14
%conv = uitofp i64 %i to fp128
store fp128 %conv, fp128 *%dst
ret void
}