llvm/test/CodeGen/PowerPC/i64-to-float.ll
Hal Finkel b6cbecd272 [PowerPC] Make use of VSX f64 <-> i64 conversion instructions
When VSX is available, these instructions should be used in preference to the
older variants that only have access to the scalar floating-point registers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204559 91177308-0d34-0410-b5e6-96231b3b80d8
2014-03-23 05:35:00 +00:00

78 lines
1.6 KiB
LLVM

; RUN: llc < %s -mtriple=powerpc64-unknown-linux-gnu -mcpu=a2 | FileCheck %s
; RUN: llc < %s -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr7 -mattr=+vsx | FileCheck -check-prefix=CHECK-VSX %s
target datalayout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-f128:128:128-v128:128:128-n32:64"
target triple = "powerpc64-unknown-linux-gnu"
define float @foo(i64 %a) nounwind {
entry:
%x = sitofp i64 %a to float
ret float %x
; CHECK: @foo
; CHECK: std 3,
; CHECK: lfd [[REG:[0-9]+]],
; CHECK: fcfids 1, [[REG]]
; CHECK: blr
; CHECK-VSX: @foo
; CHECK-VSX: std 3,
; CHECK-VSX: lxsdx [[REG:[0-9]+]],
; CHECK-VSX: fcfids 1, [[REG]]
; CHECK-VSX: blr
}
define double @goo(i64 %a) nounwind {
entry:
%x = sitofp i64 %a to double
ret double %x
; CHECK: @goo
; CHECK: std 3,
; CHECK: lfd [[REG:[0-9]+]],
; CHECK: fcfid 1, [[REG]]
; CHECK: blr
; CHECK-VSX: @goo
; CHECK-VSX: std 3,
; CHECK-VSX: lxsdx [[REG:[0-9]+]],
; CHECK-VSX: xscvsxddp 1, [[REG]]
; CHECK-VSX: blr
}
define float @foou(i64 %a) nounwind {
entry:
%x = uitofp i64 %a to float
ret float %x
; CHECK: @foou
; CHECK: std 3,
; CHECK: lfd [[REG:[0-9]+]],
; CHECK: fcfidus 1, [[REG]]
; CHECK: blr
; CHECK-VSX: @foou
; CHECK-VSX: std 3,
; CHECK-VSX: lxsdx [[REG:[0-9]+]],
; CHECK-VSX: fcfidus 1, [[REG]]
; CHECK-VSX: blr
}
define double @goou(i64 %a) nounwind {
entry:
%x = uitofp i64 %a to double
ret double %x
; CHECK: @goou
; CHECK: std 3,
; CHECK: lfd [[REG:[0-9]+]],
; CHECK: fcfidu 1, [[REG]]
; CHECK: blr
; CHECK-VSX: @goou
; CHECK-VSX: std 3,
; CHECK-VSX: lxsdx [[REG:[0-9]+]],
; CHECK-VSX: xscvuxddp 1, [[REG]]
; CHECK-VSX: blr
}