Jinsong Ji 042a6564d3 [PowerPC] Guard XSRSP in P8 for FastISel
This is exposed by enabling FastIsel on 64bit AIX.
We are generating XSRSP regardless of the arch,
which may be wrong when -mcpu=pwr7.

The fix is to guard the generation in P8 only.

Reviewed By: qiucf

Differential Revision: https://reviews.llvm.org/D109365
2021-09-07 15:17:51 +00:00

18 lines
508 B
LLVM

; RUN: llc -mcpu=generic -mtriple=powerpc64le-unknown-unknown -O0 < %s \
; RUN: -verify-machineinstrs | FileCheck %s --check-prefix=GENERIC
; RUN: llc -mcpu=ppc -mtriple=powerpc64le-unknown-unknown -O0 < %s \
; RUN: -verify-machineinstrs | FileCheck %s
; RUN: llc -mcpu=pwr7 -mtriple=powerpc64-ibm-aix-xcoff -O0 < %s \
; RUN: -verify-machineinstrs | FileCheck %s
define float @testRSP(double %x) {
entry:
%0 = fptrunc double %x to float
ret float %0
; CHECK: frsp 1, 1
; GENERIC: xsrsp 1, 1
}