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[PowerPC] Temporarily disable VSX for PowerPC fast-isel tests 

Patch by Bill Seurer; some comment formatting changes by me.

There are a few PowerPC test cases for FastISel support that currently
fail with VSX support enabled.  The temporary workaround under
discussion in http://reviews.llvm.org/D5362 helps, but the tests still
fail because they specify -fast-isel-abort, and the VSX workaround
punts back to SelectionDAG.  We have plans to fix FastISel permanently
for VSX, but until that's in place these tests are preventing us from
enabling VSX by default.  Therefore we are adding -mattr=-vsx to these
tests until the full support is ready.

llvm-svn: 220172
This commit is contained in:
Bill Schmidt 2014-10-19 20:48:47 +00:00
parent fff860979d
commit 87982a1e9b
5 changed files with 27 additions and 8 deletions
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6
llvm/test/CodeGen/PowerPC/fast-isel-call.ll
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@ -1,4 +1,8 @@
; RUN: llc < %s -O0 -verify-machineinstrs -fast-isel-abort -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr7 | FileCheck %s --check-prefix=ELF64
; FIXME: FastISel currently returns false if it hits code that uses VSX
; registers and with -fast-isel-abort turned on the test case will then fail.
; When fastisel better supports VSX fix up this test case.
;
; RUN: llc < %s -O0 -verify-machineinstrs -mattr=-vsx -fast-isel-abort -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr7 | FileCheck %s --check-prefix=ELF64
define i32 @t1(i8 signext %a) nounwind {
%1 = sext i8 %a to i32

7
llvm/test/CodeGen/PowerPC/fast-isel-cmp-imm.ll
View File

@ -1,5 +1,8 @@
; RUN: llc < %s -O0 -verify-machineinstrs -fast-isel-abort -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr7 | FileCheck %s --check-prefix=ELF64
; FIXME: FastISel currently returns false if it hits code that uses VSX
; registers and with -fast-isel-abort turned on the test case will then fail.
; When fastisel better supports VSX fix up this test case.
;
; RUN: llc < %s -O0 -verify-machineinstrs -fast-isel-abort -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr7 -mattr=-vsx | FileCheck %s --check-prefix=ELF64
define void @t1a(float %a) uwtable ssp {
entry:
; ELF64: t1a

10
llvm/test/CodeGen/PowerPC/fast-isel-conversion.ll
View File

@ -1,6 +1,10 @@
; RUN: llc < %s -O0 -verify-machineinstrs -fast-isel-abort -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr7 | FileCheck %s --check-prefix=ELF64
; RUN: llc < %s -O0 -verify-machineinstrs -fast-isel-abort -mtriple=powerpc64le-unknown-linux-gnu -mcpu=pwr8 | FileCheck %s --check-prefix=ELF64LE
; RUN: llc < %s -O0 -verify-machineinstrs -mtriple=powerpc64-unknown-linux-gnu -mcpu=970 | FileCheck %s --check-prefix=PPC970
; FIXME: FastISel currently returns false if it hits code that uses VSX
; registers and with -fast-isel-abort turned on the test case will then fail.
; When fastisel better supports VSX fix up this test case.
;
; RUN: llc < %s -O0 -verify-machineinstrs -fast-isel-abort -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr7 -mattr=-vsx | FileCheck %s --check-prefix=ELF64
; RUN: llc < %s -O0 -verify-machineinstrs -fast-isel-abort -mtriple=powerpc64le-unknown-linux-gnu -mcpu=pwr8 -mattr=-vsx | FileCheck %s --check-prefix=ELF64LE
; RUN: llc < %s -O0 -verify-machineinstrs -mtriple=powerpc64-unknown-linux-gnu -mcpu=970 -mattr=-vsx | FileCheck %s --check-prefix=PPC970
;; Tests for 970 don't use -fast-isel-abort because we intentionally punt
;; to SelectionDAG in some cases.

6
llvm/test/CodeGen/PowerPC/fast-isel-load-store.ll
View File

@ -1,4 +1,8 @@
; RUN: llc < %s -O0 -verify-machineinstrs -fast-isel-abort -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr7 | FileCheck %s --check-prefix=ELF64
; FIXME: FastISel currently returns false if it hits code that uses VSX
; registers and with -fast-isel-abort turned on the test case will then fail.
; When fastisel better supports VSX fix up this test case.
;
; RUN: llc < %s -O0 -verify-machineinstrs -fast-isel -fast-isel-abort -mattr=-vsx -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr7 | FileCheck %s --check-prefix=ELF64
; This test verifies that load/store instructions are properly generated,
; and that they pass MI verification.

6
llvm/test/CodeGen/PowerPC/fast-isel-ret.ll
View File

@ -1,4 +1,8 @@
; RUN: llc < %s -O0 -verify-machineinstrs -fast-isel-abort -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr7 | FileCheck %s --check-prefix=ELF64
; FIXME: FastISel currently returns false if it hits code that uses VSX
; registers and with -fast-isel-abort turned on the test case will then fail.
; When fastisel better supports VSX fix up this test case.
;
; RUN: llc < %s -O0 -verify-machineinstrs -fast-isel-abort -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr7 -mattr=-vsx | FileCheck %s --check-prefix=ELF64
define zeroext i1 @rettrue() nounwind uwtable ssp {
entry: