llvm/test/CodeGen/ARM/fast-isel-shifter.ll
Mehdi Amini 26d628d6ce Change the fast-isel-abort option from bool to int to enable "levels"
Summary:
Currently fast-isel-abort will only abort for regular instructions,
and just warn for function calls, terminators, function arguments.
There is already fast-isel-abort-args but nothing for calls and
terminators.

This change turns the fast-isel-abort options into an integer option,
so that multiple levels of strictness can be defined.
This will help no being surprised when the "abort" option indeed does
not abort, and enables the possibility to write test that verifies
that no intrinsics are forgotten by fast-isel.

Reviewers: resistor, echristo

Subscribers: jfb, llvm-commits

Differential Revision: http://reviews.llvm.org/D7941

From: Mehdi Amini <mehdi.amini@apple.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230775 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 18:32:11 +00:00

52 lines
1.1 KiB
LLVM

; RUN: llc < %s -O0 -fast-isel-abort=1 -relocation-model=dynamic-no-pic -mtriple=armv7-apple-ios -verify-machineinstrs | FileCheck %s --check-prefix=ARM
; RUN: llc < %s -O0 -fast-isel-abort=1 -relocation-model=dynamic-no-pic -mtriple=armv7-linux-gnueabi -verify-machineinstrs | FileCheck %s --check-prefix=ARM
define i32 @shl() nounwind ssp {
entry:
; ARM: shl
; ARM: lsl r0, r0, #2
%shl = shl i32 -1, 2
ret i32 %shl
}
define i32 @shl_reg(i32 %src1, i32 %src2) nounwind ssp {
entry:
; ARM: shl_reg
; ARM: lsl r0, r0, r1
%shl = shl i32 %src1, %src2
ret i32 %shl
}
define i32 @lshr() nounwind ssp {
entry:
; ARM: lshr
; ARM: lsr r0, r0, #2
%lshr = lshr i32 -1, 2
ret i32 %lshr
}
define i32 @lshr_reg(i32 %src1, i32 %src2) nounwind ssp {
entry:
; ARM: lshr_reg
; ARM: lsr r0, r0, r1
%lshr = lshr i32 %src1, %src2
ret i32 %lshr
}
define i32 @ashr() nounwind ssp {
entry:
; ARM: ashr
; ARM: asr r0, r0, #2
%ashr = ashr i32 -1, 2
ret i32 %ashr
}
define i32 @ashr_reg(i32 %src1, i32 %src2) nounwind ssp {
entry:
; ARM: ashr_reg
; ARM: asr r0, r0, r1
%ashr = ashr i32 %src1, %src2
ret i32 %ashr
}