llvm-mirror/test/CodeGen/AArch64/fast-isel-int-ext4.ll
Mehdi Amini 32875af6e3 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>
llvm-svn: 230775
2015-02-27 18:32:11 +00:00

21 lines
421 B
LLVM

; RUN: llc -mtriple=aarch64-apple-darwin -fast-isel -fast-isel-abort=1 -verify-machineinstrs < %s | FileCheck %s
define i32 @kill_flag(i16 signext %a) {
; CHECK-LABEL: kill_flag
entry:
%0 = sext i16 %a to i32
br label %bb1
bb1:
%1 = icmp slt i32 undef, %0
br i1 %1, label %loop, label %exit
loop:
%2 = sext i16 %a to i32
%3 = icmp slt i32 undef, %2
br i1 %3, label %bb1, label %exit
exit:
ret i32 0
}