cd12e79e6d
Summary: Propagate memory operands when folding test instructions. This was split from D80062. Reviewers: craig.topper, rnk, lebedev.ri Reviewed By: craig.topper Subscribers: hiraditya, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D80140
15 lines
398 B
LLVM
15 lines
398 B
LLVM
; RUN: llc -O2 -mtriple=x86_64-- -stop-after=finalize-isel < %s | FileCheck %s
|
|
|
|
define i1 @fold_test(i64* %x, i64 %l) {
|
|
entry:
|
|
%0 = load i64, i64* %x, align 8
|
|
%and = and i64 %0, %l
|
|
%tobool = icmp ne i64 %and, 0
|
|
ret i1 %tobool
|
|
|
|
; Folding the load+and+icmp instructions into a TEST64mr instruction
|
|
; should preserve memory operands.
|
|
; CHECK: TEST64mr {{.*}} :: (load 8 from {{%.*}})
|
|
}
|
|
|