mirror of
https://github.com/jeremysrand/llvm-65816.git
synced 2024-11-18 23:05:00 +00:00
109 lines
2.4 KiB
LLVM
109 lines
2.4 KiB
LLVM
; Test that we can use NI for byte operations that are expressed as i32
|
|
; or i64 operations.
|
|
;
|
|
; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
|
|
|
|
; Zero extension to 32 bits, negative constant.
|
|
define void @f1(i8 *%ptr) {
|
|
; CHECK-LABEL: f1:
|
|
; CHECK: ni 0(%r2), 254
|
|
; CHECK: br %r14
|
|
%val = load i8 *%ptr
|
|
%ext = zext i8 %val to i32
|
|
%and = and i32 %ext, -2
|
|
%trunc = trunc i32 %and to i8
|
|
store i8 %trunc, i8 *%ptr
|
|
ret void
|
|
}
|
|
|
|
; Zero extension to 64 bits, negative constant.
|
|
define void @f2(i8 *%ptr) {
|
|
; CHECK-LABEL: f2:
|
|
; CHECK: ni 0(%r2), 254
|
|
; CHECK: br %r14
|
|
%val = load i8 *%ptr
|
|
%ext = zext i8 %val to i64
|
|
%and = and i64 %ext, -2
|
|
%trunc = trunc i64 %and to i8
|
|
store i8 %trunc, i8 *%ptr
|
|
ret void
|
|
}
|
|
|
|
; Zero extension to 32 bits, positive constant.
|
|
define void @f3(i8 *%ptr) {
|
|
; CHECK-LABEL: f3:
|
|
; CHECK: ni 0(%r2), 254
|
|
; CHECK: br %r14
|
|
%val = load i8 *%ptr
|
|
%ext = zext i8 %val to i32
|
|
%and = and i32 %ext, 254
|
|
%trunc = trunc i32 %and to i8
|
|
store i8 %trunc, i8 *%ptr
|
|
ret void
|
|
}
|
|
|
|
; Zero extension to 64 bits, positive constant.
|
|
define void @f4(i8 *%ptr) {
|
|
; CHECK-LABEL: f4:
|
|
; CHECK: ni 0(%r2), 254
|
|
; CHECK: br %r14
|
|
%val = load i8 *%ptr
|
|
%ext = zext i8 %val to i64
|
|
%and = and i64 %ext, 254
|
|
%trunc = trunc i64 %and to i8
|
|
store i8 %trunc, i8 *%ptr
|
|
ret void
|
|
}
|
|
|
|
; Sign extension to 32 bits, negative constant.
|
|
define void @f5(i8 *%ptr) {
|
|
; CHECK-LABEL: f5:
|
|
; CHECK: ni 0(%r2), 254
|
|
; CHECK: br %r14
|
|
%val = load i8 *%ptr
|
|
%ext = sext i8 %val to i32
|
|
%and = and i32 %ext, -2
|
|
%trunc = trunc i32 %and to i8
|
|
store i8 %trunc, i8 *%ptr
|
|
ret void
|
|
}
|
|
|
|
; Sign extension to 64 bits, negative constant.
|
|
define void @f6(i8 *%ptr) {
|
|
; CHECK-LABEL: f6:
|
|
; CHECK: ni 0(%r2), 254
|
|
; CHECK: br %r14
|
|
%val = load i8 *%ptr
|
|
%ext = sext i8 %val to i64
|
|
%and = and i64 %ext, -2
|
|
%trunc = trunc i64 %and to i8
|
|
store i8 %trunc, i8 *%ptr
|
|
ret void
|
|
}
|
|
|
|
; Sign extension to 32 bits, positive constant.
|
|
define void @f7(i8 *%ptr) {
|
|
; CHECK-LABEL: f7:
|
|
; CHECK: ni 0(%r2), 254
|
|
; CHECK: br %r14
|
|
%val = load i8 *%ptr
|
|
%ext = sext i8 %val to i32
|
|
%and = and i32 %ext, 254
|
|
%trunc = trunc i32 %and to i8
|
|
store i8 %trunc, i8 *%ptr
|
|
ret void
|
|
}
|
|
|
|
; Sign extension to 64 bits, positive constant.
|
|
define void @f8(i8 *%ptr) {
|
|
; CHECK-LABEL: f8:
|
|
; CHECK: ni 0(%r2), 254
|
|
; CHECK: br %r14
|
|
%val = load i8 *%ptr
|
|
%ext = sext i8 %val to i64
|
|
%and = and i64 %ext, 254
|
|
%trunc = trunc i64 %and to i8
|
|
store i8 %trunc, i8 *%ptr
|
|
ret void
|
|
}
|