[ELF][test] gitBitcodeMachineKind: test EM_ARM

Author: MaskRay

lld/test/ELF/lto/arm.ll

@@ -0,0 +1,59 @@
+; REQUIRES: arm
+;; Test we can infer the e_machine value EM_ARM from a bitcode file.
+
+; RUN: split-file %s %t
+
+; RUN: llvm-as %t/arm.ll -o %t/arm.o
+; RUN: ld.lld %t/arm.o -o %t/arm
+; RUN: llvm-readobj -h %t/arm | FileCheck %s --check-prefix=ARM
+; RUN: llvm-as %t/armeb.ll -o %t/armeb.o
+; RUN: not ld.lld %t/armeb.o -o %t/armeb
+
+; RUN: llvm-as %t/thumb.ll -o %t/thumb.o
+; RUN: ld.lld %t/thumb.o -o %t/thumb
+; RUN: llvm-readobj -h %t/thumb | FileCheck %s --check-prefix=THUMB
+; RUN: llvm-as %t/thumbeb.ll -o %t/thumbeb.o
+; RUN: not ld.lld %t/thumbeb.o -o %t/thumbeb
+
+; ARM:       Class: 32-bit
+; ARM:       DataEncoding: LittleEndian
+; ARM:     Machine: EM_ARM (
+; ARMEB:     Class: 32-bit
+; ARMEB:     DataEncoding: BigEndian
+; ARMEB:   Machine: EM_ARM (
+
+; THUMB:     Class: 32-bit
+; THUMB:     DataEncoding: LittleEndian
+; THUMB:   Machine: EM_ARM (
+
+;--- arm.ll
+target datalayout = "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64"
+target triple = "armv7-linux-musleabi"
+
+define void @_start() {
+  ret void
+}
+
+;--- thumb.ll
+target datalayout = "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64"
+target triple = "thumbv8m.base-none-unknown-gnueabi"
+
+define void @_start() {
+  ret void
+}
+
+;--- armeb.ll
+target datalayout = "E-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64"
+target triple = "armebv7-unknown-linux-musleabi"
+
+define void @_start() {
+  ret void
+}
+
+;--- thumbeb.ll
+target datalayout = "E-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64"
+target triple = "thumbebv8m.base-none-unknown-gnueabi"
+
+define void @_start() {
+  ret void
+}