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[ARM] Create relocations for unconditional branches.
Summary: Relocations are required for unconditional branches to function symbols with different execution mode. Without this patch, incorrect branches are generated for tail calls between functions with different execution mode. Reviewers: peter.smith, rafael, echristo, kristof.beyls Reviewed By: peter.smith Subscribers: aemerson, javed.absar, llvm-commits Differential Revision: https://reviews.llvm.org/D33898 llvm-svn: 304882
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; RUN: llc -O0 < %s -mtriple armv7-linux-gnueabi -o - \ | ||
; RUN: | llvm-mc -triple armv7-linux-gnueabi -filetype=obj -o - \ | ||
; RUN: | llvm-readobj -r | FileCheck %s | ||
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target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64" | ||
target triple = "armv7--linux-gnueabihf" | ||
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define internal i32 @arm_fn() #1 { | ||
%1 = tail call i32 @thumb_fn() | ||
ret i32 %1 | ||
} | ||
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define internal i32 @thumb_fn() #2 { | ||
%1 = tail call i32 @arm_fn() | ||
ret i32 %1 | ||
} | ||
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attributes #1 = { "target-features"="-thumb-mode" } | ||
attributes #2 = { "target-features"="+thumb-mode" } | ||
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; CHECK: Relocations [ | ||
; CHECK-NEXT: Section (3) .rel.text { | ||
; CHECK-NEXT: 0x0 R_ARM_JUMP24 thumb_fn 0x0 | ||
; CHECK-NEXT: 0x4 R_ARM_THM_JUMP24 arm_fn 0x0 | ||
; CHECK-NEXT: } |