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llvm-project/llvm/test/MC/COFF/ir-to-imgrel.ll

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WinCOFF: Transform IR expressions featuring __ImageBase into image relative relocations MSVC on x64 requires that we create image relative symbol references to refer to RTTI data. Seeing as how there is no way to explicitly make reference to a given relocation type in LLVM IR, pattern match expressions of the form &foo - &__ImageBase. Differential Revision: http://llvm-reviews.chandlerc.com/D2523 llvm-svn: 199312
2014-01-15 17:16:42 +08:00
; RUN: llc -mtriple=x86_64-pc-win32 %s -o - | FileCheck %s --check-prefix=X64
@__ImageBase = external global i8
MC: Use @IMGREL instead of @IMGREL32, which we can't parse Nico Rieck added support for this 32-bit COFF relocation some time ago for Win64 stuff. It appears that as an oversight, the assembly output used "foo"@IMGREL32 instead of "foo"@IMGREL, which is what we can parse. Sadly, there were actually tests that took in IMGREL and put out IMGREL32, and we didn't notice the inconsistency. Oh well. Now LLVM can assemble it's own output with slightly more fidelity. llvm-svn: 218437
2014-09-25 10:09:18 +08:00
; X64: .quad "?x@@3HA"@IMGREL
WinCOFF: Transform IR expressions featuring __ImageBase into image relative relocations MSVC on x64 requires that we create image relative symbol references to refer to RTTI data. Seeing as how there is no way to explicitly make reference to a given relocation type in LLVM IR, pattern match expressions of the form &foo - &__ImageBase. Differential Revision: http://llvm-reviews.chandlerc.com/D2523 llvm-svn: 199312
2014-01-15 17:16:42 +08:00
@"\01?x@@3HA" = global i64 sub nsw (i64 ptrtoint (i64* @"\01?x@@3HA" to i64), i64 ptrtoint (i8* @__ImageBase to i64)), align 8
X86: Form IMGREL relocations for LLVM Functions We supported forming IMGREL relocations from ConstantExprs involving __ImageBase if the minuend was a GlobalVariable. Extend this functionality to all GlobalObjects. llvm-svn: 231456
2015-03-06 16:11:32 +08:00
declare void @f()
; X64: .quad f@IMGREL
@fp = global i64 sub nsw (i64 ptrtoint (void ()* @f to i64), i64 ptrtoint (i8* @__ImageBase to i64)), align 8