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llvm-mirror/test/CodeGen/RISCV/fixups-relax-diff.ll
Hsiangkai Wang fc3df54f27 [DebugInfo] Generate fixups as emitting DWARF .debug_frame/.eh_frame.
It is necessary to generate fixups in .debug_frame or .eh_frame as
relaxation is enabled due to the address delta may be changed after
relaxation.

There is an opcode with 6-bits data in debug frame encoding. So, we
also need 6-bits fixup types.

Differential Revision: https://reviews.llvm.org/D58335

llvm-svn: 366524
2019-07-19 02:03:34 +00:00

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775 B
LLVM

; RUN: llc -filetype=obj -mtriple=riscv32 -mattr=+relax %s -o - \
; RUN: | llvm-readobj -r | FileCheck -check-prefix=RELAX %s
; RUN: llc -filetype=obj -mtriple=riscv32 -mattr=-relax %s -o - \
; RUN: | llvm-readobj -r | FileCheck -check-prefix=NORELAX %s
; This test checks that a diff inserted via inline assembly only causes
; relocations when relaxation is enabled. This isn't an assembly test
; as the assembler takes a different path through LLVM, which is
; already covered by the fixups-expr.s test.
define i32 @main() nounwind {
entry:
%retval = alloca i32, align 4
store i32 0, i32* %retval, align 4
; RELAX: R_RISCV_ADD64 b
; RELAX: R_RISCV_SUB64 a
; NORELAX-NOT: R_RISCV_ADD
call void asm sideeffect "a:\0Ab:\0A.dword b-a", ""()
ret i32 0
}