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02f664086c
The addend in a REL32 reloc needs to be adjusted to account for the offset from the PC value returned by the s_getpc instruction to the point where the reloc is applied. This was being done correctly for (GOTPC)REL32_LO but not for (GOTPC)REL32_HI. This will only make a difference if the target symbol happens to get loaded almost exactly a multiple of 4G away from the relocated instructions. Differential Revision: https://reviews.llvm.org/D86938
13 lines
500 B
LLVM
13 lines
500 B
LLVM
; RUN: llc -march=amdgcn -mcpu=gfx900 -verify-machineinstrs < %s | FileCheck %s
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@g = protected local_unnamed_addr addrspace(4) externally_initialized global i32 0, align 4
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; CHECK-LABEL: rel32_neg_offset:
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; CHECK: s_getpc_b64 s{{\[}}[[LO:[0-9]+]]:[[HI:[0-9]+]]{{]}}
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; CHECK: s_add_u32 s[[LO]], s[[LO]], g@rel32@lo-4
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; CHECK: s_addc_u32 s[[HI]], s[[HI]], g@rel32@hi+4
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define i32 addrspace(4)* @rel32_neg_offset() {
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%r = getelementptr i32, i32 addrspace(4)* @g, i64 -2
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ret i32 addrspace(4)* %r
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}
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