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3a5d1f8cce
For a MC_GlobalAddress reference to a dso_local external GlobalValue with a definition, emit .Lfoo$local to avoid a relocation. -fno-pic and -fpie can infer dso_local but -fpic cannot. In the future, we can explore the possibility of inferring dso_local with -fpic. As the description of D73228 says, LLVM's existing IPO optimization behaviors (like -fno-semantic-interposition) and a previous assembly behavior give us enough license to be aggressive here. Reviewed By: rnk Differential Revision: https://reviews.llvm.org/D73230
17 lines
507 B
LLVM
17 lines
507 B
LLVM
; RUN: llc < %s -tailcallopt -mtriple=i686-pc-linux-gnu -relocation-model=pic | FileCheck %s
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; This test uses guaranteed TCO so these will be tail calls, despite the early
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; binding issues.
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define protected fastcc i32 @tailcallee(i32 %a1, i32 %a2, i32 %a3, i32 %a4) {
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entry:
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ret i32 %a3
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}
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define fastcc i32 @tailcaller(i32 %in1, i32 %in2) {
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entry:
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%tmp11 = tail call fastcc i32 @tailcallee( i32 %in1, i32 %in2, i32 %in1, i32 %in2 ) ; <i32> [#uses=1]
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ret i32 %tmp11
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; CHECK: jmp .Ltailcallee$local
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}
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