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09b63898c4
This commit changes normal isel and fast isel to read the user-defined trap function name from function attribute "trap-func-name" attached to llvm.trap or llvm.debugtrap instead of from TargetOptions::TrapFuncName. This is needed to use clang's command line option "-ftrap-function" for LTO and enable changing the trap function name on a per-call-site basis. Out-of-tree projects currently using TargetOptions::TrapFuncName to specify the trap function name should attach attribute "trap-func-name" to the call sites of llvm.trap and llvm.debugtrap instead. rdar://problem/21225723 Differential Revision: http://reviews.llvm.org/D10832 llvm-svn: 241305
41 lines
850 B
LLVM
41 lines
850 B
LLVM
; RUN: llc < %s -march arm | FileCheck %s -check-prefix=NOOPTION
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; RUN: llc < %s -march arm -trap-func=trap_llc | FileCheck %s -check-prefix=TRAP
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; NOOPTION-LABEL: {{\_?}}foo0:
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; NOOPTION: trap{{$}}
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; TRAP-LABEL: {{\_?}}foo0:
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; TRAP: bl {{\_?}}trap_llc
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define void @foo0() {
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call void @llvm.trap()
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unreachable
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}
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; NOOPTION-LABEL: {{\_?}}foo1:
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; NOOPTION: bl {{\_?}}trap_func_attr0
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; TRAP-LABEL: {{\_?}}foo1:
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; TRAP: bl {{\_?}}trap_llc
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define void @foo1() {
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call void @llvm.trap() #0
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unreachable
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}
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; NOOPTION-LABEL: {{\_?}}foo2:
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; NOOPTION: bl {{\_?}}trap_func_attr1
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; TRAP-LABEL: {{\_?}}foo2:
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; TRAP: bl {{\_?}}trap_llc
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define void @foo2() {
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call void @llvm.trap() #1
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unreachable
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}
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declare void @llvm.trap() nounwind
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attributes #0 = { "trap-func-name"="trap_func_attr0" }
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attributes #1 = { "trap-func-name"="trap_func_attr1" }
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