mirror of
https://github.com/RPCS3/llvm.git
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8a0fc5ba4f
This patch introduces a new function attribute, willreturn, to indicate that a call of this function will either exhibit undefined behavior or comes back and continues execution at a point in the existing call stack that includes the current invocation. This attribute guarantees that the function does not have any endless loops, endless recursion, or terminating functions like abort or exit. Patch by Hideto Ueno (@uenoku) Reviewers: jdoerfert Subscribers: mehdi_amini, hiraditya, steven_wu, dexonsmith, lebedev.ri, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D62801 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@364555 91177308-0d34-0410-b5e6-96231b3b80d8
398 lines
7.7 KiB
LLVM
398 lines
7.7 KiB
LLVM
; RUN: llvm-as < %s | llvm-dis | FileCheck %s
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; RUN: verify-uselistorder < %s
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; PR12696
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define void @f1(i8 zeroext)
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; CHECK: define void @f1(i8 zeroext)
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{
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ret void;
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}
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define void @f2(i8 signext)
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; CHECK: define void @f2(i8 signext)
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{
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ret void;
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}
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define void @f3() noreturn
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; CHECK: define void @f3() #0
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{
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ret void;
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}
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define void @f4(i8 inreg)
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; CHECK: define void @f4(i8 inreg)
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{
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ret void;
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}
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define void @f5(i8* sret)
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; CHECK: define void @f5(i8* sret)
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{
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ret void;
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}
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define void @f6() nounwind
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; CHECK: define void @f6() #1
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{
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ret void;
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}
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define void @f7(i8* noalias)
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; CHECK: define void @f7(i8* noalias)
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{
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ret void;
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}
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define void @f8(i8* byval)
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; CHECK: define void @f8(i8* byval(i8))
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{
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ret void;
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}
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define void @f9(i8* nest)
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; CHECK: define void @f9(i8* nest)
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{
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ret void;
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}
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define void @f10() readnone
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; CHECK: define void @f10() #2
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{
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ret void;
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}
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define void @f11() readonly
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; CHECK: define void @f11() #3
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{
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ret void;
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}
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define void @f12() noinline
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; CHECK: define void @f12() #4
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{
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ret void;
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}
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define void @f13() alwaysinline
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; CHECK: define void @f13() #5
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{
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ret void;
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}
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define void @f14() optsize
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; CHECK: define void @f14() #6
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{
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ret void;
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}
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define void @f15() ssp
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; CHECK: define void @f15() #7
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{
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ret void;
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}
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define void @f16() sspreq
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; CHECK: define void @f16() #8
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{
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ret void;
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}
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define void @f17(i8 align 4)
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; CHECK: define void @f17(i8 align 4)
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{
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ret void;
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}
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define void @f18(i8* nocapture)
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; CHECK: define void @f18(i8* nocapture)
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{
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ret void;
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}
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define void @f19() noredzone
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; CHECK: define void @f19() #9
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{
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ret void;
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}
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define void @f20() noimplicitfloat
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; CHECK: define void @f20() #10
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{
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ret void;
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}
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define void @f21() naked
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; CHECK: define void @f21() #11
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{
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ret void;
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}
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define void @f22() inlinehint
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; CHECK: define void @f22() #12
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{
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ret void;
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}
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define void @f23() alignstack(4)
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; CHECK: define void @f23() #13
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{
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ret void;
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}
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define void @f24() returns_twice
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; CHECK: define void @f24() #14
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{
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ret void;
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}
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define void @f25() uwtable
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; CHECK: define void @f25() #15
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{
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ret void;
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}
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define void @f26() nonlazybind
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; CHECK: define void @f26() #16
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{
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ret void;
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}
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define void @f27() sanitize_address
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; CHECK: define void @f27() #17
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{
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ret void;
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}
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define void @f28() sanitize_thread
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; CHECK: define void @f28() #18
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{
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ret void;
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}
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define void @f29() sanitize_memory
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; CHECK: define void @f29() #19
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{
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ret void;
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}
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define void @f30() "cpu"="cortex-a8"
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; CHECK: define void @f30() #20
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{
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ret void;
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}
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define i8 @f31(i8 returned %A)
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; CHECK: define i8 @f31(i8 returned %A)
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{
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ret i8 %A;
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}
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define void @f32() sspstrong
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; CHECK: define void @f32() #21
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{
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ret void;
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}
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define void @f33() minsize
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; CHECK: define void @f33() #22
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{
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ret void;
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}
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declare void @nobuiltin()
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define void @f34()
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; CHECK: define void @f34()
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{
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call void @nobuiltin() nobuiltin
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; CHECK: call void @nobuiltin() #37
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ret void;
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}
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define void @f35() optnone noinline
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; CHECK: define void @f35() #23
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{
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ret void;
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}
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define void @f36(i8* inalloca) {
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; CHECK: define void @f36(i8* inalloca) {
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ret void
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}
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define nonnull i8* @f37(i8* nonnull %a) {
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; CHECK: define nonnull i8* @f37(i8* nonnull %a) {
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ret i8* %a
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}
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define void @f38() unnamed_addr jumptable {
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; CHECK: define void @f38() unnamed_addr #24
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call void bitcast (void (i8*)* @f36 to void ()*)()
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unreachable
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}
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define dereferenceable(2) i8* @f39(i8* dereferenceable(1) %a) {
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; CHECK: define dereferenceable(2) i8* @f39(i8* dereferenceable(1) %a) {
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ret i8* %a
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}
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define dereferenceable(18446744073709551606) i8* @f40(i8* dereferenceable(18446744073709551615) %a) {
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; CHECK: define dereferenceable(18446744073709551606) i8* @f40(i8* dereferenceable(18446744073709551615) %a) {
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ret i8* %a
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}
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define void @f41(i8* align 32, double* align 64) {
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; CHECK: define void @f41(i8* align 32, double* align 64) {
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ret void
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}
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; CHECK: define dereferenceable_or_null(8) i8* @f42(i8* dereferenceable_or_null(8) %foo)
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define dereferenceable_or_null(8) i8* @f42(i8* dereferenceable_or_null(8) %foo) {
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entry:
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ret i8* %foo
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}
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; CHECK: define void @f43() #25
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define void @f43() convergent {
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ret void
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}
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define void @f44() argmemonly
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; CHECK: define void @f44() #26
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{
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ret void;
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}
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; CHECK: define "string_attribute" void @f45(i32 "string_attribute")
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define "string_attribute" void @f45(i32 "string_attribute") {
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ret void
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}
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; CHECK: define "string_attribute_with_value"="value" void @f46(i32 "string_attribute_with_value"="value")
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define "string_attribute_with_value"="value" void @f46(i32 "string_attribute_with_value"="value") {
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ret void
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}
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; CHECK: define void @f47() #27
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define void @f47() norecurse {
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ret void
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}
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; CHECK: define void @f48() #28
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define void @f48() inaccessiblememonly {
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ret void
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}
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; CHECK: define void @f49() #29
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define void @f49() inaccessiblemem_or_argmemonly {
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ret void
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}
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; CHECK: define void @f50(i8* swiftself)
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define void @f50(i8* swiftself)
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{
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ret void;
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}
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; CHECK: define i32 @f51(i8** swifterror)
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define i32 @f51(i8** swifterror)
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{
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ret i32 0
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}
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; CHECK: define i32 @f52(i32, i8** swifterror)
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define i32 @f52(i32, i8** swifterror)
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{
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ret i32 0
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}
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%swift_error = type {i64, i8}
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declare float @foo(%swift_error** swifterror %error_ptr_ref)
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; CHECK: define float @f53
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; CHECK: alloca swifterror
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define float @f53(i8* %error_ref) {
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entry:
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%error_ptr_ref = alloca swifterror %swift_error*
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store %swift_error* null, %swift_error** %error_ptr_ref
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%call = call float @foo(%swift_error** swifterror %error_ptr_ref)
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ret float 1.0
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}
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; CHECK: define i8* @f54(i32) #30
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define i8* @f54(i32) allocsize(0) {
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ret i8* null
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}
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; CHECK: define i8* @f55(i32, i32) #31
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define i8* @f55(i32, i32) allocsize(0, 1) {
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ret i8* null
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}
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; CHECK: define void @f56() #32
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define void @f56() writeonly
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{
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ret void
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}
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; CHECK: define void @f57() #33
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define void @f57() speculatable {
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ret void
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}
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; CHECK: define void @f58() #34
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define void @f58() sanitize_hwaddress
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{
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ret void;
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}
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; CHECK: define void @f59() #35
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define void @f59() shadowcallstack
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{
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ret void
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}
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; CHECK: define void @f60() #36
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define void @f60() willreturn
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{
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ret void
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}
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; CHECK: attributes #0 = { noreturn }
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; CHECK: attributes #1 = { nounwind }
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; CHECK: attributes #2 = { readnone }
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; CHECK: attributes #3 = { readonly }
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; CHECK: attributes #4 = { noinline }
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; CHECK: attributes #5 = { alwaysinline }
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; CHECK: attributes #6 = { optsize }
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; CHECK: attributes #7 = { ssp }
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; CHECK: attributes #8 = { sspreq }
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; CHECK: attributes #9 = { noredzone }
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; CHECK: attributes #10 = { noimplicitfloat }
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; CHECK: attributes #11 = { naked }
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; CHECK: attributes #12 = { inlinehint }
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; CHECK: attributes #13 = { alignstack=4 }
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; CHECK: attributes #14 = { returns_twice }
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; CHECK: attributes #15 = { uwtable }
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; CHECK: attributes #16 = { nonlazybind }
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; CHECK: attributes #17 = { sanitize_address }
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; CHECK: attributes #18 = { sanitize_thread }
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; CHECK: attributes #19 = { sanitize_memory }
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; CHECK: attributes #20 = { "cpu"="cortex-a8" }
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; CHECK: attributes #21 = { sspstrong }
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; CHECK: attributes #22 = { minsize }
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; CHECK: attributes #23 = { noinline optnone }
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; CHECK: attributes #24 = { jumptable }
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; CHECK: attributes #25 = { convergent }
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; CHECK: attributes #26 = { argmemonly }
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; CHECK: attributes #27 = { norecurse }
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; CHECK: attributes #28 = { inaccessiblememonly }
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; CHECK: attributes #29 = { inaccessiblemem_or_argmemonly }
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; CHECK: attributes #30 = { allocsize(0) }
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; CHECK: attributes #31 = { allocsize(0,1) }
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; CHECK: attributes #32 = { writeonly }
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; CHECK: attributes #33 = { speculatable }
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; CHECK: attributes #34 = { sanitize_hwaddress }
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; CHECK: attributes #35 = { shadowcallstack }
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; CHECK: attributes #36 = { willreturn }
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; CHECK: attributes #37 = { nobuiltin }
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