8b360c69e9
This patch improves the fix in D110529 to prevent from crashing on value with byval attribute that is not added in SCCP solver. Authored-by: sinan.lin@linux.alibaba.com Reviewed By: ChuanqiXu Differential Revision: https://reviews.llvm.org/D126355
33 lines
1.2 KiB
LLVM
33 lines
1.2 KiB
LLVM
; RUN: opt -function-specialization -force-function-specialization -S < %s | FileCheck %s
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; Check that we don't crash and specialise on a function call with byval attribute.
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; CHECK-NOT: wombat.{{[0-9]+}}
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declare i32* @quux()
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declare i32* @eggs()
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define i32 @main() {
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; CHECK: bb:
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; CHECK-NEXT: tail call void @wombat(i8* undef, i64 undef, i64 undef, i32* byval(i32) bitcast (i32* ()* @quux to i32*))
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; CHECK-NEXT: tail call void @wombat(i8* undef, i64 undef, i64 undef, i32* byval(i32) bitcast (i32* ()* @eggs to i32*))
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; CHECK-NEXT: ret i32 undef
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;
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bb:
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tail call void @wombat(i8* undef, i64 undef, i64 undef, i32* byval(i32) bitcast (i32* ()* @quux to i32*))
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tail call void @wombat(i8* undef, i64 undef, i64 undef, i32* byval(i32) bitcast (i32* ()* @eggs to i32*))
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ret i32 undef
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}
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define internal void @wombat(i8* %arg, i64 %arg1, i64 %arg2, i32* byval(i32) %func) {
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; CHECK: bb2:
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; CHECK-NEXT: [[FUNPTR:%.*]] = bitcast i32* %func to i32* (i8*, i8*)*
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; CHECK-NEXT: [[TMP:%.*]] = tail call i32* [[FUNPTR]](i8* undef, i8* undef)
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; CHECK-NEXT: ret void
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;
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bb2:
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%mycall = bitcast i32* %func to i32* (i8*, i8*)*
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%tmp = tail call i32* %mycall(i8* undef, i8* undef)
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ret void
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}
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