forked from OSchip/llvm-project
36 lines
1.5 KiB
LLVM
36 lines
1.5 KiB
LLVM
; RUN: opt -S -lowerbitsets < %s | FileCheck %s
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; Tests that we correctly create a jump table for bitsets containing 2 or more
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; functions.
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target triple = "x86_64-unknown-linux-gnu"
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target datalayout = "e-p:64:64"
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; CHECK: @[[JT:.*]] = private constant [2 x <{ i8, i32, i8, i8, i8 }>] [<{ i8, i32, i8, i8, i8 }> <{ i8 -23, i32 trunc (i64 sub (i64 sub (i64 ptrtoint (void ()* @[[FNAME:.*]] to i64), i64 ptrtoint ([2 x <{ i8, i32, i8, i8, i8 }>]* @[[JT]] to i64)), i64 5) to i32), i8 -52, i8 -52, i8 -52 }>, <{ i8, i32, i8, i8, i8 }> <{ i8 -23, i32 trunc (i64 sub (i64 sub (i64 ptrtoint (void ()* @[[GNAME:.*]] to i64), i64 ptrtoint ([2 x <{ i8, i32, i8, i8, i8 }>]* @[[JT]] to i64)), i64 13) to i32), i8 -52, i8 -52, i8 -52 }>], section ".text"
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; CHECK: @f = alias void (), bitcast ([2 x <{ i8, i32, i8, i8, i8 }>]* @[[JT]] to void ()*)
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; CHECK: @g = alias void (), bitcast (<{ i8, i32, i8, i8, i8 }>* getelementptr inbounds ([2 x <{ i8, i32, i8, i8, i8 }>], [2 x <{ i8, i32, i8, i8, i8 }>]* @[[JT]], i64 0, i64 1) to void ()*)
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; CHECK: define private void @[[FNAME]]() {
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define void @f() {
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ret void
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}
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; CHECK: define private void @[[GNAME]]() {
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define void @g() {
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ret void
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}
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!0 = !{!"bitset1", void ()* @f, i32 0}
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!1 = !{!"bitset1", void ()* @g, i32 0}
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!llvm.bitsets = !{ !0, !1 }
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declare i1 @llvm.bitset.test(i8* %ptr, metadata %bitset) nounwind readnone
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define i1 @foo(i8* %p) {
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; CHECK: sub i64 {{.*}}, ptrtoint ([2 x <{ i8, i32, i8, i8, i8 }>]* @[[JT]] to i64)
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%x = call i1 @llvm.bitset.test(i8* %p, metadata !"bitset1")
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ret i1 %x
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}
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