36 lines
1,004 B
LLVM
36 lines
1,004 B
LLVM
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; RUN: llc < %s -verify-machineinstrs | FileCheck %s
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; Wasm does not currently support function addresses with offsets, so we
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; shouldn't try to create a folded SDNode like (function + offset). This is a
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; regression test for the folding bug and this should not crash in MCInstLower.
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target triple = "wasm32-unknown-unknown"
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; 'hidden' here should be present to reproduce the bug
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declare hidden void @ham(ptr)
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define void @bar(ptr %ptr) {
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bb1:
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br i1 undef, label %bb3, label %bb2
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bb2:
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; While lowering this switch, isel creates (@ham + 1) expression as a course
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; of range optimization for switch, and tries to fold the expression, but
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; wasm does not support with function addresses with offsets. This folding
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; should be disabled.
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; CHECK: i32.const ham
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; CHECK-NEXT: i32.const 1
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; CHECK-NEXT: i32.add
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switch i32 ptrtoint (ptr @ham to i32), label %bb4 [
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i32 -1, label %bb3
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i32 0, label %bb3
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]
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bb3:
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unreachable
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bb4:
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%tmp = load i8, ptr %ptr
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unreachable
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}
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