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aca5f1663a
When we collect 2 uses of a function in FindUses and then RAUW when we visit the first, we end up visiting the wrapper (because the second was RAUW'd). We still want to use RAUW instead of just Use->set() because it has special handling for Constants, so this patch just ensures that only one use of each constant is added to the work list. Differential Revision: https://reviews.llvm.org/D28504 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@291603 91177308-0d34-0410-b5e6-96231b3b80d8
73 lines
2.3 KiB
LLVM
73 lines
2.3 KiB
LLVM
; RUN: llc < %s -asm-verbose=false | FileCheck %s
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; Test that function pointer casts are replaced with wrappers.
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target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128"
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target triple = "wasm32-unknown-unknown"
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; CHECK-LABEL: test:
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; CHECK-NEXT: call .Lbitcast@FUNCTION{{$}}
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; CHECK-NEXT: call .Lbitcast@FUNCTION{{$}}
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; CHECK-NEXT: call .Lbitcast.1@FUNCTION{{$}}
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; CHECK-NEXT: i32.const $push[[L0:[0-9]+]]=, 0
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; CHECK-NEXT: call .Lbitcast.2@FUNCTION, $pop[[L0]]{{$}}
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; CHECK-NEXT: i32.const $push[[L1:[0-9]+]]=, 0
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; CHECK-NEXT: call .Lbitcast.2@FUNCTION, $pop[[L1]]{{$}}
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; CHECK-NEXT: i32.const $push[[L2:[0-9]+]]=, 0
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; CHECK-NEXT: call .Lbitcast.2@FUNCTION, $pop[[L2]]{{$}}
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; CHECK-NEXT: call foo0@FUNCTION
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; CHECK-NEXT: i32.call $drop=, .Lbitcast.3@FUNCTION{{$}}
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; CHECK-NEXT: call foo2@FUNCTION{{$}}
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; CHECK-NEXT: call foo1@FUNCTION{{$}}
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; CHECK-NEXT: call foo3@FUNCTION{{$}}
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; CHECK-NEXT: .endfunc
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; CHECK-LABEL: .Lbitcast:
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; CHECK-NEXT: .local i32
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; CHECK-NEXT: call has_i32_arg@FUNCTION, $0{{$}}
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; CHECK-NEXT: .endfunc
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; CHECK-LABEL: .Lbitcast.1:
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; CHECK-NEXT: call $drop=, has_i32_ret@FUNCTION{{$}}
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; CHECK-NEXT: .endfunc
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; CHECK-LABEL: .Lbitcast.2:
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; CHECK-NEXT: .param i32
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; CHECK-NEXT: call foo0@FUNCTION{{$}}
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; CHECK-NEXT: .endfunc
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; CHECK-LABEL: .Lbitcast.3:
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; CHECK-NEXT: .result i32
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; CHECK-NEXT: .local i32
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; CHECK-NEXT: call foo1@FUNCTION{{$}}
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; CHECK-NEXT: copy_local $push0=, $0
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; CHECK-NEXT: .endfunc
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declare void @has_i32_arg(i32)
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declare i32 @has_i32_ret()
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declare void @foo0()
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declare void @foo1()
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declare void @foo2()
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declare void @foo3()
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define void @test() {
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entry:
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call void bitcast (void (i32)* @has_i32_arg to void ()*)()
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call void bitcast (void (i32)* @has_i32_arg to void ()*)()
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call void bitcast (i32 ()* @has_i32_ret to void ()*)()
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call void bitcast (void ()* @foo0 to void (i32)*)(i32 0)
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%p = bitcast void ()* @foo0 to void (i32)*
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call void %p(i32 0)
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%q = bitcast void ()* @foo0 to void (i32)*
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call void %q(i32 0)
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%r = bitcast void (i32)* %q to void ()*
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call void %r()
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%t = call i32 bitcast (void ()* @foo1 to i32 ()*)()
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call void bitcast (void ()* @foo2 to void ()*)()
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call void @foo1()
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call void @foo3()
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ret void
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}
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