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https://github.com/c64scene-ar/llvm-6502.git
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1526278443
`parseBitcodeFile()` uses the generic `getLazyBitcodeFile()` function as a helper. Since `parseBitcodeFile()` isn't actually lazy -- it calls `MaterializeAllPermanently()` -- bypass the unnecessary call to `materializeForwardReferencedFunctions()` by extracting out a common helper function. This removes the last of the use-list churn caused by blockaddresses. This highlights that we can't reproduce use-list order of globals and constants when parsing lazily -- but that's necessarily out of scope. When we're parsing lazily, we never have all the functions in memory, so the use-lists of globals (and constants that reference globals) are always incomplete. This is part of PR5680. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@214581 91177308-0d34-0410-b5e6-96231b3b80d8
169 lines
3.3 KiB
LLVM
169 lines
3.3 KiB
LLVM
; RUN: verify-uselistorder < %s -preserve-bc-use-list-order
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@a = global [4 x i1] [i1 0, i1 1, i1 0, i1 1]
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@b = alias i1* getelementptr ([4 x i1]* @a, i64 0, i64 2)
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; Check use-list order of constants used by globals.
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@glob1 = global i5 7
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@glob2 = global i5 7
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@glob3 = global i5 7
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; Check use-list order between variables and aliases.
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@target = global i3 zeroinitializer
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@alias1 = alias i3* @target
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@alias2 = alias i3* @target
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@alias3 = alias i3* @target
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@var1 = global i3* @target
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@var2 = global i3* @target
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@var3 = global i3* @target
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; Check use-list order for a global when used both by a global and in a
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; function.
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@globalAndFunction = global i4 4
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@globalAndFunctionGlobalUser = global i4* @globalAndFunction
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; Check use-list order for constants used by globals that are themselves used
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; as aliases. This confirms that this globals are recognized as GlobalValues
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; (not general constants).
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@const.global = global i63 0
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@const.global.ptr = global i63* @const.global
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@const.global.2 = global i63 0
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; Same as above, but for aliases.
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@const.target = global i62 1
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@const.alias = alias i62* @const.target
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@const.alias.ptr = alias i62* @const.alias
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@const.alias.2 = alias i62* @const.target
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define i64 @f(i64 %f) {
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entry:
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%sum = add i64 %f, 0
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ret i64 %sum
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}
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define i64 @g(i64 %g) {
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entry:
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%sum = add i64 %g, 0
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ret i64 %sum
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}
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define i64 @h(i64 %h) {
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entry:
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%sum = add i64 %h, 0
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ret i64 %sum
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}
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define i64 @i(i64 %i) {
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entry:
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%sum = add i64 %i, 1
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ret i64 %sum
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}
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define i64 @j(i64 %j) {
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entry:
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%sum = add i64 %j, 1
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ret i64 %sum
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}
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define i64 @k(i64 %k) {
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entry:
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%sum = add i64 %k, 1
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ret i64 %sum
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}
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define i64 @l(i64 %l) {
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entry:
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%sum = add i64 %l, 1
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ret i64 %sum
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}
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define i1 @loadb() {
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entry:
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%b = load i1* @b
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ret i1 %b
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}
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define i1 @loada() {
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entry:
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%a = load i1* getelementptr ([4 x i1]* @a, i64 0, i64 2)
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ret i1 %a
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}
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define i32 @f32(i32 %a, i32 %b, i32 %c, i32 %d) {
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entry:
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br label %first
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second:
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%eh = mul i32 %e, %h
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%sum = add i32 %eh, %ef
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br label %exit
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exit:
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%product = phi i32 [%ef, %first], [%sum, %second]
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ret i32 %product
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first:
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%e = add i32 %a, 7
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%f = add i32 %b, 7
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%g = add i32 %c, 8
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%h = add i32 %d, 8
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%ef = mul i32 %e, %f
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%gh = mul i32 %g, %h
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%gotosecond = icmp slt i32 %gh, -9
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br i1 %gotosecond, label %second, label %exit
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}
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define i4 @globalAndFunctionFunctionUser() {
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entry:
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%local = load i4* @globalAndFunction
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ret i4 %local
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}
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; Check for when an instruction is its own user.
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define void @selfUser() {
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entry:
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ret void
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loop1:
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br label %loop2
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loop2:
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%var = phi i32 [ %var, %loop1 ], [ %var, %loop2 ]
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br label %loop1
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}
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; Check that block addresses work.
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@ba1 = constant i8* blockaddress (@bafunc1, %bb)
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@ba2 = constant i8* getelementptr (i8* blockaddress (@bafunc2, %bb), i61 0)
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@ba3 = constant i8* getelementptr (i8* blockaddress (@bafunc2, %bb), i61 0)
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define i8* @babefore() {
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ret i8* getelementptr (i8* blockaddress (@bafunc2, %bb), i61 0)
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bb1:
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ret i8* blockaddress (@bafunc1, %bb)
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bb2:
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ret i8* blockaddress (@bafunc3, %bb)
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}
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define void @bafunc1() {
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unreachable
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bb:
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unreachable
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}
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define void @bafunc2() {
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unreachable
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bb:
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unreachable
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}
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define void @bafunc3() {
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unreachable
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bb:
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unreachable
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}
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define i8* @baafter() {
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ret i8* blockaddress (@bafunc2, %bb)
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bb1:
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ret i8* blockaddress (@bafunc1, %bb)
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bb2:
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ret i8* blockaddress (@bafunc3, %bb)
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}
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