ab15976173
This reapplies #119138 with a defensive fix for the assertion failure when building libcxx. Unfortunately the failure does not reproduce on my machine, so I am not able to extract a test case. The key insight for the fix comes from Jessica Clarke, who observes that `VTablePtr` may, in fact, not be a pointer on return from `FindAvailableLoadedValue`. Co-authored-by: Alexander Richardson <alexander.richardson@cl.cam.ac.uk>
49 lines
2.0 KiB
LLVM
49 lines
2.0 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --scrub-attributes
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; RUN: opt -S -passes=inline < %s | FileCheck %s
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;; Check that we correctly use the index size when accumulating offsets during CallPromotion
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target datalayout = "p200:128:128:128:64-A200-P200-G200"
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define void @test(ptr addrspace(200) %arg1, ptr addrspace(200) %arg2) local_unnamed_addr addrspace(200) {
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; CHECK-LABEL: define {{[^@]+}}@test
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; CHECK-SAME: (ptr addrspace(200) [[ARG1:%.*]], ptr addrspace(200) [[ARG2:%.*]]) local_unnamed_addr addrspace(200) {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[TMP0:%.*]] = load ptr addrspace(200), ptr addrspace(200) [[ARG2]], align 16
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; CHECK-NEXT: call addrspace(200) void [[TMP0]](ptr addrspace(200) [[ARG1]])
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; CHECK-NEXT: ret void
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;
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entry:
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call void @call_fnptr(ptr addrspace(200) %arg1, ptr addrspace(200) %arg2)
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ret void
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}
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define internal void @call_fnptr(ptr addrspace(200) %this, ptr addrspace(200) %arg) unnamed_addr addrspace(200) align 2 {
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entry:
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%0 = load ptr addrspace(200), ptr addrspace(200) %arg, align 16
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call void %0(ptr addrspace(200) %this)
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ret void
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}
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define void @test2(ptr addrspace(200) %this) local_unnamed_addr addrspace(200) {
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; CHECK-LABEL: define {{[^@]+}}@test2
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; CHECK-SAME: (ptr addrspace(200) [[THIS:%.*]]) local_unnamed_addr addrspace(200) {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[VTABLE_I:%.*]] = load ptr addrspace(200), ptr addrspace(200) [[THIS]], align 16
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; CHECK-NEXT: [[FN_I:%.*]] = load ptr addrspace(200), ptr addrspace(200) [[VTABLE_I]], align 16
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; CHECK-NEXT: call addrspace(200) void [[FN_I]](ptr addrspace(200) [[THIS]])
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; CHECK-NEXT: ret void
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;
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entry:
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call void @call_via_vtable(ptr addrspace(200) %this)
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ret void
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}
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define internal void @call_via_vtable(ptr addrspace(200) %this) unnamed_addr addrspace(200) {
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entry:
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%vtable = load ptr addrspace(200), ptr addrspace(200) %this, align 16
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%fn = load ptr addrspace(200), ptr addrspace(200) %vtable, align 16
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call void %fn(ptr addrspace(200) %this)
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ret void
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}
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