41d5033eb1
This enabled opaque pointers by default in LLVM. The effect of this is twofold: * If IR that contains *neither* explicit ptr nor %T* types is passed to tools, we will now use opaque pointer mode, unless -opaque-pointers=0 has been explicitly passed. * Users of LLVM as a library will now default to opaque pointers. It is possible to opt-out by calling setOpaquePointers(false) on LLVMContext. A cmake option to toggle this default will not be provided. Frontends or other tools that want to (temporarily) keep using typed pointers should disable opaque pointers via LLVMContext. Differential Revision: https://reviews.llvm.org/D126689
87 lines
2.5 KiB
LLVM
87 lines
2.5 KiB
LLVM
; RUN: opt < %s -S -partial-inliner -skip-partial-inlining-cost-analysis=true | FileCheck %s
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define i32 @callee_most(i32 %v) unnamed_addr #0 #1 {
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entry:
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%cmp = icmp sgt i32 %v, 2000
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br i1 %cmp, label %if.then, label %if.end
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if.then:
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br label %if.then2
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if.then2:
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%sub = sub i32 %v, 10
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br label %if.end
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if.end:
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%v2 = phi i32 [ %v, %entry ], [ %sub, %if.then2 ]
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%add = add nsw i32 %v2, 200
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ret i32 %add
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}
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define i32 @callee_noinline(i32 %v) optnone noinline {
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entry:
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%cmp = icmp sgt i32 %v, 2000
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br i1 %cmp, label %if.then, label %if.end
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if.then:
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br label %if.then2
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if.then2:
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%sub = sub i32 %v, 10
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br label %if.end
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if.end:
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%v2 = phi i32 [ %v, %entry ], [ %sub, %if.then2 ]
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%add = add nsw i32 %v2, 200
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ret i32 %add
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}
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define i32 @callee_writeonly(i32 %v) writeonly ssp {
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entry:
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%cmp = icmp sgt i32 %v, 2000
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br i1 %cmp, label %if.then, label %if.end
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if.then:
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br label %if.then2
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if.then2:
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%sub = sub i32 %v, 10
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br label %if.end
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if.end:
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%v2 = phi i32 [ %v, %entry ], [ %sub, %if.then2 ]
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%add = add nsw i32 %v2, 200
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ret i32 %add
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}
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; CHECK-LABEL: @caller
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; CHECK: call void @callee_most.2.if.then(i32 %v
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; CHECK: call i32 @callee_noinline(i32 %v)
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; CHECK: call void @callee_writeonly.1.if.then(i32 %v
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define i32 @caller(i32 %v) ssp {
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entry:
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%c1 = call i32 @callee_most(i32 %v)
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%c2 = call i32 @callee_noinline(i32 %v)
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%c3 = call i32 @callee_writeonly(i32 %v)
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ret i32 %c3
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}
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; CHECK: define internal void @callee_writeonly.1.if.then(i32 %v, ptr %sub.out) [[FN_ATTRS0:#[0-9]+]]
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; CHECK: define internal void @callee_most.2.if.then(i32 %v, ptr %sub.out) [[FN_ATTRS:#[0-9]+]]
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; attributes to preserve
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attributes #0 = {
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inlinehint minsize noduplicate noimplicitfloat norecurse noredzone nounwind
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nonlazybind optsize safestack sanitize_address sanitize_hwaddress sanitize_memory
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sanitize_thread ssp sspreq sspstrong uwtable "foo"="bar"
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"patchable-function"="prologue-short-redirect" "probe-stack"="_foo_guard" "stack-probe-size"="4096" }
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; CHECK: attributes [[FN_ATTRS0]] = { ssp
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; CHECK: attributes [[FN_ATTRS]] = { inlinehint minsize noduplicate noimplicitfloat norecurse noredzone nounwind nonlazybind optsize safestack sanitize_address sanitize_hwaddress sanitize_memory sanitize_thread ssp sspreq sspstrong uwtable "foo"="bar" "patchable-function"="prologue-short-redirect" "probe-stack"="_foo_guard" "stack-probe-size"="4096" }
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; attributes to drop
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attributes #1 = {
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alignstack=16 convergent inaccessiblememonly inaccessiblemem_or_argmemonly naked
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noreturn readonly argmemonly returns_twice speculatable "thunk"
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}
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