07253bc8c0
Using https://gist.github.com/nikic/98357b71fd67756b0f064c9517b62a34. The opaque pointer migration resolves the TODO on test_fence3: The transform now works as expected by dint of the bitcast no longer existing.
32 lines
836 B
LLVM
32 lines
836 B
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
|
|
; RUN: opt -S -passes='early-cse<memssa>,loop-mssa(licm)' < %s | FileCheck %s
|
|
|
|
; This used to assert because was have a MemoryDef for what turns out to be
|
|
; a readnone call after EarlyCSE.
|
|
|
|
@fn_ptr = external global ptr, align 1
|
|
|
|
define void @test() {
|
|
; CHECK-LABEL: @test(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: br label [[DO_BODY:%.*]]
|
|
; CHECK: do.body:
|
|
; CHECK-NEXT: store ptr @readnone_fn, ptr @fn_ptr, align 8
|
|
; CHECK-NEXT: call void @readnone_fn()
|
|
; CHECK-NEXT: call void @foo()
|
|
; CHECK-NEXT: br label [[DO_BODY]]
|
|
;
|
|
entry:
|
|
br label %do.body
|
|
|
|
do.body:
|
|
store ptr @readnone_fn, ptr @fn_ptr
|
|
%fn = load ptr, ptr @fn_ptr
|
|
call void %fn()
|
|
call void @foo()
|
|
br label %do.body
|
|
}
|
|
|
|
declare void @foo()
|
|
declare void @readnone_fn() readnone
|