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llvm-mirror/test/Transforms/GVN/pre-new-inst.ll
Eric Christopher a62270de2c Revert "Temporarily Revert "Add basic loop fusion pass.""
The reversion apparently deleted the test/Transforms directory.

Will be re-reverting again.

llvm-svn: 358552
2019-04-17 04:52:47 +00:00

30 lines
639 B
LLVM

; RUN: opt -basicaa -gvn -S %s | FileCheck %s
%MyStruct = type { i32, i32 }
define i8 @foo(i64 %in, i8* %arr) {
%addr = alloca %MyStruct
%dead = trunc i64 %in to i32
br i1 undef, label %next, label %tmp
tmp:
call void @bar()
br label %next
next:
%addr64 = bitcast %MyStruct* %addr to i64*
store i64 %in, i64* %addr64
br label %final
final:
%addr32 = getelementptr %MyStruct, %MyStruct* %addr, i32 0, i32 0
%idx32 = load i32, i32* %addr32
; CHECK: %resptr = getelementptr i8, i8* %arr, i32 %dead
%resptr = getelementptr i8, i8* %arr, i32 %idx32
%res = load i8, i8* %resptr
ret i8 %res
}
declare void @bar()