forked from OSchip/llvm-project
51 lines
1.3 KiB
LLVM
51 lines
1.3 KiB
LLVM
; RUN: opt < %s -early-cse-memssa -gvn-hoist -S | FileCheck %s
|
|
|
|
; Make sure opt doesn't crash. On top of that, the instructions
|
|
; of the side blocks should be hoisted to the entry block.
|
|
|
|
%s = type { i32, i64 }
|
|
%S = type { %s, i32 }
|
|
|
|
;CHECK-LABEL: @foo
|
|
|
|
define void @foo(i32* %arg) {
|
|
bb0:
|
|
%0 = bitcast i32* %arg to %S*
|
|
%call.idx.i = getelementptr %S, %S* %0, i64 0, i32 0, i32 0
|
|
%call.idx.val.i = load i32, i32* %call.idx.i
|
|
br label %bb1
|
|
|
|
;CHECK: bb1:
|
|
;CHECK: %call264 = call zeroext i1 @bar
|
|
;CHECK: store i32 %call.idx.val.i, i32* %call.idx.i
|
|
;CHECK: %1 = getelementptr inbounds %S, %S* %0, i64 0, i32 0, i32 1
|
|
;CHECK: store i64 undef, i64* %1
|
|
;CHECK: br i1 %call264, label %bb2, label %bb3
|
|
|
|
bb1:
|
|
%call264 = call zeroext i1 @bar()
|
|
br i1 %call264, label %bb2, label %bb3
|
|
|
|
;CHECK: bb2:
|
|
;CHECK-NOT: store i32 %call.idx.val.i, i32* %call.idx.i
|
|
;CHECK-NOT: store i64 undef, i64* %{.*}
|
|
|
|
bb2:
|
|
store i32 %call.idx.val.i, i32* %call.idx.i
|
|
%1 = getelementptr inbounds %S, %S* %0, i64 0, i32 0, i32 1
|
|
store i64 undef, i64* %1
|
|
ret void
|
|
|
|
;CHECK: bb3:
|
|
;CHECK-NOT: store i32 %call.idx.val.i, i32* %call.idx.i
|
|
;CHECK-NOT: store i64 undef, i64* %{.*}
|
|
|
|
bb3:
|
|
store i32 %call.idx.val.i, i32* %call.idx.i
|
|
%2 = getelementptr inbounds %S, %S* %0, i64 0, i32 0, i32 1
|
|
store i64 undef, i64* %2
|
|
ret void
|
|
}
|
|
|
|
declare zeroext i1 @bar()
|