diff --git a/llvm/test/Transforms/DeadStoreElimination/captures-before-call.ll b/llvm/test/Transforms/DeadStoreElimination/captures-before-call.ll
new file mode 100644
index 00000000000000..0fa2a2da2fc518
--- /dev/null
+++ b/llvm/test/Transforms/DeadStoreElimination/captures-before-call.ll
@@ -0,0 +1,643 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
+; RUN: opt -passes='dse' -S %s | FileCheck %s
+
+target datalayout = "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
+
+; Test case from PR50220.
+define i32 @other_value_escapes_before_call() {
+; CHECK-LABEL: @other_value_escapes_before_call(
+; CHECK-NEXT:  entry:
+; CHECK-NEXT:    [[V1:%.*]] = alloca i32, align 4
+; CHECK-NEXT:    [[V2:%.*]] = alloca i32, align 4
+; CHECK-NEXT:    store i32 0, i32* [[V1]], align 4
+; CHECK-NEXT:    call void @escape(i32* nonnull [[V1]])
+; CHECK-NEXT:    store i32 55555, i32* [[V2]], align 4
+; CHECK-NEXT:    [[CALL:%.*]] = call i32 @getval()
+; CHECK-NEXT:    store i32 [[CALL]], i32* [[V2]], align 4
+; CHECK-NEXT:    call void @escape(i32* nonnull [[V2]])
+; CHECK-NEXT:    [[LOAD_V2:%.*]] = load i32, i32* [[V2]], align 4
+; CHECK-NEXT:    [[LOAD_V1:%.*]] = load i32, i32* [[V1]], align 4
+; CHECK-NEXT:    [[ADD:%.*]] = add nsw i32 [[LOAD_V2]], [[LOAD_V1]]
+; CHECK-NEXT:    ret i32 [[ADD]]
+;
+entry:
+  %v1 = alloca i32, align 4
+  %v2 = alloca i32, align 4
+  store i32 0, i32* %v1, align 4
+  call void @escape(i32* nonnull %v1)
+  store i32 55555, i32* %v2, align 4
+  %call = call i32 @getval()
+  store i32 %call, i32* %v2, align 4
+  call void @escape(i32* nonnull %v2)
+  %load.v2 = load i32, i32* %v2, align 4
+  %load.v1 = load i32, i32* %v1, align 4
+  %add = add nsw i32 %load.v2, %load.v1
+  ret i32 %add
+}
+
+declare void @escape(i32*)
+
+declare i32 @getval()
+
+declare void @escape_and_clobber(i32*)
+declare void @escape_writeonly(i32*) writeonly
+declare void @clobber()
+
+define i32 @test_not_captured_before_call_same_bb(i32** %in.ptr) {
+; CHECK-LABEL: @test_not_captured_before_call_same_bb(
+; CHECK-NEXT:    [[A:%.*]] = alloca i32, align 4
+; CHECK-NEXT:    store i32 55, i32* [[A]], align 4
+; CHECK-NEXT:    [[R:%.*]] = call i32 @getval()
+; CHECK-NEXT:    store i32 99, i32* [[A]], align 4
+; CHECK-NEXT:    call void @escape_and_clobber(i32* [[A]])
+; CHECK-NEXT:    ret i32 [[R]]
+;
+  %a = alloca i32, align 4
+  store i32 55, i32* %a
+  %r = call i32 @getval()
+  store i32 99, i32* %a, align 4
+  call void @escape_and_clobber(i32* %a)
+  ret i32 %r
+}
+
+define i32 @test_not_captured_before_call_same_bb_escape_unreachable_block(i32** %in.ptr) {
+; CHECK-LABEL: @test_not_captured_before_call_same_bb_escape_unreachable_block(
+; CHECK-NEXT:    [[A:%.*]] = alloca i32, align 4
+; CHECK-NEXT:    store i32 55, i32* [[A]], align 4
+; CHECK-NEXT:    [[R:%.*]] = call i32 @getval()
+; CHECK-NEXT:    store i32 99, i32* [[A]], align 4
+; CHECK-NEXT:    call void @escape_and_clobber(i32* [[A]])
+; CHECK-NEXT:    ret i32 [[R]]
+; CHECK:       unreach:
+; CHECK-NEXT:    call void @escape_and_clobber(i32* [[A]])
+; CHECK-NEXT:    ret i32 0
+;
+  %a = alloca i32, align 4
+  store i32 55, i32* %a
+  %r = call i32 @getval()
+  store i32 99, i32* %a, align 4
+  call void @escape_and_clobber(i32* %a)
+  ret i32 %r
+
+unreach:
+  call void @escape_and_clobber(i32* %a)
+  ret i32 0
+}
+
+define i32 @test_captured_and_clobbered_after_load_same_bb_2(i32** %in.ptr) {
+; CHECK-LABEL: @test_captured_and_clobbered_after_load_same_bb_2(
+; CHECK-NEXT:    [[A:%.*]] = alloca i32, align 4
+; CHECK-NEXT:    store i32 55, i32* [[A]], align 4
+; CHECK-NEXT:    [[IN_LV_1:%.*]] = load i32*, i32** [[IN_PTR:%.*]], align 2
+; CHECK-NEXT:    [[IN_LV_2:%.*]] = load i32, i32* [[IN_LV_1]], align 2
+; CHECK-NEXT:    call void @escape_and_clobber(i32* [[A]])
+; CHECK-NEXT:    store i32 99, i32* [[A]], align 4
+; CHECK-NEXT:    call void @clobber()
+; CHECK-NEXT:    ret i32 [[IN_LV_2]]
+;
+  %a = alloca i32, align 4
+  store i32 55, i32* %a
+  %in.lv.1 = load i32* , i32** %in.ptr, align 2
+  %in.lv.2 = load i32 , i32* %in.lv.1, align 2
+  call void @escape_and_clobber(i32* %a)
+  store i32 99, i32* %a, align 4
+  call void @clobber()
+  ret i32 %in.lv.2
+}
+
+define i32 @test_captured_after_call_same_bb_2_clobbered_later(i32** %in.ptr) {
+; CHECK-LABEL: @test_captured_after_call_same_bb_2_clobbered_later(
+; CHECK-NEXT:    [[A:%.*]] = alloca i32, align 4
+; CHECK-NEXT:    store i32 55, i32* [[A]], align 4
+; CHECK-NEXT:    [[R:%.*]] = call i32 @getval()
+; CHECK-NEXT:    call void @escape_writeonly(i32* [[A]])
+; CHECK-NEXT:    store i32 99, i32* [[A]], align 4
+; CHECK-NEXT:    call void @clobber()
+; CHECK-NEXT:    ret i32 [[R]]
+;
+  %a = alloca i32, align 4
+  store i32 55, i32* %a
+  %r = call i32 @getval()
+  call void @escape_writeonly(i32* %a)
+  store i32 99, i32* %a, align 4
+  call void @clobber()
+  ret i32 %r
+}
+
+define i32 @test_captured_sibling_path_to_call_other_blocks_1(i32** %in.ptr, i1 %c.1) {
+; CHECK-LABEL: @test_captured_sibling_path_to_call_other_blocks_1(
+; CHECK-NEXT:    [[A:%.*]] = alloca i32, align 4
+; CHECK-NEXT:    store i32 55, i32* [[A]], align 4
+; CHECK-NEXT:    br i1 [[C_1:%.*]], label [[THEN:%.*]], label [[ELSE:%.*]]
+; CHECK:       then:
+; CHECK-NEXT:    call void @escape_writeonly(i32* [[A]])
+; CHECK-NEXT:    br label [[EXIT:%.*]]
+; CHECK:       else:
+; CHECK-NEXT:    [[R:%.*]] = call i32 @getval()
+; CHECK-NEXT:    br label [[EXIT]]
+; CHECK:       exit:
+; CHECK-NEXT:    [[P:%.*]] = phi i32 [ 0, [[THEN]] ], [ [[R]], [[ELSE]] ]
+; CHECK-NEXT:    store i32 99, i32* [[A]], align 4
+; CHECK-NEXT:    call void @clobber()
+; CHECK-NEXT:    ret i32 [[P]]
+;
+  %a = alloca i32, align 4
+  store i32 55, i32* %a
+  br i1 %c.1, label %then, label %else
+
+then:
+  call void @escape_writeonly(i32* %a)
+  br label %exit
+
+else:
+  %r = call i32 @getval()
+  br label %exit
+
+exit:
+  %p = phi i32 [ 0, %then ], [ %r, %else ]
+  store i32 99, i32* %a, align 4
+  call void @clobber()
+  ret i32 %p
+}
+
+define i32 @test_captured_before_call_other_blocks_2(i32** %in.ptr, i1 %c.1) {
+; CHECK-LABEL: @test_captured_before_call_other_blocks_2(
+; CHECK-NEXT:    [[A:%.*]] = alloca i32, align 4
+; CHECK-NEXT:    store i32 55, i32* [[A]], align 4
+; CHECK-NEXT:    br i1 [[C_1:%.*]], label [[THEN:%.*]], label [[ELSE:%.*]]
+; CHECK:       then:
+; CHECK-NEXT:    br label [[EXIT:%.*]]
+; CHECK:       else:
+; CHECK-NEXT:    call void @escape_and_clobber(i32* [[A]])
+; CHECK-NEXT:    [[R:%.*]] = call i32 @getval()
+; CHECK-NEXT:    br label [[EXIT]]
+; CHECK:       exit:
+; CHECK-NEXT:    [[P:%.*]] = phi i32 [ 0, [[THEN]] ], [ [[R]], [[ELSE]] ]
+; CHECK-NEXT:    store i32 99, i32* [[A]], align 4
+; CHECK-NEXT:    call void @clobber()
+; CHECK-NEXT:    ret i32 [[P]]
+;
+  %a = alloca i32, align 4
+  store i32 55, i32* %a
+  br i1 %c.1, label %then, label %else
+
+then:
+  br label %exit
+
+else:
+  call void @escape_and_clobber(i32* %a)
+  %r = call i32 @getval()
+  br label %exit
+
+exit:
+  %p = phi i32 [ 0, %then ], [ %r, %else ]
+  store i32 99, i32* %a, align 4
+  call void @clobber()
+  ret i32 %p
+}
+
+define i32 @test_captured_before_call_other_blocks_4(i32** %in.ptr, i1 %c.1) {
+; CHECK-LABEL: @test_captured_before_call_other_blocks_4(
+; CHECK-NEXT:  entry:
+; CHECK-NEXT:    [[A:%.*]] = alloca i32, align 4
+; CHECK-NEXT:    store i32 55, i32* [[A]], align 4
+; CHECK-NEXT:    call void @escape_writeonly(i32* [[A]])
+; CHECK-NEXT:    [[R:%.*]] = call i32 @getval()
+; CHECK-NEXT:    br i1 [[C_1:%.*]], label [[THEN:%.*]], label [[EXIT:%.*]]
+; CHECK:       then:
+; CHECK-NEXT:    call void @escape_writeonly(i32* [[A]])
+; CHECK-NEXT:    br label [[EXIT]]
+; CHECK:       exit:
+; CHECK-NEXT:    [[P:%.*]] = phi i32 [ 0, [[THEN]] ], [ [[R]], [[ENTRY:%.*]] ]
+; CHECK-NEXT:    store i32 99, i32* [[A]], align 4
+; CHECK-NEXT:    call void @clobber()
+; CHECK-NEXT:    ret i32 [[P]]
+;
+entry:
+  %a = alloca i32, align 4
+  store i32 55, i32* %a
+  call void @escape_writeonly(i32* %a)
+  %r = call i32 @getval()
+  br i1 %c.1, label %then, label %exit
+
+then:
+  call void @escape_writeonly(i32* %a)
+  br label %exit
+
+exit:
+  %p = phi i32 [ 0, %then ], [ %r, %entry ]
+  store i32 99, i32* %a, align 4
+  call void @clobber()
+  ret i32 %p
+}
+
+define i32 @test_captured_before_call_other_blocks_5(i32** %in.ptr, i1 %c.1) {
+; CHECK-LABEL: @test_captured_before_call_other_blocks_5(
+; CHECK-NEXT:  entry:
+; CHECK-NEXT:    [[A:%.*]] = alloca i32, align 4
+; CHECK-NEXT:    store i32 55, i32* [[A]], align 4
+; CHECK-NEXT:    br i1 [[C_1:%.*]], label [[THEN:%.*]], label [[EXIT:%.*]]
+; CHECK:       then:
+; CHECK-NEXT:    call void @escape_writeonly(i32* [[A]])
+; CHECK-NEXT:    br label [[EXIT]]
+; CHECK:       exit:
+; CHECK-NEXT:    [[R:%.*]] = call i32 @getval()
+; CHECK-NEXT:    store i32 99, i32* [[A]], align 4
+; CHECK-NEXT:    call void @clobber()
+; CHECK-NEXT:    ret i32 [[R]]
+;
+entry:
+  %a = alloca i32, align 4
+  store i32 55, i32* %a
+  br i1 %c.1, label %then, label %exit
+
+then:
+  call void @escape_writeonly(i32* %a)
+  br label %exit
+
+exit:
+  %r = call i32 @getval()
+  store i32 99, i32* %a, align 4
+  call void @clobber()
+  ret i32 %r
+}
+
+define i32 @test_captured_before_call_other_blocks_6(i32** %in.ptr, i1 %c.1) {
+; CHECK-LABEL: @test_captured_before_call_other_blocks_6(
+; CHECK-NEXT:  entry:
+; CHECK-NEXT:    [[A:%.*]] = alloca i32, align 4
+; CHECK-NEXT:    store i32 55, i32* [[A]], align 4
+; CHECK-NEXT:    br i1 [[C_1:%.*]], label [[THEN:%.*]], label [[EXIT:%.*]]
+; CHECK:       then:
+; CHECK-NEXT:    call void @escape_writeonly(i32* [[A]])
+; CHECK-NEXT:    br label [[EXIT]]
+; CHECK:       exit:
+; CHECK-NEXT:    [[R:%.*]] = call i32 @getval()
+; CHECK-NEXT:    store i32 99, i32* [[A]], align 4
+; CHECK-NEXT:    call void @escape_writeonly(i32* [[A]])
+; CHECK-NEXT:    call void @clobber()
+; CHECK-NEXT:    ret i32 [[R]]
+;
+entry:
+  %a = alloca i32, align 4
+  store i32 55, i32* %a
+  br i1 %c.1, label %then, label %exit
+
+then:
+  call void @escape_writeonly(i32* %a)
+  br label %exit
+
+exit:
+  %r = call i32 @getval()
+  store i32 99, i32* %a, align 4
+  call void @escape_writeonly(i32* %a)
+  call void @clobber()
+  ret i32 %r
+}
+
+define i32 @test_not_captured_before_call_other_blocks_1(i32** %in.ptr, i1 %c.1) {
+; CHECK-LABEL: @test_not_captured_before_call_other_blocks_1(
+; CHECK-NEXT:    [[A:%.*]] = alloca i32, align 4
+; CHECK-NEXT:    store i32 55, i32* [[A]], align 4
+; CHECK-NEXT:    [[R:%.*]] = call i32 @getval()
+; CHECK-NEXT:    store i32 99, i32* [[A]], align 4
+; CHECK-NEXT:    br i1 [[C_1:%.*]], label [[THEN:%.*]], label [[ELSE:%.*]]
+; CHECK:       then:
+; CHECK-NEXT:    br label [[EXIT:%.*]]
+; CHECK:       else:
+; CHECK-NEXT:    br label [[EXIT]]
+; CHECK:       exit:
+; CHECK-NEXT:    call void @escape_and_clobber(i32* [[A]])
+; CHECK-NEXT:    ret i32 [[R]]
+;
+  %a = alloca i32, align 4
+  store i32 55, i32* %a
+  %r = call i32 @getval()
+  store i32 99, i32* %a, align 4
+  br i1 %c.1, label %then, label %else
+
+then:
+  br label %exit
+
+else:
+  br label %exit
+
+exit:
+  call void @escape_and_clobber(i32* %a)
+  ret i32 %r
+}
+
+define i32 @test_not_captured_before_call_other_blocks_2(i32** %in.ptr, i1 %c.1) {
+; CHECK-LABEL: @test_not_captured_before_call_other_blocks_2(
+; CHECK-NEXT:    [[A:%.*]] = alloca i32, align 4
+; CHECK-NEXT:    store i32 55, i32* [[A]], align 4
+; CHECK-NEXT:    [[R:%.*]] = call i32 @getval()
+; CHECK-NEXT:    store i32 99, i32* [[A]], align 4
+; CHECK-NEXT:    br i1 [[C_1:%.*]], label [[THEN:%.*]], label [[ELSE:%.*]]
+; CHECK:       then:
+; CHECK-NEXT:    call void @escape_and_clobber(i32* [[A]])
+; CHECK-NEXT:    br label [[EXIT:%.*]]
+; CHECK:       else:
+; CHECK-NEXT:    call void @escape_and_clobber(i32* [[A]])
+; CHECK-NEXT:    br label [[EXIT]]
+; CHECK:       exit:
+; CHECK-NEXT:    ret i32 [[R]]
+;
+  %a = alloca i32, align 4
+  store i32 55, i32* %a
+  %r = call i32 @getval()
+  store i32 99, i32* %a, align 4
+  br i1 %c.1, label %then, label %else
+
+then:
+  call void @escape_and_clobber(i32* %a)
+  br label %exit
+
+else:
+  call void @escape_and_clobber(i32* %a)
+  br label %exit
+
+exit:
+  ret i32 %r
+}
+
+define i32 @test_not_captured_before_call_other_blocks_3(i32** %in.ptr, i1 %c.1) {
+; CHECK-LABEL: @test_not_captured_before_call_other_blocks_3(
+; CHECK-NEXT:    [[A:%.*]] = alloca i32, align 4
+; CHECK-NEXT:    store i32 55, i32* [[A]], align 4
+; CHECK-NEXT:    [[R:%.*]] = call i32 @getval()
+; CHECK-NEXT:    store i32 99, i32* [[A]], align 4
+; CHECK-NEXT:    br i1 [[C_1:%.*]], label [[THEN:%.*]], label [[ELSE:%.*]]
+; CHECK:       then:
+; CHECK-NEXT:    call void @escape_and_clobber(i32* [[A]])
+; CHECK-NEXT:    br label [[EXIT:%.*]]
+; CHECK:       else:
+; CHECK-NEXT:    br label [[EXIT]]
+; CHECK:       exit:
+; CHECK-NEXT:    ret i32 [[R]]
+;
+  %a = alloca i32, align 4
+  store i32 55, i32* %a
+  %r = call i32 @getval()
+  store i32 99, i32* %a, align 4
+  br i1 %c.1, label %then, label %else
+
+then:
+  call void @escape_and_clobber(i32* %a)
+  br label %exit
+
+else:
+  br label %exit
+
+exit:
+  ret i32 %r
+}
+
+define i32 @test_not_captured_before_call_other_blocks_4(i32** %in.ptr, i1 %c.1) {
+; CHECK-LABEL: @test_not_captured_before_call_other_blocks_4(
+; CHECK-NEXT:    [[A:%.*]] = alloca i32, align 4
+; CHECK-NEXT:    store i32 55, i32* [[A]], align 4
+; CHECK-NEXT:    br i1 [[C_1:%.*]], label [[THEN:%.*]], label [[ELSE:%.*]]
+; CHECK:       then:
+; CHECK-NEXT:    br label [[EXIT:%.*]]
+; CHECK:       else:
+; CHECK-NEXT:    [[R:%.*]] = call i32 @getval()
+; CHECK-NEXT:    call void @escape_writeonly(i32* [[A]])
+; CHECK-NEXT:    br label [[EXIT]]
+; CHECK:       exit:
+; CHECK-NEXT:    [[P:%.*]] = phi i32 [ 0, [[THEN]] ], [ [[R]], [[ELSE]] ]
+; CHECK-NEXT:    store i32 99, i32* [[A]], align 4
+; CHECK-NEXT:    call void @clobber()
+; CHECK-NEXT:    ret i32 [[P]]
+;
+  %a = alloca i32, align 4
+  store i32 55, i32* %a
+  br i1 %c.1, label %then, label %else
+
+then:
+  br label %exit
+
+else:
+  %r = call i32 @getval()
+  call void @escape_writeonly(i32* %a)
+  br label %exit
+
+exit:
+  %p = phi i32 [ 0, %then ], [ %r, %else ]
+  store i32 99, i32* %a, align 4
+  call void @clobber()
+  ret i32 %p
+}
+
+define i32 @test_not_captured_before_call_other_blocks_5(i32** %in.ptr, i1 %c.1) {
+; CHECK-LABEL: @test_not_captured_before_call_other_blocks_5(
+; CHECK-NEXT:  entry:
+; CHECK-NEXT:    [[A:%.*]] = alloca i32, align 4
+; CHECK-NEXT:    store i32 55, i32* [[A]], align 4
+; CHECK-NEXT:    br i1 [[C_1:%.*]], label [[THEN:%.*]], label [[EXIT:%.*]]
+; CHECK:       then:
+; CHECK-NEXT:    [[R:%.*]] = call i32 @getval()
+; CHECK-NEXT:    call void @escape_writeonly(i32* [[A]])
+; CHECK-NEXT:    br label [[EXIT]]
+; CHECK:       exit:
+; CHECK-NEXT:    [[P:%.*]] = phi i32 [ [[R]], [[THEN]] ], [ 0, [[ENTRY:%.*]] ]
+; CHECK-NEXT:    store i32 99, i32* [[A]], align 4
+; CHECK-NEXT:    call void @clobber()
+; CHECK-NEXT:    ret i32 [[P]]
+;
+entry:
+  %a = alloca i32, align 4
+  store i32 55, i32* %a
+  br i1 %c.1, label %then, label %exit
+
+then:
+  %r = call i32 @getval()
+  call void @escape_writeonly(i32* %a)
+  br label %exit
+
+exit:
+  %p = phi i32 [ %r, %then ], [ 0, %entry ]
+  store i32 99, i32* %a, align 4
+  call void @clobber()
+  ret i32 %p
+}
+
+define i32 @test_not_captured_before_call_other_blocks_6(i32** %in.ptr, i1 %c.1) {
+; CHECK-LABEL: @test_not_captured_before_call_other_blocks_6(
+; CHECK-NEXT:  entry:
+; CHECK-NEXT:    [[A:%.*]] = alloca i32, align 4
+; CHECK-NEXT:    store i32 55, i32* [[A]], align 4
+; CHECK-NEXT:    br i1 [[C_1:%.*]], label [[THEN:%.*]], label [[EXIT:%.*]]
+; CHECK:       then:
+; CHECK-NEXT:    [[R:%.*]] = call i32 @getval()
+; CHECK-NEXT:    call void @escape_writeonly(i32* [[A]])
+; CHECK-NEXT:    br label [[EXIT]]
+; CHECK:       exit:
+; CHECK-NEXT:    [[P:%.*]] = phi i32 [ [[R]], [[THEN]] ], [ 0, [[ENTRY:%.*]] ]
+; CHECK-NEXT:    store i32 99, i32* [[A]], align 4
+; CHECK-NEXT:    call void @escape_writeonly(i32* [[A]])
+; CHECK-NEXT:    call void @clobber()
+; CHECK-NEXT:    ret i32 [[P]]
+;
+entry:
+  %a = alloca i32, align 4
+  store i32 55, i32* %a
+  br i1 %c.1, label %then, label %exit
+
+then:
+  %r = call i32 @getval()
+  call void @escape_writeonly(i32* %a)
+  br label %exit
+
+exit:
+  %p = phi i32 [ %r, %then ], [ 0, %entry ]
+  store i32 99, i32* %a, align 4
+  call void @escape_writeonly(i32* %a)
+  call void @clobber()
+  ret i32 %p
+}
+
+define i32 @test_not_captured_before_call_other_blocks_7(i32** %in.ptr, i1 %c.1) {
+; CHECK-LABEL: @test_not_captured_before_call_other_blocks_7(
+; CHECK-NEXT:  entry:
+; CHECK-NEXT:    [[A:%.*]] = alloca i32, align 4
+; CHECK-NEXT:    store i32 55, i32* [[A]], align 4
+; CHECK-NEXT:    [[R:%.*]] = call i32 @getval()
+; CHECK-NEXT:    call void @escape_writeonly(i32* [[A]])
+; CHECK-NEXT:    br i1 [[C_1:%.*]], label [[THEN:%.*]], label [[EXIT:%.*]]
+; CHECK:       then:
+; CHECK-NEXT:    call void @escape_writeonly(i32* [[A]])
+; CHECK-NEXT:    br label [[EXIT]]
+; CHECK:       exit:
+; CHECK-NEXT:    [[P:%.*]] = phi i32 [ 0, [[THEN]] ], [ [[R]], [[ENTRY:%.*]] ]
+; CHECK-NEXT:    store i32 99, i32* [[A]], align 4
+; CHECK-NEXT:    call void @clobber()
+; CHECK-NEXT:    ret i32 [[P]]
+;
+entry:
+  %a = alloca i32, align 4
+  store i32 55, i32* %a
+  %r = call i32 @getval()
+  call void @escape_writeonly(i32* %a)
+  br i1 %c.1, label %then, label %exit
+
+then:
+  call void @escape_writeonly(i32* %a)
+  br label %exit
+
+exit:
+  %p = phi i32 [ 0, %then ], [ %r, %entry ]
+  store i32 99, i32* %a, align 4
+  call void @clobber()
+  ret i32 %p
+}
+
+define i32 @test_not_captured_before_call_same_bb_but_read(i32** %in.ptr) {
+; CHECK-LABEL: @test_not_captured_before_call_same_bb_but_read(
+; CHECK-NEXT:    [[A:%.*]] = alloca i32, align 4
+; CHECK-NEXT:    store i32 55, i32* [[A]], align 4
+; CHECK-NEXT:    [[R:%.*]] = call i32 @getval()
+; CHECK-NEXT:    [[LV:%.*]] = load i32, i32* [[A]], align 4
+; CHECK-NEXT:    store i32 99, i32* [[A]], align 4
+; CHECK-NEXT:    call void @escape_and_clobber(i32* [[A]])
+; CHECK-NEXT:    [[RES:%.*]] = add i32 [[R]], [[LV]]
+; CHECK-NEXT:    ret i32 [[RES]]
+;
+  %a = alloca i32, align 4
+  store i32 55, i32* %a
+  %r = call i32 @getval()
+  %lv = load i32, i32* %a
+  store i32 99, i32* %a, align 4
+  call void @escape_and_clobber(i32* %a)
+  %res = add i32 %r, %lv
+  ret i32 %res
+}
+
+define i32 @test_captured_after_loop(i32** %in.ptr, i1 %c.1) {
+; CHECK-LABEL: @test_captured_after_loop(
+; CHECK-NEXT:    [[A:%.*]] = alloca i32, align 4
+; CHECK-NEXT:    store i32 55, i32* [[A]], align 4
+; CHECK-NEXT:    br label [[LOOP:%.*]]
+; CHECK:       loop:
+; CHECK-NEXT:    [[IN_LV_1:%.*]] = load i32*, i32** [[IN_PTR:%.*]], align 2
+; CHECK-NEXT:    [[IN_LV_2:%.*]] = load i32, i32* [[IN_LV_1]], align 2
+; CHECK-NEXT:    store i32 99, i32* [[A]], align 4
+; CHECK-NEXT:    br i1 [[C_1:%.*]], label [[LOOP]], label [[EXIT:%.*]]
+; CHECK:       exit:
+; CHECK-NEXT:    call void @escape_and_clobber(i32* [[A]])
+; CHECK-NEXT:    ret i32 [[IN_LV_2]]
+;
+  %a = alloca i32, align 4
+  store i32 55, i32* %a
+  br label %loop
+
+loop:
+  %in.lv.1 = load i32* , i32** %in.ptr, align 2
+  %in.lv.2 = load i32 , i32* %in.lv.1, align 2
+  store i32 99, i32* %a, align 4
+  br i1 %c.1, label %loop, label %exit
+
+exit:
+  call void @escape_and_clobber(i32* %a)
+  ret i32 %in.lv.2
+}
+
+define i32 @test_captured_in_loop(i32** %in.ptr, i1 %c.1) {
+; CHECK-LABEL: @test_captured_in_loop(
+; CHECK-NEXT:    [[A:%.*]] = alloca i32, align 4
+; CHECK-NEXT:    store i32 55, i32* [[A]], align 4
+; CHECK-NEXT:    br label [[LOOP:%.*]]
+; CHECK:       loop:
+; CHECK-NEXT:    [[IN_LV_1:%.*]] = load i32*, i32** [[IN_PTR:%.*]], align 2
+; CHECK-NEXT:    [[IN_LV_2:%.*]] = load i32, i32* [[IN_LV_1]], align 2
+; CHECK-NEXT:    call void @escape_writeonly(i32* [[A]])
+; CHECK-NEXT:    store i32 99, i32* [[A]], align 4
+; CHECK-NEXT:    br i1 [[C_1:%.*]], label [[LOOP]], label [[EXIT:%.*]]
+; CHECK:       exit:
+; CHECK-NEXT:    call void @escape_and_clobber(i32* [[A]])
+; CHECK-NEXT:    ret i32 [[IN_LV_2]]
+;
+  %a = alloca i32, align 4
+  store i32 55, i32* %a
+  br label %loop
+
+loop:
+  %in.lv.1 = load i32* , i32** %in.ptr, align 2
+  %in.lv.2 = load i32 , i32* %in.lv.1, align 2
+  call void @escape_writeonly(i32* %a)
+  store i32 99, i32* %a, align 4
+  br i1 %c.1, label %loop, label %exit
+
+exit:
+  call void @escape_and_clobber(i32* %a)
+  ret i32 %in.lv.2
+}
+
+declare void @llvm.memcpy.p0i8.p0i8.i64(i8*, i8*, i64, i1)
+define void @test_escaping_store_removed(i8* %src, i64** %escape) {
+; CHECK-LABEL: @test_escaping_store_removed(
+; CHECK-NEXT:  bb:
+; CHECK-NEXT:    [[A:%.*]] = alloca i64, align 8
+; CHECK-NEXT:    [[EXT_A:%.*]] = bitcast i64* [[A]] to i8*
+; CHECK-NEXT:    store i64 0, i64* [[A]], align 8
+; CHECK-NEXT:    call void @clobber()
+; CHECK-NEXT:    call void @llvm.memcpy.p0i8.p0i8.i64(i8* [[EXT_A]], i8* [[SRC:%.*]], i64 8, i1 false)
+; CHECK-NEXT:    store i64* [[A]], i64** [[ESCAPE:%.*]], align 8
+; CHECK-NEXT:    call void @clobber()
+; CHECK-NEXT:    store i64 99, i64* [[A]], align 8
+; CHECK-NEXT:    call void @clobber()
+; CHECK-NEXT:    ret void
+;
+bb:
+  %a = alloca i64, align 8
+  %ext.a = bitcast i64* %a to i8*
+  store i64 0, i64* %a
+  call void @clobber()
+  call void @llvm.memcpy.p0i8.p0i8.i64(i8* %ext.a, i8* %src, i64 8, i1 false)
+  store i64* %a, i64** %escape, align 8
+  store i64* %a, i64** %escape, align 8
+  call void @clobber()
+  store i64 99, i64* %a
+  call void @clobber()
+  ret void
+}