forked from OSchip/llvm-project
[DSE] Add additional tests to cover review comments.
Adds additional tests following comments from D109844. Also removes unusued in.ptr arguments and places in the call tests that used loads instead of a getval call.
This commit is contained in:
Florian Hahn
parent
7be28d82b4
commit
963d3a22b3
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@ -43,7 +43,7 @@ declare void @escape_and_clobber(i32*)
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declare void @escape_writeonly(i32*) writeonly
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declare void @clobber()
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define i32 @test_not_captured_before_call_same_bb(i32** %in.ptr) {
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define i32 @test_not_captured_before_call_same_bb() {
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; CHECK-LABEL: @test_not_captured_before_call_same_bb(
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; CHECK-NEXT: [[A:%.*]] = alloca i32, align 4
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; CHECK-NEXT: store i32 55, i32* [[A]], align 4
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@ -60,7 +60,7 @@ define i32 @test_not_captured_before_call_same_bb(i32** %in.ptr) {
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ret i32 %r
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}
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define i32 @test_not_captured_before_call_same_bb_escape_unreachable_block(i32** %in.ptr) {
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define i32 @test_not_captured_before_call_same_bb_escape_unreachable_block() {
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; CHECK-LABEL: @test_not_captured_before_call_same_bb_escape_unreachable_block(
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; CHECK-NEXT: [[A:%.*]] = alloca i32, align 4
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; CHECK-NEXT: store i32 55, i32* [[A]], align 4
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@ -84,28 +84,26 @@ unreach:
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ret i32 0
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}
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define i32 @test_captured_and_clobbered_after_load_same_bb_2(i32** %in.ptr) {
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define i32 @test_captured_and_clobbered_after_load_same_bb_2() {
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; CHECK-LABEL: @test_captured_and_clobbered_after_load_same_bb_2(
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; CHECK-NEXT: [[A:%.*]] = alloca i32, align 4
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; CHECK-NEXT: store i32 55, i32* [[A]], align 4
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; CHECK-NEXT: [[IN_LV_1:%.*]] = load i32*, i32** [[IN_PTR:%.*]], align 2
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; CHECK-NEXT: [[IN_LV_2:%.*]] = load i32, i32* [[IN_LV_1]], align 2
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; CHECK-NEXT: [[R:%.*]] = call i32 @getval()
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; CHECK-NEXT: call void @escape_and_clobber(i32* [[A]])
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; CHECK-NEXT: store i32 99, i32* [[A]], align 4
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; CHECK-NEXT: call void @clobber()
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; CHECK-NEXT: ret i32 [[IN_LV_2]]
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; CHECK-NEXT: ret i32 [[R]]
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;
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%a = alloca i32, align 4
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store i32 55, i32* %a
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%in.lv.1 = load i32* , i32** %in.ptr, align 2
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%in.lv.2 = load i32 , i32* %in.lv.1, align 2
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%r = call i32 @getval()
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call void @escape_and_clobber(i32* %a)
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store i32 99, i32* %a, align 4
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call void @clobber()
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ret i32 %in.lv.2
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ret i32 %r
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}
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define i32 @test_captured_after_call_same_bb_2_clobbered_later(i32** %in.ptr) {
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define i32 @test_captured_after_call_same_bb_2_clobbered_later() {
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; CHECK-LABEL: @test_captured_after_call_same_bb_2_clobbered_later(
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; CHECK-NEXT: [[A:%.*]] = alloca i32, align 4
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; CHECK-NEXT: store i32 55, i32* [[A]], align 4
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@ -124,7 +122,7 @@ define i32 @test_captured_after_call_same_bb_2_clobbered_later(i32** %in.ptr) {
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ret i32 %r
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}
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define i32 @test_captured_sibling_path_to_call_other_blocks_1(i32** %in.ptr, i1 %c.1) {
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define i32 @test_captured_sibling_path_to_call_other_blocks_1(i1 %c.1) {
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; CHECK-LABEL: @test_captured_sibling_path_to_call_other_blocks_1(
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; CHECK-NEXT: [[A:%.*]] = alloca i32, align 4
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; CHECK-NEXT: store i32 55, i32* [[A]], align 4
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@ -160,7 +158,7 @@ exit:
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ret i32 %p
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}
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define i32 @test_captured_before_call_other_blocks_2(i32** %in.ptr, i1 %c.1) {
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define i32 @test_captured_before_call_other_blocks_2(i1 %c.1) {
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; CHECK-LABEL: @test_captured_before_call_other_blocks_2(
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; CHECK-NEXT: [[A:%.*]] = alloca i32, align 4
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; CHECK-NEXT: store i32 55, i32* [[A]], align 4
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@ -196,7 +194,7 @@ exit:
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ret i32 %p
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}
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define i32 @test_captured_before_call_other_blocks_4(i32** %in.ptr, i1 %c.1) {
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define i32 @test_captured_before_call_other_blocks_4(i1 %c.1) {
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; CHECK-LABEL: @test_captured_before_call_other_blocks_4(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[A:%.*]] = alloca i32, align 4
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@ -231,7 +229,7 @@ exit:
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ret i32 %p
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}
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define i32 @test_captured_before_call_other_blocks_5(i32** %in.ptr, i1 %c.1) {
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define i32 @test_captured_before_call_other_blocks_5(i1 %c.1) {
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; CHECK-LABEL: @test_captured_before_call_other_blocks_5(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[A:%.*]] = alloca i32, align 4
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@ -262,7 +260,7 @@ exit:
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ret i32 %r
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}
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define i32 @test_captured_before_call_other_blocks_6(i32** %in.ptr, i1 %c.1) {
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define i32 @test_captured_before_call_other_blocks_6(i1 %c.1) {
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; CHECK-LABEL: @test_captured_before_call_other_blocks_6(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[A:%.*]] = alloca i32, align 4
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@ -295,7 +293,7 @@ exit:
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ret i32 %r
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}
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define i32 @test_not_captured_before_call_other_blocks_1(i32** %in.ptr, i1 %c.1) {
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define i32 @test_not_captured_before_call_other_blocks_1(i1 %c.1) {
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; CHECK-LABEL: @test_not_captured_before_call_other_blocks_1(
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; CHECK-NEXT: [[A:%.*]] = alloca i32, align 4
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; CHECK-NEXT: store i32 55, i32* [[A]], align 4
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@ -327,7 +325,7 @@ exit:
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ret i32 %r
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}
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define i32 @test_not_captured_before_call_other_blocks_2(i32** %in.ptr, i1 %c.1) {
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define i32 @test_not_captured_before_call_other_blocks_2(i1 %c.1) {
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; CHECK-LABEL: @test_not_captured_before_call_other_blocks_2(
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; CHECK-NEXT: [[A:%.*]] = alloca i32, align 4
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; CHECK-NEXT: store i32 55, i32* [[A]], align 4
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@ -361,7 +359,7 @@ exit:
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ret i32 %r
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}
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define i32 @test_not_captured_before_call_other_blocks_3(i32** %in.ptr, i1 %c.1) {
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define i32 @test_not_captured_before_call_other_blocks_3(i1 %c.1) {
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; CHECK-LABEL: @test_not_captured_before_call_other_blocks_3(
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; CHECK-NEXT: [[A:%.*]] = alloca i32, align 4
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; CHECK-NEXT: store i32 55, i32* [[A]], align 4
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@ -393,7 +391,7 @@ exit:
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ret i32 %r
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}
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define i32 @test_not_captured_before_call_other_blocks_4(i32** %in.ptr, i1 %c.1) {
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define i32 @test_not_captured_before_call_other_blocks_4(i1 %c.1) {
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; CHECK-LABEL: @test_not_captured_before_call_other_blocks_4(
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; CHECK-NEXT: [[A:%.*]] = alloca i32, align 4
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; CHECK-NEXT: store i32 55, i32* [[A]], align 4
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@ -429,7 +427,7 @@ exit:
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ret i32 %p
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}
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define i32 @test_not_captured_before_call_other_blocks_5(i32** %in.ptr, i1 %c.1) {
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define i32 @test_not_captured_before_call_other_blocks_5(i1 %c.1) {
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; CHECK-LABEL: @test_not_captured_before_call_other_blocks_5(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[A:%.*]] = alloca i32, align 4
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@ -462,7 +460,7 @@ exit:
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ret i32 %p
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}
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define i32 @test_not_captured_before_call_other_blocks_6(i32** %in.ptr, i1 %c.1) {
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define i32 @test_not_captured_before_call_other_blocks_6(i1 %c.1) {
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; CHECK-LABEL: @test_not_captured_before_call_other_blocks_6(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[A:%.*]] = alloca i32, align 4
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@ -497,7 +495,7 @@ exit:
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ret i32 %p
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}
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define i32 @test_not_captured_before_call_other_blocks_7(i32** %in.ptr, i1 %c.1) {
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define i32 @test_not_captured_before_call_other_blocks_7(i1 %c.1) {
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; CHECK-LABEL: @test_not_captured_before_call_other_blocks_7(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[A:%.*]] = alloca i32, align 4
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@ -532,7 +530,7 @@ exit:
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ret i32 %p
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}
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define i32 @test_not_captured_before_call_same_bb_but_read(i32** %in.ptr) {
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define i32 @test_not_captured_before_call_same_bb_but_read() {
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; CHECK-LABEL: @test_not_captured_before_call_same_bb_but_read(
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; CHECK-NEXT: [[A:%.*]] = alloca i32, align 4
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; CHECK-NEXT: store i32 55, i32* [[A]], align 4
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@ -553,64 +551,60 @@ define i32 @test_not_captured_before_call_same_bb_but_read(i32** %in.ptr) {
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ret i32 %res
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}
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define i32 @test_captured_after_loop(i32** %in.ptr, i1 %c.1) {
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define i32 @test_captured_after_loop(i1 %c.1) {
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; CHECK-LABEL: @test_captured_after_loop(
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; CHECK-NEXT: [[A:%.*]] = alloca i32, align 4
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; CHECK-NEXT: store i32 55, i32* [[A]], align 4
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; CHECK-NEXT: br label [[LOOP:%.*]]
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; CHECK: loop:
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; CHECK-NEXT: [[IN_LV_1:%.*]] = load i32*, i32** [[IN_PTR:%.*]], align 2
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; CHECK-NEXT: [[IN_LV_2:%.*]] = load i32, i32* [[IN_LV_1]], align 2
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; CHECK-NEXT: [[R:%.*]] = call i32 @getval()
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; CHECK-NEXT: store i32 99, i32* [[A]], align 4
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; CHECK-NEXT: br i1 [[C_1:%.*]], label [[LOOP]], label [[EXIT:%.*]]
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; CHECK: exit:
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; CHECK-NEXT: call void @escape_and_clobber(i32* [[A]])
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; CHECK-NEXT: ret i32 [[IN_LV_2]]
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; CHECK-NEXT: ret i32 [[R]]
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;
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%a = alloca i32, align 4
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store i32 55, i32* %a
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br label %loop
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loop:
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%in.lv.1 = load i32* , i32** %in.ptr, align 2
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%in.lv.2 = load i32 , i32* %in.lv.1, align 2
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%r = call i32 @getval()
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store i32 99, i32* %a, align 4
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br i1 %c.1, label %loop, label %exit
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exit:
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call void @escape_and_clobber(i32* %a)
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ret i32 %in.lv.2
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ret i32 %r
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}
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define i32 @test_captured_in_loop(i32** %in.ptr, i1 %c.1) {
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define i32 @test_captured_in_loop(i1 %c.1) {
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; CHECK-LABEL: @test_captured_in_loop(
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; CHECK-NEXT: [[A:%.*]] = alloca i32, align 4
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; CHECK-NEXT: store i32 55, i32* [[A]], align 4
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; CHECK-NEXT: br label [[LOOP:%.*]]
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; CHECK: loop:
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; CHECK-NEXT: [[IN_LV_1:%.*]] = load i32*, i32** [[IN_PTR:%.*]], align 2
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; CHECK-NEXT: [[IN_LV_2:%.*]] = load i32, i32* [[IN_LV_1]], align 2
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; CHECK-NEXT: [[R:%.*]] = call i32 @getval()
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; CHECK-NEXT: call void @escape_writeonly(i32* [[A]])
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; CHECK-NEXT: store i32 99, i32* [[A]], align 4
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; CHECK-NEXT: br i1 [[C_1:%.*]], label [[LOOP]], label [[EXIT:%.*]]
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; CHECK: exit:
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; CHECK-NEXT: call void @escape_and_clobber(i32* [[A]])
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; CHECK-NEXT: ret i32 [[IN_LV_2]]
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; CHECK-NEXT: ret i32 [[R]]
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;
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%a = alloca i32, align 4
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store i32 55, i32* %a
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br label %loop
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loop:
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%in.lv.1 = load i32* , i32** %in.ptr, align 2
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%in.lv.2 = load i32 , i32* %in.lv.1, align 2
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%r = call i32 @getval()
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call void @escape_writeonly(i32* %a)
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store i32 99, i32* %a, align 4
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br i1 %c.1, label %loop, label %exit
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exit:
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call void @escape_and_clobber(i32* %a)
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ret i32 %in.lv.2
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ret i32 %r
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}
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declare void @llvm.memcpy.p0i8.p0i8.i64(i8*, i8*, i64, i1)
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@ -641,3 +635,91 @@ bb:
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call void @clobber()
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ret void
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}
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define void @test_invoke_captures() personality i8* undef {
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; CHECK-LABEL: @test_invoke_captures(
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; CHECK-NEXT: bb:
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; CHECK-NEXT: [[A:%.*]] = alloca i32, align 4
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; CHECK-NEXT: store i32 99, i32* [[A]], align 4
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; CHECK-NEXT: invoke void @clobber()
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; CHECK-NEXT: to label [[BB2:%.*]] unwind label [[BB5:%.*]]
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; CHECK: bb2:
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; CHECK-NEXT: store i32 0, i32* [[A]], align 8
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; CHECK-NEXT: invoke void @escape(i32* [[A]])
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; CHECK-NEXT: to label [[BB9:%.*]] unwind label [[BB10:%.*]]
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; CHECK: bb4:
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; CHECK-NEXT: ret void
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; CHECK: bb5:
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; CHECK-NEXT: [[LP_1:%.*]] = landingpad { i8*, i32 }
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; CHECK-NEXT: cleanup
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; CHECK-NEXT: ret void
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; CHECK: bb9:
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; CHECK-NEXT: ret void
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; CHECK: bb10:
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; CHECK-NEXT: [[LP_2:%.*]] = landingpad { i8*, i32 }
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; CHECK-NEXT: cleanup
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; CHECK-NEXT: unreachable
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;
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bb:
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%a = alloca i32
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store i32 99, i32* %a
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invoke void @clobber()
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to label %bb2 unwind label %bb5
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bb2:
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store i32 0, i32* %a, align 8
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invoke void @escape(i32* %a)
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to label %bb9 unwind label %bb10
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bb4:
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ret void
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bb5:
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%lp.1 = landingpad { i8*, i32 }
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cleanup
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ret void
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bb9:
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ret void
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bb10:
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%lp.2 = landingpad { i8*, i32 }
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cleanup
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unreachable
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}
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declare noalias i32* @alloc() nounwind
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declare i32 @getval_nounwind() nounwind
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define i32 @test_not_captured_before_load_same_bb_noalias_call() {
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; CHECK-LABEL: @test_not_captured_before_load_same_bb_noalias_call(
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; CHECK-NEXT: [[A:%.*]] = call i32* @alloc()
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; CHECK-NEXT: store i32 55, i32* [[A]], align 4
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; CHECK-NEXT: [[R:%.*]] = call i32 @getval_nounwind()
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; CHECK-NEXT: store i32 99, i32* [[A]], align 4
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; CHECK-NEXT: call void @escape_and_clobber(i32* [[A]])
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; CHECK-NEXT: ret i32 [[R]]
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;
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%a = call i32* @alloc()
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store i32 55, i32* %a
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%r = call i32 @getval_nounwind()
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store i32 99, i32* %a, align 4
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call void @escape_and_clobber(i32* %a)
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ret i32 %r
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}
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define i32 @test_not_captured_before_load_same_bb_noalias_arg(i32* noalias %a) {
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; CHECK-LABEL: @test_not_captured_before_load_same_bb_noalias_arg(
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; CHECK-NEXT: store i32 55, i32* [[A:%.*]], align 4
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; CHECK-NEXT: [[R:%.*]] = call i32 @getval_nounwind()
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; CHECK-NEXT: store i32 99, i32* [[A]], align 4
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; CHECK-NEXT: call void @escape_and_clobber(i32* [[A]])
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; CHECK-NEXT: ret i32 [[R]]
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;
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store i32 55, i32* %a
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%r = call i32 @getval_nounwind()
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store i32 99, i32* %a, align 4
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call void @escape_and_clobber(i32* %a)
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ret i32 %r
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}
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@ -235,6 +235,42 @@ exit:
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ret i32 %p
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}
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define i32 @test_only_captured_sibling_path_with_ret_to_load_other_blocks(i32** %in.ptr, i1 %c.1) {
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; CHECK-LABEL: @test_only_captured_sibling_path_with_ret_to_load_other_blocks(
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; CHECK-NEXT: [[A:%.*]] = alloca i32, align 4
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; CHECK-NEXT: store i32 55, i32* [[A]], align 4
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; CHECK-NEXT: br i1 [[C_1:%.*]], label [[THEN:%.*]], label [[ELSE:%.*]]
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; CHECK: then:
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; CHECK-NEXT: call void @escape_writeonly(i32* [[A]])
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; CHECK-NEXT: ret i32 0
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; CHECK: else:
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; CHECK-NEXT: [[IN_LV_1:%.*]] = load i32*, i32** [[IN_PTR:%.*]], align 2
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; CHECK-NEXT: [[IN_LV_2:%.*]] = load i32, i32* [[IN_LV_1]], align 2
|
||||
; CHECK-NEXT: br label [[EXIT:%.*]]
|
||||
; CHECK: exit:
|
||||
; 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
|
||||
br i1 %c.1, label %then, label %else
|
||||
|
||||
then:
|
||||
call void @escape_writeonly(i32* %a)
|
||||
ret i32 0
|
||||
|
||||
else:
|
||||
%in.lv.1 = load i32* , i32** %in.ptr, align 2
|
||||
%in.lv.2 = load i32 , i32* %in.lv.1, align 2
|
||||
br label %exit
|
||||
|
||||
exit:
|
||||
store i32 99, i32* %a, align 4
|
||||
call void @clobber()
|
||||
ret i32 %in.lv.2
|
||||
}
|
||||
|
||||
define i32 @test_captured_before_load_other_blocks_2(i32** %in.ptr, i1 %c.1) {
|
||||
; CHECK-LABEL: @test_captured_before_load_other_blocks_2(
|
||||
; CHECK-NEXT: [[A:%.*]] = alloca i32, align 4
|
||||
|
|
@ -652,6 +688,31 @@ define i32 @test_not_captured_before_load_same_bb_but_read(i32** %in.ptr) {
|
|||
ret i32 %res
|
||||
}
|
||||
|
||||
define i32 @test_not_captured_before_load_may_alias_same_bb_but_read(i32** %in.ptr, i32* %b, i1 %c) {
|
||||
; CHECK-LABEL: @test_not_captured_before_load_may_alias_same_bb_but_read(
|
||||
; 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: [[PTR:%.*]] = select i1 [[C:%.*]], i32* [[A]], i32* [[B:%.*]]
|
||||
; CHECK-NEXT: [[LV:%.*]] = load i32, i32* [[PTR]], 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 [[IN_LV_2]], [[LV]]
|
||||
; CHECK-NEXT: ret i32 [[RES]]
|
||||
;
|
||||
%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
|
||||
%ptr = select i1 %c, i32* %a, i32* %b
|
||||
%lv = load i32, i32* %ptr
|
||||
store i32 99, i32* %a, align 4
|
||||
call void @escape_and_clobber(i32* %a)
|
||||
%res = add i32 %in.lv.2, %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
|
||||
|
|
@ -797,3 +858,215 @@ exit:
|
|||
call void @escape_and_clobber(i32* %gep.a.0)
|
||||
ret void
|
||||
}
|
||||
|
||||
declare void @llvm.lifetime.start.p0i8(i64 immarg, i8* nocapture) #0
|
||||
declare void @llvm.memset.p0i8.i64(i8* nocapture writeonly, i8, i64, i1 immarg) #1
|
||||
|
||||
declare void @use.i64(i64)
|
||||
|
||||
define i64 @test_a_not_captured_at_all(i64** %ptr, i64** %ptr.2, i1 %c) {
|
||||
; CHECK-LABEL: @test_a_not_captured_at_all(
|
||||
; CHECK-NEXT: entry:
|
||||
; CHECK-NEXT: [[A:%.*]] = alloca i64, align 8
|
||||
; CHECK-NEXT: [[B:%.*]] = alloca i64, align 8
|
||||
; CHECK-NEXT: store i64* [[B]], i64** [[PTR:%.*]], align 8
|
||||
; CHECK-NEXT: [[LV_1:%.*]] = load i64*, i64** [[PTR_2:%.*]], align 8
|
||||
; CHECK-NEXT: br i1 [[C:%.*]], label [[EXIT:%.*]], label [[THEN:%.*]]
|
||||
; CHECK: then:
|
||||
; CHECK-NEXT: [[LV_2:%.*]] = load i64, i64* [[LV_1]], align 4
|
||||
; CHECK-NEXT: call void @use.i64(i64 [[LV_2]])
|
||||
; CHECK-NEXT: br label [[EXIT]]
|
||||
; CHECK: exit:
|
||||
; CHECK-NEXT: [[A_CAST:%.*]] = bitcast i64* [[A]] to i8*
|
||||
; CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* [[A_CAST]])
|
||||
; CHECK-NEXT: call void @clobber()
|
||||
; CHECK-NEXT: call void @llvm.memset.p0i8.i64(i8* [[A_CAST]], i8 0, i64 8, i1 false)
|
||||
; CHECK-NEXT: [[L:%.*]] = load i64, i64* [[A]], align 4
|
||||
; CHECK-NEXT: ret i64 [[L]]
|
||||
;
|
||||
entry:
|
||||
%a = alloca i64, align 8
|
||||
%b = alloca i64, align 8
|
||||
store i64* %b, i64** %ptr, align 8
|
||||
%lv.1 = load i64*, i64** %ptr.2, align 8
|
||||
br i1 %c, label %exit, label %then
|
||||
|
||||
then:
|
||||
%lv.2 = load i64, i64* %lv.1
|
||||
call void @use.i64(i64 %lv.2)
|
||||
br label %exit
|
||||
|
||||
exit:
|
||||
%a.cast = bitcast i64* %a to i8*
|
||||
call void @llvm.lifetime.start.p0i8(i64 8, i8* %a.cast)
|
||||
store i64 99, i64* %a
|
||||
call void @clobber()
|
||||
call void @llvm.memset.p0i8.i64(i8* %a.cast, i8 0, i64 8, i1 false)
|
||||
%l = load i64, i64* %a
|
||||
ret i64 %l
|
||||
}
|
||||
|
||||
define i32 @test_not_captured_both_paths_1(i32** %in.ptr, i1 %c.1) {
|
||||
; CHECK-LABEL: @test_not_captured_both_paths_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: store i32 99, i32* [[A]], align 4
|
||||
; CHECK-NEXT: call void @escape_writeonly(i32* [[A]])
|
||||
; CHECK-NEXT: br label [[EXIT:%.*]]
|
||||
; CHECK: else:
|
||||
; 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: call void @escape_writeonly(i32* [[A]])
|
||||
; CHECK-NEXT: br label [[EXIT]]
|
||||
; CHECK: exit:
|
||||
; CHECK-NEXT: [[P:%.*]] = phi i32 [ 0, [[THEN]] ], [ [[IN_LV_2]], [[ELSE]] ]
|
||||
; 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:
|
||||
store i32 99, i32* %a, align 4
|
||||
call void @escape_writeonly(i32* %a)
|
||||
br label %exit
|
||||
|
||||
else:
|
||||
%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
|
||||
call void @escape_writeonly(i32* %a)
|
||||
br label %exit
|
||||
|
||||
exit:
|
||||
%p = phi i32 [ 0, %then ], [ %in.lv.2, %else ]
|
||||
call void @clobber()
|
||||
ret i32 %p
|
||||
}
|
||||
|
||||
define i32 @test_not_captured_both_paths_2(i32** %in.ptr, i1 %c.1) {
|
||||
; CHECK-LABEL: @test_not_captured_both_paths_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: [[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: call void @escape_writeonly(i32* [[A]])
|
||||
; CHECK-NEXT: br label [[EXIT:%.*]]
|
||||
; CHECK: else:
|
||||
; CHECK-NEXT: store i32 99, i32* [[A]], align 4
|
||||
; CHECK-NEXT: call void @escape_writeonly(i32* [[A]])
|
||||
; CHECK-NEXT: br label [[EXIT]]
|
||||
; CHECK: exit:
|
||||
; CHECK-NEXT: [[P:%.*]] = phi i32 [ [[IN_LV_2]], [[THEN]] ], [ 0, [[ELSE]] ]
|
||||
; 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:
|
||||
%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
|
||||
call void @escape_writeonly(i32* %a)
|
||||
br label %exit
|
||||
|
||||
else:
|
||||
store i32 99, i32* %a, align 4
|
||||
call void @escape_writeonly(i32* %a)
|
||||
br label %exit
|
||||
|
||||
exit:
|
||||
%p = phi i32 [ %in.lv.2, %then ], [ 0, %else ]
|
||||
call void @clobber()
|
||||
ret i32 %p
|
||||
}
|
||||
|
||||
define i32 @test_captured_before_store_both_paths_2(i32** %in.ptr, i1 %c.1) {
|
||||
; CHECK-LABEL: @test_captured_before_store_both_paths_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: call void @escape_writeonly(i32* [[A]])
|
||||
; 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 label [[EXIT:%.*]]
|
||||
; CHECK: else:
|
||||
; CHECK-NEXT: call void @escape_writeonly(i32* [[A]])
|
||||
; CHECK-NEXT: store i32 99, i32* [[A]], align 4
|
||||
; CHECK-NEXT: br label [[EXIT]]
|
||||
; CHECK: exit:
|
||||
; CHECK-NEXT: [[P:%.*]] = phi i32 [ [[IN_LV_2]], [[THEN]] ], [ 0, [[ELSE]] ]
|
||||
; 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)
|
||||
%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 label %exit
|
||||
|
||||
else:
|
||||
call void @escape_writeonly(i32* %a)
|
||||
store i32 99, i32* %a, align 4
|
||||
br label %exit
|
||||
|
||||
exit:
|
||||
%p = phi i32 [ %in.lv.2, %then ], [ 0, %else ]
|
||||
call void @clobber()
|
||||
ret i32 %p
|
||||
}
|
||||
|
||||
|
||||
declare noalias i32* @alloc() nounwind
|
||||
|
||||
define i32 @test_not_captured_before_load_same_bb_noalias_call(i32** %in.ptr) {
|
||||
; CHECK-LABEL: @test_not_captured_before_load_same_bb_noalias_call(
|
||||
; CHECK-NEXT: [[A:%.*]] = call i32* @alloc()
|
||||
; 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: store i32 99, i32* [[A]], align 4
|
||||
; CHECK-NEXT: call void @escape_and_clobber(i32* [[A]])
|
||||
; CHECK-NEXT: ret i32 [[IN_LV_2]]
|
||||
;
|
||||
%a = call i32* @alloc()
|
||||
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
|
||||
store i32 99, i32* %a, align 4
|
||||
call void @escape_and_clobber(i32* %a)
|
||||
ret i32 %in.lv.2
|
||||
}
|
||||
|
||||
define i32 @test_not_captured_before_load_same_bb_noalias_arg(i32** %in.ptr, i32* noalias %a) {
|
||||
; CHECK-LABEL: @test_not_captured_before_load_same_bb_noalias_arg(
|
||||
; 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: store i32 99, i32* [[A]], align 4
|
||||
; CHECK-NEXT: call void @escape_and_clobber(i32* [[A]])
|
||||
; CHECK-NEXT: ret i32 [[IN_LV_2]]
|
||||
;
|
||||
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
|
||||
store i32 99, i32* %a, align 4
|
||||
call void @escape_and_clobber(i32* %a)
|
||||
ret i32 %in.lv.2
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue