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| author | Nikita Popov <npopov@redhat.com> | 2022-05-30 15:33:23 +0200 |
|---|---|---|
| committer | Tom Stellard <tstellar@redhat.com> | 2022-06-03 06:27:20 -0700 |
| commit | 885724c60cdc4b3fb221830d43e2ecd79ace9ce1 (patch) | |
| tree | bdf7613462ce789e04ef01a7946af8a2c103aa6c | |
| parent | 2f0a69c32a4c48473c187179a594ac035b244e74 (diff) | |
| download | llvm-885724c60cdc4b3fb221830d43e2ecd79ace9ce1.tar.gz | |
[SimplifyCFG] Add test for invoke of nounwind non-willreturn function (NFC)
Test both the case with and without willreturn attribute.
(cherry picked from commit 1f1de06165bb39f66049cdc942151fc6ed193123)
| -rw-r--r-- | llvm/test/Transforms/SimplifyCFG/invoke.ll | 43 |
1 files changed, 32 insertions, 11 deletions
diff --git a/llvm/test/Transforms/SimplifyCFG/invoke.ll b/llvm/test/Transforms/SimplifyCFG/invoke.ll index 48f3d90520ba..db10fa390c1d 100644 --- a/llvm/test/Transforms/SimplifyCFG/invoke.ll +++ b/llvm/test/Transforms/SimplifyCFG/invoke.ll @@ -4,8 +4,9 @@ target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f3 declare i32 @__gxx_personality_v0(...) declare void @__cxa_call_unexpected(i8*) -declare void @purefn() nounwind readnone -declare i32 @read_only() nounwind readonly +declare void @purefn() nounwind readnone willreturn +declare i32 @readonly() nounwind readonly +declare i32 @readonly_willreturn() nounwind readonly willreturn declare i32 @nounwind_fn() nounwind declare i32 @fn() @@ -61,7 +62,7 @@ define i8* @f2_no_null_opt() nounwind uwtable ssp #0 personality i8* bitcast (i3 ; CHECK-NEXT: [[TMP0:%.*]] = landingpad { i8*, i32 } ; CHECK-NEXT: filter [0 x i8*] zeroinitializer ; CHECK-NEXT: [[TMP1:%.*]] = extractvalue { i8*, i32 } [[TMP0]], 0 -; CHECK-NEXT: tail call void @__cxa_call_unexpected(i8* [[TMP1]]) #[[ATTR5:[0-9]+]] +; CHECK-NEXT: tail call void @__cxa_call_unexpected(i8* [[TMP1]]) #[[ATTR6:[0-9]+]] ; CHECK-NEXT: unreachable ; entry: @@ -79,13 +80,13 @@ lpad: unreachable } -define i32 @f3() nounwind uwtable ssp personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) { -; CHECK-LABEL: @f3( +define i32 @invoke_readonly_may_not_return() nounwind personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) { +; CHECK-LABEL: @invoke_readonly_may_not_return( ; CHECK-NEXT: entry: ; CHECK-NEXT: ret i32 3 ; entry: - %call = invoke i32 @read_only() + %call = invoke i32 @readonly() to label %invoke.cont unwind label %lpad invoke.cont: @@ -99,14 +100,34 @@ lpad: unreachable } -define i32 @f4() nounwind uwtable ssp personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) { -; CHECK-LABEL: @f4( +define i32 @invoke_readonly_willreturn() nounwind personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) { +; CHECK-LABEL: @invoke_readonly_willreturn( ; CHECK-NEXT: entry: -; CHECK-NEXT: [[CALL:%.*]] = call i32 @read_only() +; CHECK-NEXT: ret i32 3 +; +entry: + %call = invoke i32 @readonly_willreturn() + to label %invoke.cont unwind label %lpad + +invoke.cont: + ret i32 3 + +lpad: + %0 = landingpad { i8*, i32 } + filter [0 x i8*] zeroinitializer + %1 = extractvalue { i8*, i32 } %0, 0 + tail call void @__cxa_call_unexpected(i8* %1) noreturn nounwind + unreachable +} + +define i32 @invoke_readonly_willreturn_with_used_retval() nounwind personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) { +; CHECK-LABEL: @invoke_readonly_willreturn_with_used_retval( +; CHECK-NEXT: entry: +; CHECK-NEXT: [[CALL:%.*]] = call i32 @readonly_willreturn() ; CHECK-NEXT: ret i32 [[CALL]] ; entry: - %call = invoke i32 @read_only() + %call = invoke i32 @readonly_willreturn() to label %invoke.cont unwind label %lpad invoke.cont: @@ -136,7 +157,7 @@ define i32 @f5(i1 %cond, i8* %a, i8* %b) personality i8* bitcast (i32 (...)* @__ ; CHECK: lpad: ; CHECK-NEXT: [[TMP0:%.*]] = landingpad { i8*, i32 } ; CHECK-NEXT: filter [0 x i8*] zeroinitializer -; CHECK-NEXT: tail call void @__cxa_call_unexpected(i8* [[A:%.*]]) #[[ATTR5]] +; CHECK-NEXT: tail call void @__cxa_call_unexpected(i8* [[A:%.*]]) #[[ATTR6]] ; CHECK-NEXT: unreachable ; entry: |