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TheRock/compiler/amd-llvm/llvm/test/Transforms/SimplifyCFG/duplicate-landingpad.ll
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derek.holloway 7502bf64a4
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

150 lines
3.9 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -passes=simplifycfg -simplifycfg-require-and-preserve-domtree=1 -S | FileCheck %s
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
declare i32 @__gxx_personality_v0(...)
declare void @fn()
define void @test1() personality ptr @__gxx_personality_v0 {
; CHECK-LABEL: @test1(
; CHECK-NEXT: entry:
; CHECK-NEXT: invoke void @fn()
; CHECK-NEXT: to label [[INVOKE2:%.*]] unwind label [[LPAD2:%.*]]
; CHECK: invoke2:
; CHECK-NEXT: invoke void @fn()
; CHECK-NEXT: to label [[COMMON_RET:%.*]] unwind label [[LPAD2]]
; CHECK: common.ret:
; CHECK-NEXT: ret void
; CHECK: lpad2:
; CHECK-NEXT: [[EXN2:%.*]] = landingpad { ptr, i32 }
; CHECK-NEXT: cleanup
; CHECK-NEXT: call void @fn()
; CHECK-NEXT: br label [[COMMON_RET]]
;
entry:
invoke void @fn()
to label %invoke2 unwind label %lpad1
invoke2:
invoke void @fn()
to label %invoke.cont unwind label %lpad2
invoke.cont:
ret void
lpad1:
%exn = landingpad {ptr, i32}
cleanup
br label %shared_resume
lpad2:
%exn2 = landingpad {ptr, i32}
cleanup
br label %shared_resume
shared_resume:
call void @fn()
ret void
}
; Don't trigger if blocks aren't the same/empty
define void @neg1() personality ptr @__gxx_personality_v0 {
; CHECK-LABEL: @neg1(
; CHECK-NEXT: entry:
; CHECK-NEXT: invoke void @fn()
; CHECK-NEXT: to label [[INVOKE2:%.*]] unwind label [[LPAD1:%.*]]
; CHECK: invoke2:
; CHECK-NEXT: invoke void @fn()
; CHECK-NEXT: to label [[COMMON_RET:%.*]] unwind label [[LPAD2:%.*]]
; CHECK: common.ret:
; CHECK-NEXT: ret void
; CHECK: lpad1:
; CHECK-NEXT: [[EXN:%.*]] = landingpad { ptr, i32 }
; CHECK-NEXT: filter [0 x ptr] zeroinitializer
; CHECK-NEXT: call void @fn()
; CHECK-NEXT: br label [[SHARED_RESUME:%.*]]
; CHECK: lpad2:
; CHECK-NEXT: [[EXN2:%.*]] = landingpad { ptr, i32 }
; CHECK-NEXT: cleanup
; CHECK-NEXT: br label [[SHARED_RESUME]]
; CHECK: shared_resume:
; CHECK-NEXT: call void @fn()
; CHECK-NEXT: br label [[COMMON_RET]]
;
entry:
invoke void @fn()
to label %invoke2 unwind label %lpad1
invoke2:
invoke void @fn()
to label %invoke.cont unwind label %lpad2
invoke.cont:
ret void
lpad1:
%exn = landingpad {ptr, i32}
filter [0 x ptr] zeroinitializer
call void @fn()
br label %shared_resume
lpad2:
%exn2 = landingpad {ptr, i32}
cleanup
br label %shared_resume
shared_resume:
call void @fn()
ret void
}
; Should not trigger when the landing pads are not the exact same
define void @neg2() personality ptr @__gxx_personality_v0 {
; CHECK-LABEL: @neg2(
; CHECK-NEXT: entry:
; CHECK-NEXT: invoke void @fn()
; CHECK-NEXT: to label [[INVOKE2:%.*]] unwind label [[LPAD1:%.*]]
; CHECK: invoke2:
; CHECK-NEXT: invoke void @fn()
; CHECK-NEXT: to label [[COMMON_RET:%.*]] unwind label [[LPAD2:%.*]]
; CHECK: common.ret:
; CHECK-NEXT: ret void
; CHECK: lpad1:
; CHECK-NEXT: [[EXN:%.*]] = landingpad { ptr, i32 }
; CHECK-NEXT: filter [0 x ptr] zeroinitializer
; CHECK-NEXT: br label [[SHARED_RESUME:%.*]]
; CHECK: lpad2:
; CHECK-NEXT: [[EXN2:%.*]] = landingpad { ptr, i32 }
; CHECK-NEXT: cleanup
; CHECK-NEXT: br label [[SHARED_RESUME]]
; CHECK: shared_resume:
; CHECK-NEXT: call void @fn()
; CHECK-NEXT: br label [[COMMON_RET]]
;
entry:
invoke void @fn()
to label %invoke2 unwind label %lpad1
invoke2:
invoke void @fn()
to label %invoke.cont unwind label %lpad2
invoke.cont:
ret void
lpad1:
%exn = landingpad {ptr, i32}
filter [0 x ptr] zeroinitializer
br label %shared_resume
lpad2:
%exn2 = landingpad {ptr, i32}
cleanup
br label %shared_resume
shared_resume:
call void @fn()
ret void
}