63 lines
1.8 KiB
LLVM
63 lines
1.8 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -basic-aa -dse -S | FileCheck %s
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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"
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declare void @f()
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declare i32 @__CxxFrameHandler3(...)
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; Make sure we do not eliminate `store i32 20, i32* %sv`. Even though it is a store
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; to a stack object, we can read it in the landing/catchpad.
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define void @test12(i32* %p) personality i32 (...)* @__CxxFrameHandler3 {
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; CHECK-LABEL: @test12(
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; CHECK-NEXT: block1:
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; CHECK-NEXT: [[SV:%.*]] = alloca i32
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; CHECK-NEXT: br label [[BLOCK2:%.*]]
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; CHECK: block2:
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; CHECK-NEXT: store i32 20, i32* [[SV]]
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; CHECK-NEXT: invoke void @f()
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; CHECK-NEXT: to label [[BLOCK3:%.*]] unwind label [[CATCH_DISPATCH:%.*]]
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; CHECK: block3:
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; CHECK-NEXT: br label [[EXIT:%.*]]
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; CHECK: catch.dispatch:
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; CHECK-NEXT: [[CS1:%.*]] = catchswitch within none [label %catch] unwind label [[CLEANUP:%.*]]
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; CHECK: catch:
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; CHECK-NEXT: [[C:%.*]] = catchpad within [[CS1]] []
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; CHECK-NEXT: [[LV:%.*]] = load i32, i32* [[SV]]
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; CHECK-NEXT: br label [[EXIT]]
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; CHECK: cleanup:
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; CHECK-NEXT: [[C1:%.*]] = cleanuppad within none []
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; CHECK-NEXT: br label [[EXIT]]
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; CHECK: exit:
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; CHECK-NEXT: ret void
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;
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block1:
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%sv = alloca i32
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br label %block2
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block2:
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store i32 20, i32* %sv
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invoke void @f()
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to label %block3 unwind label %catch.dispatch
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block3:
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store i32 30, i32* %sv
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br label %exit
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catch.dispatch:
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%cs1 = catchswitch within none [label %catch] unwind label %cleanup
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catch:
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%c = catchpad within %cs1 []
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%lv = load i32, i32* %sv
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br label %exit
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cleanup:
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%c1 = cleanuppad within none []
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br label %exit
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exit:
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store i32 40, i32* %sv
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ret void
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}
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