9d172c8e9c
This switches to using DSE + MemorySSA by default again, after fixing the issues reported after the first commit. Notable fixes fc8200633122, a0017c2bc258. This reverts commit 3a59628f3cc26eb085acfc9cbdc97243ef71a6c5.
63 lines
1.8 KiB
LLVM
63 lines
1.8 KiB
LLVM
; 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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