2461cdb417
Once the default for SimplifyCFG flips, we can no longer pass nullptr instead of DomTree to SimplifyCFG, so we need to propagate it here. We don't strictly need to actually preserve DomTree in DwarfEHPrepare, but we might as well do it, since it's trivial.
67 lines
2.2 KiB
LLVM
67 lines
2.2 KiB
LLVM
; RUN: llc -simplifycfg-require-and-preserve-domtree=1 < %s | FileCheck %s
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;; Formerly crashed, see PR 1508
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target datalayout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f128:64:128"
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target triple = "powerpc64-unknown-linux-gnu"
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%struct.Range = type { i64, i64 }
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; CHECK: .cfi_startproc
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; CHECK: .cfi_personality 148, DW.ref.__gxx_personality_v0
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; CHECK: .cfi_lsda 20, .Lexception0
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; CHECK: .cfi_def_cfa_offset 176
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; CHECK: .cfi_offset r31, -8
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; CHECK: .cfi_offset lr, 16
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; CHECK: .cfi_def_cfa_register r31
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; CHECK: .cfi_offset r27, -40
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; CHECK: .cfi_offset r28, -32
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; CHECK: .cfi_offset r29, -24
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; CHECK: .cfi_offset r30, -16
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; CHECK: .cfi_endproc
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define void @Bork(i64 %range.0.0, i64 %range.0.1, i64 %size) personality i32 (...)* @__gxx_personality_v0 {
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entry:
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%effectiveRange = alloca %struct.Range, align 8 ; <%struct.Range*> [#uses=2]
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%tmp4 = call i8* @llvm.stacksave() ; <i8*> [#uses=1]
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%size1 = trunc i64 %size to i32 ; <i32> [#uses=1]
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%tmp17 = alloca i8*, i32 %size1 ; <i8**> [#uses=1]
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invoke void @Foo(i8** %tmp17)
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to label %bb30.preheader unwind label %unwind
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bb30.preheader: ; preds = %entry
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%tmp26 = getelementptr %struct.Range, %struct.Range* %effectiveRange, i64 0, i32 1 ; <i64*> [#uses=1]
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br label %bb30
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unwind: ; preds = %cond_true, %entry
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%exn = landingpad {i8*, i32}
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catch i8* null
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call void @llvm.stackrestore(i8* %tmp4)
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resume { i8*, i32 } %exn
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invcont23: ; preds = %cond_true
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%tmp27 = load i64, i64* %tmp26, align 8 ; <i64> [#uses=1]
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%tmp28 = sub i64 %range_addr.1.0, %tmp27 ; <i64> [#uses=1]
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br label %bb30
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bb30: ; preds = %invcont23, %bb30.preheader
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%range_addr.1.0 = phi i64 [ %tmp28, %invcont23 ], [ %range.0.1, %bb30.preheader ] ; <i64> [#uses=2]
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%tmp33 = icmp eq i64 %range_addr.1.0, 0 ; <i1> [#uses=1]
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br i1 %tmp33, label %cleanup, label %cond_true
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cond_true: ; preds = %bb30
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invoke void @Bar(i64 %range.0.0, %struct.Range* %effectiveRange)
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to label %invcont23 unwind label %unwind
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cleanup: ; preds = %bb30
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ret void
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}
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declare i8* @llvm.stacksave() nounwind
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declare void @Foo(i8**)
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declare void @Bar(i64, %struct.Range*)
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declare void @llvm.stackrestore(i8*) nounwind
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declare i32 @__gxx_personality_v0(...)
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