73 lines
1.9 KiB
LLVM
73 lines
1.9 KiB
LLVM
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; RUN: llc -march=hexagon -O2 -simplifycfg-require-and-preserve-domtree=1 < %s | FileCheck %s
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; The purpose of this test is to make sure that the packetizer is ignoring
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; CFI instructions while forming packet for allocframe. Refer to 7d7d99622
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; which replaced PROLOG_LABEL with CFI_INSTRUCTION.
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@g0 = external constant i8*
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; We used to emit:
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; {
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; allocframe(#0)
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; }
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; {
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; r0 = #4
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; But we can put more instructions in the first packet.
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; CHECK: {
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; CHECK-NEXT: call f1
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; CHECK-NEXT: r0 = #4
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; CHECK-NEXT: allocframe(#0)
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; CHECK-NEXT: }
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define i32 @f0() personality i8* bitcast (i32 (...)* @f3 to i8*) {
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b0:
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%v0 = tail call i8* @f1(i32 4) #1
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%v1 = bitcast i8* %v0 to i32*
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store i32 20, i32* %v1, align 4, !tbaa !0
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invoke void @f2(i8* %v0, i8* bitcast (i8** @g0 to i8*), i8* null) #2
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to label %b4 unwind label %b1
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b1: ; preds = %b0
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%v2 = landingpad { i8*, i32 }
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catch i8* bitcast (i8** @g0 to i8*)
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%v3 = extractvalue { i8*, i32 } %v2, 1
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%v4 = tail call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @g0 to i8*)) #1
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%v5 = icmp eq i32 %v3, %v4
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br i1 %v5, label %b2, label %b3
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b2: ; preds = %b1
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%v6 = extractvalue { i8*, i32 } %v2, 0
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%v7 = tail call i8* @f4(i8* %v6) #1
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tail call void @f5() #1
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ret i32 1
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b3: ; preds = %b1
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resume { i8*, i32 } %v2
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b4: ; preds = %b0
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unreachable
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}
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declare i8* @f1(i32)
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declare void @f2(i8*, i8*, i8*)
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declare i32 @f3(...)
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; Function Attrs: nounwind readnone
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declare i32 @llvm.eh.typeid.for(i8*) #0
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declare i8* @f4(i8*)
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declare void @f5()
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attributes #0 = { nounwind readnone }
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attributes #1 = { nounwind }
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attributes #2 = { noreturn }
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!0 = !{!1, !1, i64 0}
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!1 = !{!"int", !2}
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!2 = !{!"omnipotent char", !3}
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!3 = !{!"Simple C/C++ TBAA"}
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