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https://github.com/c64scene-ar/llvm-6502.git
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9a941b2028
This should be sufficient to replace the initial (minor) function pass pipeline in Clang with the new pass manager. I'll probably add an (off by default) flag to do that just to ensure we can get extra testing. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227726 91177308-0d34-0410-b5e6-96231b3b80d8
75 lines
1.4 KiB
LLVM
75 lines
1.4 KiB
LLVM
; Test CFG simplify removal of branch instructions.
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;
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; RUN: opt < %s -simplifycfg -S | FileCheck %s
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; RUN: opt < %s -passes=simplify-cfg -S | FileCheck %s
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define void @test1() {
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br label %1
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ret void
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; CHECK-LABEL: @test1(
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; CHECK-NEXT: ret void
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}
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define void @test2() {
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ret void
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ret void
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; CHECK-LABEL: @test2(
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; CHECK-NEXT: ret void
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; CHECK-NEXT: }
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}
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define void @test3(i1 %T) {
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br i1 %T, label %1, label %1
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ret void
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; CHECK-LABEL: @test3(
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; CHECK-NEXT: ret void
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}
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; PR5795
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define void @test5(i32 %A) {
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switch i32 %A, label %return [
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i32 2, label %1
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i32 10, label %2
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]
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ret void
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ret void
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return: ; preds = %entry
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ret void
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; CHECK-LABEL: @test5(
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; CHECK-NEXT: ret void
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}
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; PR14893
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define i8 @test6f() {
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; CHECK-LABEL: @test6f
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; CHECK: alloca i8, align 1
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; CHECK-NEXT: call i8 @test6g
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; CHECK-NEXT: icmp eq i8 %tmp, 0
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; CHECK-NEXT: load i8* %r, align 1{{$}}
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bb0:
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%r = alloca i8, align 1
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%tmp = call i8 @test6g(i8* %r)
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%tmp1 = icmp eq i8 %tmp, 0
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br i1 %tmp1, label %bb2, label %bb1
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bb1:
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%tmp3 = load i8* %r, align 1, !range !2, !tbaa !1
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%tmp4 = icmp eq i8 %tmp3, 1
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br i1 %tmp4, label %bb2, label %bb3
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bb2:
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br label %bb3
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bb3:
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%tmp6 = phi i8 [ 0, %bb2 ], [ 1, %bb1 ]
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ret i8 %tmp6
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}
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declare i8 @test6g(i8*)
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!0 = !{!1, !1, i64 0}
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!1 = !{!"foo"}
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!2 = !{i8 0, i8 2}
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