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https://github.com/c64scene-ar/llvm-6502.git
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857550322c
We were assuming that each back-edge in a region represented a unique loop, which is not always the case. We need to use LoopInfo to correctly determine which back-edges are loops. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@223199 91177308-0d34-0410-b5e6-96231b3b80d8
42 lines
1.1 KiB
LLVM
42 lines
1.1 KiB
LLVM
; RUN: opt -S -structurizecfg %s -o - | FileCheck %s
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; CHECK-NOT: br i1 true
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define void @blam(i32 addrspace(1)* nocapture %arg, float %arg1, float %arg2) {
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; CHECK: bb:
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bb:
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br label %bb3
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; CHECK: bb3:
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bb3: ; preds = %bb7, %bb
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%tmp = phi i64 [ 0, %bb ], [ %tmp8, %bb7 ]
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%tmp4 = fcmp ult float %arg1, 3.500000e+00
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; CHECK: br i1 %tmp4, label %bb7, label %Flow
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br i1 %tmp4, label %bb7, label %bb5
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; CHECK: Flow:
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; CHECK: br i1 %2, label %Flow1, label %bb3
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; CHECK: Flow1:
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; CHECK: br i1 %3, label %bb5, label %bb10
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; CHECK: bb5:
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bb5: ; preds = %bb3
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%tmp6 = fcmp olt float 0.000000e+00, %arg2
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; CHECK: br label %bb10
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br i1 %tmp6, label %bb10, label %bb7
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; CHECK: bb7
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bb7: ; preds = %bb5, %bb3
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%tmp8 = add nuw nsw i64 %tmp, 1
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%tmp9 = icmp slt i64 %tmp8, 5
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; CHECK: br label %Flow
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br i1 %tmp9, label %bb3, label %bb10
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; CHECK: bb10
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bb10: ; preds = %bb7, %bb5
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%tmp11 = phi i32 [ 15, %bb5 ], [ 255, %bb7 ]
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store i32 %tmp11, i32 addrspace(1)* %arg, align 4
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ret void
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}
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