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67a85ada0d
This patch improves a temporary fix in r255530 so that we can normalize successor list without trigger assertion failures in tail duplication pass. llvm-svn: 255638
55 lines
1.1 KiB
LLVM
55 lines
1.1 KiB
LLVM
; RUN: llc -mtriple=arm-eabi -print-machineinstrs=tailduplication -tail-dup-size=100 \
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; RUN: -enable-tail-merge=false -disable-cgp %s -o /dev/null 2>&1 \
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; RUN: | FileCheck %s
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; CHECK: Machine code for function test0:
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; CHECK: Successors according to CFG: BB#1({{[0-9a-fx/= ]+}}3.12%) BB#2({{[0-9a-fx/= ]+}}96.88%)
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define void @test0(i32 %a, i32 %b, i32* %c, i32* %d) {
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entry:
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store i32 3, i32* %d
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br label %B1
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B2:
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store i32 2, i32* %c
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br label %B4
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B3:
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store i32 2, i32* %c
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br label %B4
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B1:
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store i32 1, i32* %d
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%test0 = icmp slt i32 %a, %b
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br i1 %test0, label %B2, label %B3, !prof !0
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B4:
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ret void
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}
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!0 = !{!"branch_weights", i32 4, i32 124}
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; CHECK: Machine code for function test1:
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; CHECK: Successors according to CFG: BB#2(0x7c000000 / 0x80000000 = 96.88%) BB#1(0x04000000 / 0x80000000 = 3.12%)
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@g0 = common global i32 0, align 4
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define void @test1(i32 %a, i32 %b, i32* %c, i32* %d, i32* %e) {
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%test0 = icmp slt i32 %a, %b
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br i1 %test0, label %B1, label %B2, !prof !1
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B1:
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br label %B3
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B2:
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store i32 2, i32* %c
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br label %B3
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B3:
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store i32 3, i32* %e
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ret void
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}
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!1 = !{!"branch_weights", i32 248, i32 8}
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