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Diffstat (limited to 'test/CodeGen/ARM/taildup-branch-weight.ll')
-rw-r--r-- | test/CodeGen/ARM/taildup-branch-weight.ll | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/test/CodeGen/ARM/taildup-branch-weight.ll b/test/CodeGen/ARM/taildup-branch-weight.ll new file mode 100644 index 0000000..0a16071 --- /dev/null +++ b/test/CodeGen/ARM/taildup-branch-weight.ll @@ -0,0 +1,54 @@ +; RUN: llc -mtriple=arm-eabi -print-machineinstrs=tailduplication -tail-dup-size=100 \ +; RUN: -enable-tail-merge=false -disable-cgp %s -o /dev/null 2>&1 \ +; RUN: | FileCheck %s + +; CHECK: Machine code for function test0: +; CHECK: Successors according to CFG: BB#1(4) BB#2(124) + +define void @test0(i32 %a, i32 %b, i32* %c, i32* %d) { +entry: + store i32 3, i32* %d + br label %B1 + +B2: + store i32 2, i32* %c + br label %B4 + +B3: + store i32 2, i32* %c + br label %B4 + +B1: + store i32 1, i32* %d + %test0 = icmp slt i32 %a, %b + br i1 %test0, label %B2, label %B3, !prof !0 + +B4: + ret void +} + +!0 = metadata !{metadata !"branch_weights", i32 4, i32 124} + +; CHECK: Machine code for function test1: +; CHECK: Successors according to CFG: BB#1(8) BB#2(248) + +@g0 = common global i32 0, align 4 + +define void @test1(i32 %a, i32 %b, i32* %c, i32* %d, i32* %e) { + + %test0 = icmp slt i32 %a, %b + br i1 %test0, label %B1, label %B2, !prof !1 + +B1: + br label %B3 + +B2: + store i32 2, i32* %c + br label %B3 + +B3: + store i32 3, i32* %e + ret void +} + +!1 = metadata !{metadata !"branch_weights", i32 248, i32 8} |