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llvm-mirror/test/CodeGen/ARM/taildup-branch-weight.ll
Francis Visoiu Mistrih f2712301ce [CodeGen] Unify the syntax of MBB successors in MIR and -debug output
Instead of:

Successors according to CFG: %bb.6(0x12492492 / 0x80000000 = 14.29%)

print:

successors: %bb.6(0x12492492); %bb.6(14.29%)
llvm-svn: 324685
2018-02-09 00:10:31 +00:00

55 lines
1.0 KiB
LLVM

; 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: %bb.1(0x04000000), %bb.2(0x7c000000)
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 = !{!"branch_weights", i32 4, i32 124}
; CHECK: Machine code for function test1:
; CHECK: successors: %bb.2(0x7c000000), %bb.1(0x04000000)
@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 = !{!"branch_weights", i32 248, i32 8}