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llvm-mirror/test/Other/X86/mbb-dump.ll
Hiroshi Inoue b51c4baf85 [CodeGen] fix broken successor probability in MBB dump
When printing successor probabilities for a MBB, a human readable value is sometimes shown as 200.0%.
The human readable output is based on getProbabilityIterator, which returns 0xFFFFFFFF for getNumerator() and 0x80000000 for getDenominator() for unknown BranchProbability.
By using getSuccProbability as we do for the non-human readable part, we can avoid this problem.

Differential Revision: https://reviews.llvm.org/D52605

llvm-svn: 343297
2018-09-28 05:27:32 +00:00

26 lines
603 B
LLVM

; RUN: llc < %s 2>&1 -print-after=machine-scheduler -mtriple=x86_64-unknown-unknown | FileCheck %s
; expected MBB dump output
; # *** IR Dump After Machine Instruction Scheduler ***:
; # Machine code for function foo: NoPHIs, TracksLiveness
;
; 0B bb.0 (%ir-block.0):
; successors: %bb.1(0x80000000); %bb.1(100.00%)
;
; 16B bb.1.next:
; ; predecessors: %bb.0
; previously, it was broken as
; successors: %bb.1(0x80000000); %bb.1(200.00%)
define void @foo(){
; CHECK: IR Dump After Machine Instruction Scheduler
; CHECK: bb.0
; CHECK: 100.0
; CHECK: bb.1
br label %next
next:
ret void
}