llvm-6502/test/CodeGen/X86/2009-05-11-tailmerge-crash.ll
Dale Johannesen bf06f6a6f1 Fix PR4188. TailMerging can't tolerate inexact
sucessor info.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71478 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-11 21:54:13 +00:00

24 lines
735 B
LLVM

; RUN: llvm-as < %s | llc -march=x86
; PR4188
; ModuleID = '<stdin>'
target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
target triple = "i386-apple-darwin9.6"
@g_9 = external global i32 ; <i32*> [#uses=1]
define i32 @int86(i32 %p_87) nounwind {
entry:
%0 = trunc i32 %p_87 to i8 ; <i8> [#uses=1]
%1 = icmp ne i8 %0, 0 ; <i1> [#uses=1]
br label %bb
bb: ; preds = %bb.i, %bb, %entry
%2 = volatile load i32* @g_9, align 4 ; <i32> [#uses=2]
%3 = icmp sgt i32 %2, 1 ; <i1> [#uses=1]
%4 = and i1 %3, %1 ; <i1> [#uses=1]
br i1 %4, label %bb.i, label %bb
bb.i: ; preds = %bb
%5 = icmp sgt i32 0, %2 ; <i1> [#uses=0]
br label %bb
}