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1; RUN: llc -verify-machineinstrs < %s -mtriple=powerpc64-unknown-linux-gnu | FileCheck %s2target datalayout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-f128:128:128-v128:128:128-n32:64"3target triple = "powerpc64-unknown-linux-gnu"4 5define void @foo(ptr %P) #0 {6entry:7 %tobool = icmp eq ptr %P, null8 br i1 %tobool, label %if.end, label %if.then9 10if.then: ; preds = %entry11 store i32 0, ptr %P, align 412 br label %if.end13 14if.end: ; preds = %entry, %if.then15 ret void16 17; CHECK: @foo18; CHECK: beqlr19; CHECK: blr20}21 22define void @bar(ptr %P, ptr %Q) #0 {23entry:24 %tobool = icmp eq ptr %P, null25 br i1 %tobool, label %if.else, label %if.then26 27if.then: ; preds = %entry28 store i32 0, ptr %P, align 429 %tobool1 = icmp eq ptr %Q, null30 br i1 %tobool1, label %if.end3, label %if.then231 32if.then2: ; preds = %if.then33 store i32 1, ptr %Q, align 434 br label %if.end335 36if.else: ; preds = %entry37 store i32 0, ptr %Q, align 438 br label %if.end339 40if.end3: ; preds = %if.then, %if.then2, %if.else41 ret void42 43; CHECK: @bar44; CHECK: beqlr45; CHECK: blr46}47 48 49@.str0 = private unnamed_addr constant [2 x i8] c"a\00"50@.str1 = private unnamed_addr constant [2 x i8] c"b\00"51@.str2 = private unnamed_addr constant [2 x i8] c"c\00"52@.str3 = private unnamed_addr constant [2 x i8] c"d\00"53@.str4 = private unnamed_addr constant [2 x i8] c"e\00"54define ptr @dont_assert(i32 %x) {55; LLVM would assert due to moving an early return into the jump table block and56; removing one of its predecessors despite that block ending with an indirect57; branch.58entry:59 switch i32 %x, label %sw.epilog [60 i32 1, label %return61 i32 2, label %sw.bb162 i32 3, label %sw.bb263 i32 4, label %sw.bb364 i32 255, label %sw.bb465 ]66sw.bb1: br label %return67sw.bb2: br label %return68sw.bb3: br label %return69sw.bb4: br label %return70sw.epilog: br label %return71return:72 %retval.0 = phi ptr [ null, %sw.epilog ],73 [ @.str4, %sw.bb4 ],74 [ @.str3, %sw.bb3 ],75 [ @.str2, %sw.bb2 ],76 [ @.str1, %sw.bb1 ],77 [ @.str0, %entry ]78 ret ptr %retval.079}80 81attributes #0 = { nounwind }82