1; RUN: llc < %s -mtriple=powerpc64-unknown-linux-gnu | FileCheck %s 2target 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(i32* %P) #0 { 6entry: 7 %tobool = icmp eq i32* %P, null 8 br i1 %tobool, label %if.end, label %if.then 9 10if.then: ; preds = %entry 11 store i32 0, i32* %P, align 4 12 br label %if.end 13 14if.end: ; preds = %entry, %if.then 15 ret void 16 17; CHECK: @foo 18; CHECK: beqlr 19; CHECK: blr 20} 21 22define void @bar(i32* %P, i32* %Q) #0 { 23entry: 24 %tobool = icmp eq i32* %P, null 25 br i1 %tobool, label %if.else, label %if.then 26 27if.then: ; preds = %entry 28 store i32 0, i32* %P, align 4 29 %tobool1 = icmp eq i32* %Q, null 30 br i1 %tobool1, label %if.end3, label %if.then2 31 32if.then2: ; preds = %if.then 33 store i32 1, i32* %Q, align 4 34 br label %if.end3 35 36if.else: ; preds = %entry 37 store i32 0, i32* %Q, align 4 38 br label %if.end3 39 40if.end3: ; preds = %if.then, %if.then2, %if.else 41 ret void 42 43; CHECK: @bar 44; CHECK: beqlr 45; CHECK: blr 46} 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 i8* @dont_assert(i32 %x) { 55; LLVM would assert due to moving an early return into the jump table block and 56; removing one of its predecessors despite that block ending with an indirect 57; branch. 58entry: 59 switch i32 %x, label %sw.epilog [ 60 i32 1, label %return 61 i32 2, label %sw.bb1 62 i32 3, label %sw.bb2 63 i32 4, label %sw.bb3 64 i32 255, label %sw.bb4 65 ] 66sw.bb1: br label %return 67sw.bb2: br label %return 68sw.bb3: br label %return 69sw.bb4: br label %return 70sw.epilog: br label %return 71return: 72 %retval.0 = phi i8* [ null, %sw.epilog ], 73 [ getelementptr inbounds ([2 x i8], [2 x i8]* @.str4, i64 0, i64 0), %sw.bb4 ], 74 [ getelementptr inbounds ([2 x i8], [2 x i8]* @.str3, i64 0, i64 0), %sw.bb3 ], 75 [ getelementptr inbounds ([2 x i8], [2 x i8]* @.str2, i64 0, i64 0), %sw.bb2 ], 76 [ getelementptr inbounds ([2 x i8], [2 x i8]* @.str1, i64 0, i64 0), %sw.bb1 ], 77 [ getelementptr inbounds ([2 x i8], [2 x i8]* @.str0, i64 0, i64 0), %entry ] 78 ret i8* %retval.0 79} 80 81attributes #0 = { nounwind } 82