82 lines
2.7 KiB
LLVM
82 lines
2.7 KiB
LLVM
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; RUN: llc -verify-machineinstrs < %s -mtriple=powerpc64-unknown-linux-gnu | FileCheck %s
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target 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"
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target triple = "powerpc64-unknown-linux-gnu"
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define void @foo(i32* %P) #0 {
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entry:
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%tobool = icmp eq i32* %P, null
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br i1 %tobool, label %if.end, label %if.then
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if.then: ; preds = %entry
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store i32 0, i32* %P, align 4
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br label %if.end
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if.end: ; preds = %entry, %if.then
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ret void
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; CHECK: @foo
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; CHECK: beqlr
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; CHECK: blr
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}
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define void @bar(i32* %P, i32* %Q) #0 {
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entry:
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%tobool = icmp eq i32* %P, null
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br i1 %tobool, label %if.else, label %if.then
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if.then: ; preds = %entry
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store i32 0, i32* %P, align 4
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%tobool1 = icmp eq i32* %Q, null
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br i1 %tobool1, label %if.end3, label %if.then2
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if.then2: ; preds = %if.then
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store i32 1, i32* %Q, align 4
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br label %if.end3
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if.else: ; preds = %entry
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store i32 0, i32* %Q, align 4
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br label %if.end3
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if.end3: ; preds = %if.then, %if.then2, %if.else
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ret void
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; CHECK: @bar
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; CHECK: beqlr
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; CHECK: blr
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}
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@.str0 = private unnamed_addr constant [2 x i8] c"a\00"
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@.str1 = private unnamed_addr constant [2 x i8] c"b\00"
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@.str2 = private unnamed_addr constant [2 x i8] c"c\00"
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@.str3 = private unnamed_addr constant [2 x i8] c"d\00"
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@.str4 = private unnamed_addr constant [2 x i8] c"e\00"
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define i8* @dont_assert(i32 %x) {
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; LLVM would assert due to moving an early return into the jump table block and
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; removing one of its predecessors despite that block ending with an indirect
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; branch.
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entry:
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switch i32 %x, label %sw.epilog [
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i32 1, label %return
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i32 2, label %sw.bb1
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i32 3, label %sw.bb2
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i32 4, label %sw.bb3
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i32 255, label %sw.bb4
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]
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sw.bb1: br label %return
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sw.bb2: br label %return
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sw.bb3: br label %return
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sw.bb4: br label %return
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sw.epilog: br label %return
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return:
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%retval.0 = phi i8* [ null, %sw.epilog ],
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[ getelementptr inbounds ([2 x i8], [2 x i8]* @.str4, i64 0, i64 0), %sw.bb4 ],
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[ getelementptr inbounds ([2 x i8], [2 x i8]* @.str3, i64 0, i64 0), %sw.bb3 ],
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[ getelementptr inbounds ([2 x i8], [2 x i8]* @.str2, i64 0, i64 0), %sw.bb2 ],
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[ getelementptr inbounds ([2 x i8], [2 x i8]* @.str1, i64 0, i64 0), %sw.bb1 ],
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[ getelementptr inbounds ([2 x i8], [2 x i8]* @.str0, i64 0, i64 0), %entry ]
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ret i8* %retval.0
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}
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attributes #0 = { nounwind }
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