llvm/test/CodeGen/PowerPC/early-ret.ll
Ehsan Amiri 38caf19333 Adding -verify-machineinstrs option to PowerPC tests
Currently we have a number of tests that fail with -verify-machineinstrs.
To detect this cases earlier we add the option to the testcases with the
exception of tests that will currently fail with this option. PR 27456 keeps
track of this failures.

No code review, as discussed with Hal Finkel.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@277624 91177308-0d34-0410-b5e6-96231b3b80d8
2016-08-03 18:17:35 +00:00

82 lines
2.7 KiB
LLVM

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