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authorStephen Hines <srhines@google.com>2014-12-01 14:51:49 -0800
committerStephen Hines <srhines@google.com>2014-12-02 16:08:10 -0800
commit37ed9c199ca639565f6ce88105f9e39e898d82d0 (patch)
tree8fb36d3910e3ee4c4e1b7422f4f017108efc52f5 /test/CodeGen/SPARC
parentd2327b22152ced7bc46dc629fc908959e8a52d03 (diff)
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Update aosp/master LLVM for rebase to r222494.
Change-Id: Ic787f5e0124df789bd26f3f24680f45e678eef2d
Diffstat (limited to 'test/CodeGen/SPARC')
-rw-r--r--test/CodeGen/SPARC/empty-functions.ll32
1 files changed, 32 insertions, 0 deletions
diff --git a/test/CodeGen/SPARC/empty-functions.ll b/test/CodeGen/SPARC/empty-functions.ll
new file mode 100644
index 0000000..38d2889
--- /dev/null
+++ b/test/CodeGen/SPARC/empty-functions.ll
@@ -0,0 +1,32 @@
+; RUN: llc < %s -mtriple=sparc-linux-gnu | FileCheck -check-prefix=LINUX-NO-FP %s
+; RUN: llc < %s -mtriple=sparc-linux-gnu -disable-fp-elim | FileCheck -check-prefix=LINUX-FP %s
+
+define void @func() {
+entry:
+ unreachable
+}
+
+; An empty function is perfectly fine on ELF.
+; LINUX-NO-FP: func:
+; LINUX-NO-FP-NEXT: .cfi_startproc
+; LINUX-NO-FP-NEXT: {{^}}!
+; LINUX-NO-FP-NEXT: {{^}}.L{{.*}}:{{$}}
+; LINUX-NO-FP-NEXT: .size func, .L{{.*}}-func
+; LINUX-NO-FP-NEXT: .cfi_endproc
+
+; A cfi directive can point to the end of a function. It (and in fact the
+; entire body) could be optimized out because of the unreachable, but we
+; don't do it right now.
+; LINUX-FP: func:
+; LINUX-FP-NEXT: .cfi_startproc
+; LINUX-FP-NEXT: {{^}}!
+; LINUX-FP-NEXT: save %sp, -96, %sp
+; LINUX-FP-NEXT: {{^}}.L{{.*}}:{{$}}
+; LINUX-FP-NEXT: .cfi_def_cfa_register %fp
+; LINUX-FP-NEXT: {{^}}.L{{.*}}:{{$}}
+; LINUX-FP-NEXT: .cfi_window_save
+; LINUX-FP-NEXT: {{^}}.L{{.*}}:{{$}}
+; LINUX-FP-NEXT: .cfi_register 15, 31
+; LINUX-FP-NEXT: {{^}}.L{{.*}}:{{$}}
+; LINUX-FP-NEXT: .size func, .Ltmp3-func
+; LINUX-FP-NEXT: .cfi_endproc