From fcca6c690cc86123f175582772cb1554cc7e8d81 Mon Sep 17 00:00:00 2001
From: Quentin Colombet <qcolombet@apple.com>
Date: Fri, 7 Jun 2013 18:36:03 +0000
Subject: Teach AsmPrinter how to print odd constants.

Fix an assertion when the compiler encounters big constants whose bit width is
not a multiple of 64-bits.
Although clang would never generate something like this, the backend should be
able to handle any legal IR.

<rdar://problem/13363576>


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183544 91177308-0d34-0410-b5e6-96231b3b80d8
---
 test/CodeGen/ARM/emit-big-cst.ll  | 18 ++++++++++++++++++
 test/CodeGen/Mips/emit-big-cst.ll | 17 +++++++++++++++++
 test/CodeGen/X86/emit-big-cst.ll  | 17 +++++++++++++++++
 3 files changed, 52 insertions(+)
 create mode 100644 test/CodeGen/ARM/emit-big-cst.ll
 create mode 100644 test/CodeGen/Mips/emit-big-cst.ll
 create mode 100644 test/CodeGen/X86/emit-big-cst.ll

(limited to 'test')

diff --git a/test/CodeGen/ARM/emit-big-cst.ll b/test/CodeGen/ARM/emit-big-cst.ll
new file mode 100644
index 0000000..9a3367d
--- /dev/null
+++ b/test/CodeGen/ARM/emit-big-cst.ll
@@ -0,0 +1,18 @@
+; RUN: llc -mtriple=thumbv7-unknown-unknown < %s | FileCheck %s
+; Check assembly printing of odd constants.
+
+; CHECK: bigCst:
+; CHECK-NEXT: .long 1694510592
+; CHECK-NEXT: .long 2960197
+; CHECK-NEXT: .long 26220
+; CHECK-NEXT: .size bigCst, 12
+
+@bigCst = internal constant i82 483673642326615442599424
+
+define void @accessBig(i64* %storage) {
+  %addr = bitcast i64* %storage to i82*
+  %bigLoadedCst = load volatile i82* @bigCst
+  %tmp = add i82 %bigLoadedCst, 1
+  store i82 %tmp, i82* %addr
+  ret void
+}
diff --git a/test/CodeGen/Mips/emit-big-cst.ll b/test/CodeGen/Mips/emit-big-cst.ll
new file mode 100644
index 0000000..a168743
--- /dev/null
+++ b/test/CodeGen/Mips/emit-big-cst.ll
@@ -0,0 +1,17 @@
+; RUN: llc -march=mips < %s | FileCheck %s
+; Check assembly printing of odd constants.
+
+; CHECK: bigCst:
+; CHECK-NEXT: .8byte 1845068520838224192
+; CHECK-NEXT: .8byte 11776
+; CHECK-NEXT: .size bigCst, 16
+
+@bigCst = internal constant i82 483673642326615442599424
+
+define void @accessBig(i64* %storage) {
+  %addr = bitcast i64* %storage to i82*
+  %bigLoadedCst = load volatile i82* @bigCst
+  %tmp = add i82 %bigLoadedCst, 1
+  store i82 %tmp, i82* %addr
+  ret void
+}
diff --git a/test/CodeGen/X86/emit-big-cst.ll b/test/CodeGen/X86/emit-big-cst.ll
new file mode 100644
index 0000000..96c15d4
--- /dev/null
+++ b/test/CodeGen/X86/emit-big-cst.ll
@@ -0,0 +1,17 @@
+; RUN: llc -mtriple=x86_64-unknown-unknown < %s | FileCheck %s
+; Check assembly printing of odd constants.
+
+; CHECK: bigCst:
+; CHECK-NEXT: .quad 12713950999227904
+; CHECK-NEXT: .quad 26220
+; CHECK-NEXT: .size bigCst, 16
+
+@bigCst = internal constant i82 483673642326615442599424
+
+define void @accessBig(i64* %storage) {
+  %addr = bitcast i64* %storage to i82*
+  %bigLoadedCst = load volatile i82* @bigCst
+  %tmp = add i82 %bigLoadedCst, 1
+  store i82 %tmp, i82* %addr
+  ret void
+}
-- 
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