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authorEaswaran Raman <eraman@google.com>2016-06-27 22:31:53 +0000
committerEaswaran Raman <eraman@google.com>2016-06-27 22:31:53 +0000
commit22eb80a11419825e13dee2ea34d9e4bf90dfd220 (patch)
tree99d1ec336d95e3c109446bd9dd2459669b782977 /llvm/test/Transforms
parent59ed2ffca38f01b326459d366d1b131ec45eb483 (diff)
downloadbcm5719-llvm-22eb80a11419825e13dee2ea34d9e4bf90dfd220.tar.gz
bcm5719-llvm-22eb80a11419825e13dee2ea34d9e4bf90dfd220.zip
Fix size computation of array allocation in inline cost analysis
Differential revision: http://reviews.llvm.org/D21690 llvm-svn: 273952
Diffstat (limited to 'llvm/test/Transforms')
-rw-r--r--llvm/test/Transforms/Inline/array-alloca.ll36
1 files changed, 36 insertions, 0 deletions
diff --git a/llvm/test/Transforms/Inline/array-alloca.ll b/llvm/test/Transforms/Inline/array-alloca.ll
new file mode 100644
index 00000000000..57aecebd8ba
--- /dev/null
+++ b/llvm/test/Transforms/Inline/array-alloca.ll
@@ -0,0 +1,36 @@
+; RUN: opt -inline -S < %s | FileCheck %s
+%struct.A = type { i32 }
+
+define void @callee1(i32 %M) {
+entry:
+ %vla = alloca i32, i32 %M, align 16
+ ret void
+}
+
+define void @callee2(i32 %M) {
+entry:
+ %vla = alloca %struct.A, i32 %M, align 16
+ ret void
+}
+
+define void @callee3(i128 %M) {
+entry:
+ %vla = alloca i32, i128 %M, align 16
+ ret void
+}
+
+; CHECK-LABEL: @caller
+define void @caller() #0 {
+entry:
+ call void @caller()
+; CHECK-NOT: call void @callee1
+ call void @callee1(i32 256)
+; CHECK: call void @callee2
+ call void @callee2(i32 4096)
+; CHECK: call void @callee3
+; This is to test that there is no overflow in computing allocated size
+; call void @callee3(i128 0x8000000000000000);
+ call void @callee3(i128 9223372036854775808);
+ ret void
+}
+
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