summaryrefslogtreecommitdiffstats
path: root/llvm/test/Transforms/RewriteStatepointsForGC
diff options
context:
space:
mode:
Diffstat (limited to 'llvm/test/Transforms/RewriteStatepointsForGC')
-rw-r--r--llvm/test/Transforms/RewriteStatepointsForGC/vector-bitcast.ll26
1 files changed, 26 insertions, 0 deletions
diff --git a/llvm/test/Transforms/RewriteStatepointsForGC/vector-bitcast.ll b/llvm/test/Transforms/RewriteStatepointsForGC/vector-bitcast.ll
new file mode 100644
index 00000000000..981942a91ee
--- /dev/null
+++ b/llvm/test/Transforms/RewriteStatepointsForGC/vector-bitcast.ll
@@ -0,0 +1,26 @@
+; RUN: opt -S -rewrite-statepoints-for-gc < %s | FileCheck %s
+;
+; A test to make sure that we can look through bitcasts of
+; vector types when a base pointer is contained in a vector.
+
+target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128-ni:1"
+target triple = "x86_64-unknown-linux-gnu"
+
+; Function Attrs: uwtable
+define void @test() gc "statepoint-example" {
+; CHECK-LABEL: @test
+entry:
+; CHECK-LABEL: entry
+; CHECK: %bc = bitcast
+; CHECK: %[[p1:[A-Za-z0-9_]+]] = extractelement
+; CHECK: %[[p2:[A-Za-z0-9_]+]] = extractelement
+; CHECK: llvm.experimental.gc.statepoint
+; CHECK: %[[p2]].relocated = {{.+}} @llvm.experimental.gc.relocate
+; CHECK: %[[p1]].relocated = {{.+}} @llvm.experimental.gc.relocate
+; CHECK: load atomic
+ %bc = bitcast <8 x i8 addrspace(1)*> undef to <8 x i32 addrspace(1)*>
+ %ptr= extractelement <8 x i32 addrspace(1)*> %bc, i32 7
+ %0 = call i8 addrspace(1)* undef() [ "deopt"() ]
+ %1 = load atomic i32, i32 addrspace(1)* %ptr unordered, align 4
+ unreachable
+}
OpenPOWER on IntegriCloud