1 files changed, 17 insertions, 0 deletions
diff --git a/test/CodeGen/PowerPC/fastisel-gep-promote-before-add.ll b/test/CodeGen/PowerPC/fastisel-gep-promote-before-add.ll
new file mode 100644
index 0000000000..4bcacf0097
--- /dev/null
+++ b/test/CodeGen/PowerPC/fastisel-gep-promote-before-add.ll
@@ -0,0 +1,17 @@
+; fastisel should not fold add with non-pointer bitwidth
+; sext(a) + sext(b) != sext(a + b)
+; RUN: llc -mtriple=powerpc64-unknown-freebsd10.0 %s -O0 -o - | FileCheck %s
+
+define zeroext i8 @gep_promotion(i8* %ptr) nounwind uwtable ssp {
+entry:
+  %ptr.addr = alloca i8*, align 8
+  %add = add i8 64, 64 ; 0x40 + 0x40
+  %0 = load i8** %ptr.addr, align 8
+
+  ; CHECK-LABEL: gep_promotion:
+  ; CHECK: lbz {{[0-9]+}}, 0({{.*}})
+  %arrayidx = getelementptr inbounds i8* %0, i8 %add
+
+  %1 = load i8* %arrayidx, align 1
+  ret i8 %1
+}