1 files changed, 68 insertions, 0 deletions
diff --git a/test/CodeGen/WebAssembly/load-store-i1.ll b/test/CodeGen/WebAssembly/load-store-i1.ll
new file mode 100644
index 000000000000..37b514729479
--- /dev/null
+++ b/test/CodeGen/WebAssembly/load-store-i1.ll
@@ -0,0 +1,68 @@
+; RUN: llc < %s -asm-verbose=false | FileCheck %s
+
+; Test that i1 extending loads and truncating stores are assembled properly.
+
+target datalayout = "e-p:32:32-i64:64-n32:64-S128"
+target triple = "wasm32-unknown-unknown"
+
+; CHECK-LABEL: load_u_i1_i32:
+; CHECK:      i32.load8_u $push[[NUM0:[0-9]+]]=, 0($0){{$}}
+; CHECK-NEXT: return $pop[[NUM0]]{{$}}
+define i32 @load_u_i1_i32(i1* %p) {
+  %v = load i1, i1* %p
+  %e = zext i1 %v to i32
+  ret i32 %e
+}
+
+; CHECK-LABEL: load_s_i1_i32:
+; CHECK:      i32.const $[[NUM1:[0-9]+]]=, 31{{$}}
+; CHECK-NEXT: i32.load8_u $push[[NUM0:[0-9]+]]=, 0($0){{$}}
+; CHECK-NEXT: shl $push[[NUM2:[0-9]+]]=, $pop[[NUM0]], $[[NUM1]]{{$}}
+; CHECK-NEXT: shr_s $push[[NUM3:[0-9]+]]=, $pop[[NUM2]], $[[NUM1]]{{$}}
+; CHECK-NEXT: return $pop[[NUM3]]{{$}}
+define i32 @load_s_i1_i32(i1* %p) {
+  %v = load i1, i1* %p
+  %e = sext i1 %v to i32
+  ret i32 %e
+}
+
+; CHECK-LABEL: load_u_i1_i64:
+; CHECK:      i64.load8_u $push[[NUM0:[0-9]+]]=, 0($0){{$}}
+; CHECK-NEXT: return $pop[[NUM0]]{{$}}
+define i64 @load_u_i1_i64(i1* %p) {
+  %v = load i1, i1* %p
+  %e = zext i1 %v to i64
+  ret i64 %e
+}
+
+; CHECK-LABEL: load_s_i1_i64:
+; CHECK:      i64.const $[[NUM1:[0-9]+]]=, 63{{$}}
+; CHECK-NEXT: i64.load8_u $push[[NUM0:[0-9]+]]=, 0($0){{$}}
+; CHECK-NEXT: shl $push[[NUM2:[0-9]+]]=, $pop[[NUM0]], $[[NUM1]]{{$}}
+; CHECK-NEXT: shr_s $push[[NUM3:[0-9]+]]=, $pop[[NUM2]], $[[NUM1]]{{$}}
+; CHECK-NEXT: return $pop[[NUM3]]{{$}}
+define i64 @load_s_i1_i64(i1* %p) {
+  %v = load i1, i1* %p
+  %e = sext i1 %v to i64
+  ret i64 %e
+}
+
+; CHECK-LABEL: store_i32_i1:
+; CHECK:      i32.const $push[[NUM0:[0-9]+]]=, 1{{$}}
+; CHECK-NEXT: i32.and $push[[NUM1:[0-9]+]]=, $1, $pop[[NUM0]]{{$}}
+; CHECK-NEXT: i32.store8 $discard=, 0($0), $pop[[NUM1]]{{$}}
+define void @store_i32_i1(i1* %p, i32 %v) {
+  %t = trunc i32 %v to i1
+  store i1 %t, i1* %p
+  ret void
+}
+
+; CHECK-LABEL: store_i64_i1:
+; CHECK:      i64.const $push[[NUM0:[0-9]+]]=, 1{{$}}
+; CHECK-NEXT: i64.and $push[[NUM1:[0-9]+]]=, $1, $pop[[NUM0]]{{$}}
+; CHECK-NEXT: i64.store8 $discard=, 0($0), $pop[[NUM1]]{{$}}
+define void @store_i64_i1(i1* %p, i64 %v) {
+  %t = trunc i64 %v to i1
+  store i1 %t, i1* %p
+  ret void
+}