1 files changed, 96 insertions, 0 deletions
diff --git a/test/CodeGen/WebAssembly/load-ext.ll b/test/CodeGen/WebAssembly/load-ext.ll
new file mode 100644
index 000000000000..0ffcd38a8666
--- /dev/null
+++ b/test/CodeGen/WebAssembly/load-ext.ll
@@ -0,0 +1,96 @@
+; RUN: llc < %s -asm-verbose=false | FileCheck %s
+
+; Test that extending loads are assembled properly.
+
+target datalayout = "e-p:32:32-i64:64-n32:64-S128"
+target triple = "wasm32-unknown-unknown"
+
+; CHECK-LABEL: sext_i8_i32:
+; CHECK: i32.load8_s $push0=, 0($0){{$}}
+; CHECK-NEXT: return $pop0{{$}}
+define i32 @sext_i8_i32(i8 *%p) {
+  %v = load i8, i8* %p
+  %e = sext i8 %v to i32
+  ret i32 %e
+}
+
+; CHECK-LABEL: zext_i8_i32:
+; CHECK: i32.load8_u $push0=, 0($0){{$}}
+; CHECK-NEXT: return $pop0{{$}}
+define i32 @zext_i8_i32(i8 *%p) {
+  %v = load i8, i8* %p
+  %e = zext i8 %v to i32
+  ret i32 %e
+}
+
+; CHECK-LABEL: sext_i16_i32:
+; CHECK: i32.load16_s $push0=, 0($0){{$}}
+; CHECK-NEXT: return $pop0{{$}}
+define i32 @sext_i16_i32(i16 *%p) {
+  %v = load i16, i16* %p
+  %e = sext i16 %v to i32
+  ret i32 %e
+}
+
+; CHECK-LABEL: zext_i16_i32:
+; CHECK: i32.load16_u $push0=, 0($0){{$}}
+; CHECK-NEXT: return $pop0{{$}}
+define i32 @zext_i16_i32(i16 *%p) {
+  %v = load i16, i16* %p
+  %e = zext i16 %v to i32
+  ret i32 %e
+}
+
+; CHECK-LABEL: sext_i8_i64:
+; CHECK: i64.load8_s $push0=, 0($0){{$}}
+; CHECK-NEXT: return $pop0{{$}}
+define i64 @sext_i8_i64(i8 *%p) {
+  %v = load i8, i8* %p
+  %e = sext i8 %v to i64
+  ret i64 %e
+}
+
+; CHECK-LABEL: zext_i8_i64:
+; CHECK: i64.load8_u $push0=, 0($0){{$}}
+; CHECK-NEXT: return $pop0{{$}}
+define i64 @zext_i8_i64(i8 *%p) {
+  %v = load i8, i8* %p
+  %e = zext i8 %v to i64
+  ret i64 %e
+}
+
+; CHECK-LABEL: sext_i16_i64:
+; CHECK: i64.load16_s $push0=, 0($0){{$}}
+; CHECK-NEXT: return $pop0{{$}}
+define i64 @sext_i16_i64(i16 *%p) {
+  %v = load i16, i16* %p
+  %e = sext i16 %v to i64
+  ret i64 %e
+}
+
+; CHECK-LABEL: zext_i16_i64:
+; CHECK: i64.load16_u $push0=, 0($0){{$}}
+; CHECK-NEXT: return $pop0{{$}}
+define i64 @zext_i16_i64(i16 *%p) {
+  %v = load i16, i16* %p
+  %e = zext i16 %v to i64
+  ret i64 %e
+}
+
+; CHECK-LABEL: sext_i32_i64:
+; CHECK: i64.load32_s $push0=, 0($0){{$}}
+; CHECK-NEXT: return $pop0{{$}}
+define i64 @sext_i32_i64(i32 *%p) {
+  %v = load i32, i32* %p
+  %e = sext i32 %v to i64
+  ret i64 %e
+}
+
+; CHECK-LABEL: zext_i32_i64:
+; CHECK: i64.load32_u $push0=, 0($0){{$}}
+; CHECK: return $pop0{{$}}
+define i64 @zext_i32_i64(i32 *%p) {
+  %v = load i32, i32* %p
+  %e = zext i32 %v to i64
+  ret i64 %e
+}