add struct example

examples/c/struct4.c

@@ -0,0 +1,19 @@
+int nonce = 1; // For random input
+
+struct Foo
+{
+    int x;
+};
+
+struct Foo f()
+{
+    struct Foo x;
+    x.x = nonce;
+    return x;
+}
+
+int main()
+{
+    int x = f().x;
+    return x;
+}

examples/ir0/struct4.ir

@@ -0,0 +1,39 @@
+struct Foo : { x:i32 }
+var i32 @nonce = 1
+
+fun struct Foo @f () {
+init:
+  bid: b0
+  allocations: 
+    %l0:struct Foo:x
+
+block b0:
+  %b0:i0:i32* = getelementptr %l0:struct Foo* offset 0:i64
+  %b0:i1:i32 = load @nonce:i32*
+  %b0:i2:unit = store %b0:i1:i32 %b0:i0:i32*
+  %b0:i3:struct Foo = load %l0:struct Foo*
+  ret %b0:i3:struct Foo
+
+block b1:
+  ret undef:struct Foo
+}
+
+fun i32 @main () {
+init:
+  bid: b0
+  allocations: 
+    %l0:i32:x
+    %l1:struct Foo:t0
+
+block b0:
+  %b0:i0:struct Foo = call @f:[ret:struct Foo params:()]*()
+  %b0:i1:unit = store %b0:i0:struct Foo %l1:struct Foo*
+  %b0:i2:i32* = getelementptr %l1:struct Foo* offset 0:i64
+  %b0:i3:i32 = load %b0:i2:i32*
+  %b0:i4:unit = store %b0:i3:i32 %l0:i32*
+  %b0:i5:i32 = load %l0:i32*
+  ret %b0:i5:i32
+
+block b1:
+  ret 0:i32
+}

examples/ir1/struct4.ir

@@ -0,0 +1,33 @@
+struct Foo : { x:i32 }
+var i32 @nonce = 1
+
+fun struct Foo @f () {
+init:
+  bid: b0
+  allocations: 
+    %l0:struct Foo:x
+
+block b0:
+  %b0:i0:i32* = getelementptr %l0:struct Foo* offset 0:i64
+  %b0:i1:i32 = load @nonce:i32*
+  %b0:i2:unit = store %b0:i1:i32 %b0:i0:i32*
+  %b0:i3:struct Foo = load %l0:struct Foo*
+  ret %b0:i3:struct Foo
+}
+
+fun i32 @main () {
+init:
+  bid: b0
+  allocations: 
+    %l0:i32:x
+    %l1:struct Foo:t0
+
+block b0:
+  %b0:i0:struct Foo = call @f:[ret:struct Foo params:()]*()
+  %b0:i1:unit = store %b0:i0:struct Foo %l1:struct Foo*
+  %b0:i2:i32* = getelementptr %l1:struct Foo* offset 0:i64
+  %b0:i3:i32 = load %b0:i2:i32*
+  %b0:i4:unit = store %b0:i3:i32 %l0:i32*
+  %b0:i5:i32 = load %l0:i32*
+  ret %b0:i5:i32
+}

examples/ir2/struct4.ir

@@ -0,0 +1,33 @@
+struct Foo : { x:i32 }
+var i32 @nonce = 1
+
+fun struct Foo @f () {
+init:
+  bid: b0
+  allocations: 
+    %l0:struct Foo:x
+
+block b0:
+  %b0:i0:i32* = getelementptr %l0:struct Foo* offset 0:i64
+  %b0:i1:i32 = load @nonce:i32*
+  %b0:i2:unit = store %b0:i1:i32 %b0:i0:i32*
+  %b0:i3:struct Foo = load %l0:struct Foo*
+  ret %b0:i3:struct Foo
+}
+
+fun i32 @main () {
+init:
+  bid: b0
+  allocations: 
+    %l0:i32:x
+    %l1:struct Foo:t0
+
+block b0:
+  %b0:i0:struct Foo = call @f:[ret:struct Foo params:()]*()
+  %b0:i1:unit = store %b0:i0:struct Foo %l1:struct Foo*
+  %b0:i2:i32* = getelementptr %l1:struct Foo* offset 0:i64
+  %b0:i3:i32 = load %b0:i2:i32*
+  %b0:i4:unit = nop
+  %b0:i5:unit = nop
+  ret %b0:i3:i32
+}

examples/ir3/struct4.ir

@@ -0,0 +1,30 @@
+struct Foo : { x:i32 }
+var i32 @nonce = 1
+
+fun struct Foo @f () {
+init:
+  bid: b0
+  allocations: 
+    %l0:struct Foo:x
+
+block b0:
+  %b0:i0:i32* = getelementptr %l0:struct Foo* offset 0:i64
+  %b0:i1:i32 = load @nonce:i32*
+  %b0:i2:unit = store %b0:i1:i32 %b0:i0:i32*
+  %b0:i3:struct Foo = load %l0:struct Foo*
+  ret %b0:i3:struct Foo
+}
+
+fun i32 @main () {
+init:
+  bid: b0
+  allocations: 
+    %l0:struct Foo:t0
+
+block b0:
+  %b0:i0:struct Foo = call @f:[ret:struct Foo params:()]*()
+  %b0:i1:unit = store %b0:i0:struct Foo %l0:struct Foo*
+  %b0:i2:i32* = getelementptr %l0:struct Foo* offset 0:i64
+  %b0:i3:i32 = load %b0:i2:i32*
+  ret %b0:i3:i32
+}

examples/ir4/struct4.ir

@@ -0,0 +1,30 @@
+struct Foo : { x:i32 }
+var i32 @nonce = 1
+
+fun struct Foo @f () {
+init:
+  bid: b0
+  allocations: 
+    %l0:struct Foo:x
+
+block b0:
+  %b0:i0:i32* = getelementptr %l0:struct Foo* offset 0:i64
+  %b0:i1:i32 = load @nonce:i32*
+  %b0:i2:unit = store %b0:i1:i32 %b0:i0:i32*
+  %b0:i3:struct Foo = load %l0:struct Foo*
+  ret %b0:i3:struct Foo
+}
+
+fun i32 @main () {
+init:
+  bid: b0
+  allocations: 
+    %l0:struct Foo:t0
+
+block b0:
+  %b0:i0:struct Foo = call @f:[ret:struct Foo params:()]*()
+  %b0:i1:unit = store %b0:i0:struct Foo %l0:struct Foo*
+  %b0:i2:i32* = getelementptr %l0:struct Foo* offset 0:i64
+  %b0:i3:i32 = load %b0:i2:i32*
+  ret %b0:i3:i32
+}

examples/opt/struct4.ir

@@ -0,0 +1,30 @@
+struct Foo : { x:i32 }
+var i32 @nonce = 1
+
+fun struct Foo @f () {
+init:
+  bid: b0
+  allocations: 
+    %l0:struct Foo:x
+
+block b0:
+  %b0:i0:i32* = getelementptr %l0:struct Foo* offset 0:i64
+  %b0:i1:i32 = load @nonce:i32*
+  %b0:i2:unit = store %b0:i1:i32 %b0:i0:i32*
+  %b0:i3:struct Foo = load %l0:struct Foo*
+  ret %b0:i3:struct Foo
+}
+
+fun i32 @main () {
+init:
+  bid: b0
+  allocations: 
+    %l0:struct Foo:t0
+
+block b0:
+  %b0:i0:struct Foo = call @f:[ret:struct Foo params:()]*()
+  %b0:i1:unit = store %b0:i0:struct Foo %l0:struct Foo*
+  %b0:i2:i32* = getelementptr %l0:struct Foo* offset 0:i64
+  %b0:i3:i32 = load %b0:i2:i32*
+  ret %b0:i3:i32
+}

tests/test_examples.rs

@@ -46,7 +46,7 @@ fn test_opt_between_dirs<O: Optimize<ir::TranslationUnit>>(from: &Path, to: &Pat
     }
 }
 
-const IRGEN_SMALL_TEST_IGNORE_LIST: [&str; 11] = [
+const IRGEN_SMALL_TEST_IGNORE_LIST: [&str; 12] = [
     "examples/c/array.c",
     "examples/c/array2.c",
     "examples/c/array3.c",
@@ -57,6 +57,7 @@ const IRGEN_SMALL_TEST_IGNORE_LIST: [&str; 11] = [
     "examples/c/struct.c",
     "examples/c/struct2.c",
     "examples/c/struct3.c",
+    "examples/c/struct4.c",
     "examples/c/temp2.c",
 ];
 
@@ -68,7 +69,7 @@ const ASMGEN_TEST_DIR_LIST: [&str; 5] = [
     "examples/ir4",
 ];
 
-const ASMGEN_SMALL_TEST_IGNORE_LIST: [&str; 11] = [
+const ASMGEN_SMALL_TEST_IGNORE_LIST: [&str; 12] = [
     "array.ir",
     "array2.ir",
     "array3.ir",
@@ -79,6 +80,7 @@ const ASMGEN_SMALL_TEST_IGNORE_LIST: [&str; 11] = [
     "struct.ir",
     "struct2.ir",
     "struct3.ir",
+    "struct4.ir",
     "temp2.ir",
 ];