Teach MergeFunctions about address spaces

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194342 91177308-0d34-0410-b5e6-96231b3b80d8

3 files changed, 93 insertions, 0 deletions

diff --git a/test/Transforms/MergeFunc/address-spaces.ll b/test/Transforms/MergeFunc/address-spaces.ll
new file mode 100644
index 0000000..0d66b82
--- /dev/null
+++ b/test/Transforms/MergeFunc/address-spaces.ll
@@ -0,0 +1,35 @@
+; RUN: opt -S -mergefunc < %s | FileCheck %s
+
+target datalayout = "p:32:32:32-p1:32:32:32-p2:16:16:16"
+
+declare void @foo(i32) nounwind
+
+; None of these functions should be merged
+
+define i32 @store_as0(i32* %x) {
+; CHECK-LABEL: @store_as0(
+; CHECK: call void @foo(
+  %gep = getelementptr i32* %x, i32 4
+  %y = load i32* %gep
+  call void @foo(i32 %y) nounwind
+  ret i32 %y
+}
+
+define i32 @store_as1(i32 addrspace(1)* %x) {
+; CHECK-LABEL: @store_as1(
+; CHECK: call void @foo(
+  %gep = getelementptr i32 addrspace(1)* %x, i32 4
+  %y = load i32 addrspace(1)* %gep
+  call void @foo(i32 %y) nounwind
+  ret i32 %y
+}
+
+define i32 @store_as2(i32 addrspace(2)* %x) {
+; CHECK-LABEL: @store_as2(
+; CHECK: call void @foo(
+  %gep = getelementptr i32 addrspace(2)* %x, i32 4
+  %y = load i32 addrspace(2)* %gep
+  call void @foo(i32 %y) nounwind
+  ret i32 %y
+}
+
diff --git a/test/Transforms/MergeFunc/inttoptr-address-space-2.ll b/test/Transforms/MergeFunc/inttoptr-address-space-2.ll
new file mode 100644
index 0000000..ea350cc
--- /dev/null
+++ b/test/Transforms/MergeFunc/inttoptr-address-space-2.ll
@@ -0,0 +1,29 @@
+; RUN: opt -mergefunc -S < %s | FileCheck %s
+target datalayout = "e-p:32:32:32-p1:16:16:16-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-n8:16:32-S128"
+
+%.qux.2496 = type { i16, %.qux.2497 }
+%.qux.2497 = type { i8, i16 }
+%.qux.2585 = type { i16, i16, i8 addrspace(1)* }
+
+@g2 = external addrspace(1) constant [9 x i8], align 1
+@g3 = internal hidden addrspace(1) constant [1 x i8*] [i8* bitcast (i8 addrspace(1)* (%.qux.2585 addrspace(1)*)* @func35 to i8*)]
+
+
+define internal hidden i16 @func10(%.qux.2496 addrspace(1)* nocapture %this) align 2 {
+bb:
+  %tmp = getelementptr inbounds %.qux.2496 addrspace(1)* %this, i32 0, i32 1, i32 1
+  %tmp1 = load i16 addrspace(1)* %tmp, align 4
+  ret i16 %tmp1
+}
+
+; Checks that this can be merged with an address space differently sized than 0
+define internal hidden i8 addrspace(1)* @func35(%.qux.2585 addrspace(1)* nocapture %this) align 2 {
+bb:
+; CHECK-LABEL: @func35(
+; CHECK: %[[V2:.+]] = bitcast %.qux.2585 addrspace(1)* %{{.*}} to %.qux.2496 addrspace(1)*
+; CHECK: %[[V3:.+]] = tail call i16 @func10(%.qux.2496 addrspace(1)* %[[V2]])
+; CHECK: %{{.*}} = inttoptr i16 %[[V3]] to i8 addrspace(1)*
+  %tmp = getelementptr inbounds %.qux.2585 addrspace(1)* %this, i32 0, i32 2
+  %tmp1 = load i8 addrspace(1)* addrspace(1)* %tmp, align 4
+  ret i8 addrspace(1)* %tmp1
+}
diff --git a/test/Transforms/MergeFunc/inttoptr-address-space.ll b/test/Transforms/MergeFunc/inttoptr-address-space.ll
new file mode 100644
index 0000000..0d834bc
--- /dev/null
+++ b/test/Transforms/MergeFunc/inttoptr-address-space.ll
@@ -0,0 +1,29 @@
+; RUN: opt -mergefunc -S < %s | FileCheck %s
+target datalayout = "e-p:32:32:32-p1:16:16:16-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-n8:16:32-S128"
+
+%.qux.2496 = type { i32, %.qux.2497 }
+%.qux.2497 = type { i8, i32 }
+%.qux.2585 = type { i32, i32, i8* }
+
+@g2 = external addrspace(1) constant [9 x i8], align 1
+@g3 = internal hidden unnamed_addr constant [1 x i8*] [i8* bitcast (i8* (%.qux.2585 addrspace(1)*)* @func35 to i8*)]
+
+
+define internal hidden i32 @func10(%.qux.2496 addrspace(1)* nocapture %this) align 2 {
+bb:
+  %tmp = getelementptr inbounds %.qux.2496 addrspace(1)* %this, i32 0, i32 1, i32 1
+  %tmp1 = load i32 addrspace(1)* %tmp, align 4
+  ret i32 %tmp1
+}
+
+; Check for pointer bitwidth equal assertion failure
+define internal hidden i8* @func35(%.qux.2585 addrspace(1)* nocapture %this) align 2 {
+bb:
+; CHECK-LABEL: @func35(
+; CHECK: %[[V2:.+]] = bitcast %.qux.2585 addrspace(1)* %{{.*}} to %.qux.2496 addrspace(1)*
+; CHECK: %[[V3:.+]] = tail call i32 @func10(%.qux.2496 addrspace(1)* %[[V2]])
+; CHECK: %{{.*}} = inttoptr i32 %[[V3]] to i8*
+  %tmp = getelementptr inbounds %.qux.2585 addrspace(1)* %this, i32 0, i32 2
+  %tmp1 = load i8* addrspace(1)* %tmp, align 4
+  ret i8* %tmp1
+}