[gc.statepoint] Change gc.statepoint intrinsic's return type to token type instead of i32 type

Summary: This patch changes gc.statepoint intrinsic's return type to token type instead of i32 type. Using token types could prevent LLVM to merge different gc.statepoint nodes into PHI nodes and cause further problems with gc relocations. The patch also changes the way on how gc.relocate and gc.result look for their corresponding gc.statepoint on unwind path. The current implementation uses the selector value extracted from a { i8*, i32 } landingpad as a hook to find the gc.statepoint, while the patch directly uses a token type landingpad (http://reviews.llvm.org/D15405) to find the gc.statepoint. 

Reviewers: sanjoy, JosephTremoulet, pgavlin, igor-laevsky, mjacob

Subscribers: reames, mjacob, sanjoy, llvm-commits

Differential Revision: http://reviews.llvm.org/D15662

llvm-svn: 256443

1 files changed, 33 insertions, 33 deletions

diff --git a/llvm/test/Transforms/CodeGenPrepare/statepoint-relocate.ll b/llvm/test/Transforms/CodeGenPrepare/statepoint-relocate.ll
index 77a27fa25df..b31dfe7f3fa 100644
--- a/llvm/test/Transforms/CodeGenPrepare/statepoint-relocate.ll
+++ b/llvm/test/Transforms/CodeGenPrepare/statepoint-relocate.ll
@@ -10,9 +10,9 @@ define i32 @test_sor_basic(i32* %base) gc "statepoint-example" {
 ; CHECK: getelementptr i32, i32* %base-new, i32 15
 entry:
        %ptr = getelementptr i32, i32* %base, i32 15
-       %tok = call i32 (i64, i32, i1 ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_i1f(i64 0, i32 0, i1 ()* @return_i1, i32 0, i32 0, i32 0, i32 0, i32* %base, i32* %ptr)
-       %base-new = call i32* @llvm.experimental.gc.relocate.p0i32(i32 %tok, i32 7, i32 7)
-       %ptr-new = call i32* @llvm.experimental.gc.relocate.p0i32(i32 %tok, i32 7, i32 8)
+       %tok = call token (i64, i32, i1 ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_i1f(i64 0, i32 0, i1 ()* @return_i1, i32 0, i32 0, i32 0, i32 0, i32* %base, i32* %ptr)
+       %base-new = call i32* @llvm.experimental.gc.relocate.p0i32(token %tok, i32 7, i32 7)
+       %ptr-new = call i32* @llvm.experimental.gc.relocate.p0i32(token %tok, i32 7, i32 8)
        %ret = load i32, i32* %ptr-new
        ret i32 %ret
 }
@@ -25,10 +25,10 @@ define i32 @test_sor_two_derived(i32* %base) gc "statepoint-example" {
 entry:
        %ptr = getelementptr i32, i32* %base, i32 15
        %ptr2 = getelementptr i32, i32* %base, i32 12
-       %tok = call i32 (i64, i32, i1 ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_i1f(i64 0, i32 0, i1 ()* @return_i1, i32 0, i32 0, i32 0, i32 0, i32* %base, i32* %ptr, i32* %ptr2)
-       %base-new = call i32* @llvm.experimental.gc.relocate.p0i32(i32 %tok, i32 7, i32 7)
-       %ptr-new = call i32* @llvm.experimental.gc.relocate.p0i32(i32 %tok, i32 7, i32 8)
-       %ptr2-new = call i32* @llvm.experimental.gc.relocate.p0i32(i32 %tok, i32 7, i32 9)
+       %tok = call token (i64, i32, i1 ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_i1f(i64 0, i32 0, i1 ()* @return_i1, i32 0, i32 0, i32 0, i32 0, i32* %base, i32* %ptr, i32* %ptr2)
+       %base-new = call i32* @llvm.experimental.gc.relocate.p0i32(token %tok, i32 7, i32 7)
+       %ptr-new = call i32* @llvm.experimental.gc.relocate.p0i32(token %tok, i32 7, i32 8)
+       %ptr2-new = call i32* @llvm.experimental.gc.relocate.p0i32(token %tok, i32 7, i32 9)
        %ret = load i32, i32* %ptr-new
        ret i32 %ret
 }
@@ -38,9 +38,9 @@ define i32 @test_sor_ooo(i32* %base) gc "statepoint-example" {
 ; CHECK: getelementptr i32, i32* %base-new, i32 15
 entry:
        %ptr = getelementptr i32, i32* %base, i32 15
-       %tok = call i32 (i64, i32, i1 ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_i1f(i64 0, i32 0, i1 ()* @return_i1, i32 0, i32 0, i32 0, i32 0, i32* %base, i32* %ptr)
-       %ptr-new = call i32* @llvm.experimental.gc.relocate.p0i32(i32 %tok, i32 7, i32 8)
-       %base-new = call i32* @llvm.experimental.gc.relocate.p0i32(i32 %tok, i32 7, i32 7)
+       %tok = call token (i64, i32, i1 ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_i1f(i64 0, i32 0, i1 ()* @return_i1, i32 0, i32 0, i32 0, i32 0, i32* %base, i32* %ptr)
+       %ptr-new = call i32* @llvm.experimental.gc.relocate.p0i32(token %tok, i32 7, i32 8)
+       %base-new = call i32* @llvm.experimental.gc.relocate.p0i32(token %tok, i32 7, i32 7)
        %ret = load i32, i32* %ptr-new
        ret i32 %ret
 }
@@ -50,9 +50,9 @@ define i32 @test_sor_gep_smallint([3 x i32]* %base) gc "statepoint-example" {
 ; CHECK: getelementptr [3 x i32], [3 x i32]* %base-new, i32 0, i32 2
 entry:
        %ptr = getelementptr [3 x i32], [3 x i32]* %base, i32 0, i32 2
-       %tok = call i32 (i64, i32, i1 ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_i1f(i64 0, i32 0, i1 ()* @return_i1, i32 0, i32 0, i32 0, i32 0, [3 x i32]* %base, i32* %ptr)
-       %base-new = call [3 x i32]* @llvm.experimental.gc.relocate.p0a3i32(i32 %tok, i32 7, i32 7)
-       %ptr-new = call i32* @llvm.experimental.gc.relocate.p0i32(i32 %tok, i32 7, i32 8)
+       %tok = call token (i64, i32, i1 ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_i1f(i64 0, i32 0, i1 ()* @return_i1, i32 0, i32 0, i32 0, i32 0, [3 x i32]* %base, i32* %ptr)
+       %base-new = call [3 x i32]* @llvm.experimental.gc.relocate.p0a3i32(token %tok, i32 7, i32 7)
+       %ptr-new = call i32* @llvm.experimental.gc.relocate.p0i32(token %tok, i32 7, i32 8)
        %ret = load i32, i32* %ptr-new
        ret i32 %ret
 }
@@ -62,23 +62,23 @@ define i32 @test_sor_gep_largeint([3 x i32]* %base) gc "statepoint-example" {
 ; CHECK-NOT: getelementptr [3 x i32], [3 x i32]* %base-new, i32 0, i32 21
 entry:
        %ptr = getelementptr [3 x i32], [3 x i32]* %base, i32 0, i32 21
-       %tok = call i32 (i64, i32, i1 ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_i1f(i64 0, i32 0, i1 ()* @return_i1, i32 0, i32 0, i32 0, i32 0, [3 x i32]* %base, i32* %ptr)
-       %base-new = call [3 x i32]* @llvm.experimental.gc.relocate.p0a3i32(i32 %tok, i32 7, i32 7)
-       %ptr-new = call i32* @llvm.experimental.gc.relocate.p0i32(i32 %tok, i32 7, i32 8)
+       %tok = call token (i64, i32, i1 ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_i1f(i64 0, i32 0, i1 ()* @return_i1, i32 0, i32 0, i32 0, i32 0, [3 x i32]* %base, i32* %ptr)
+       %base-new = call [3 x i32]* @llvm.experimental.gc.relocate.p0a3i32(token %tok, i32 7, i32 7)
+       %ptr-new = call i32* @llvm.experimental.gc.relocate.p0i32(token %tok, i32 7, i32 8)
        %ret = load i32, i32* %ptr-new
        ret i32 %ret
 }
 
 define i32 @test_sor_noop(i32* %base) gc "statepoint-example" {
 ; CHECK: getelementptr i32, i32* %base, i32 15
-; CHECK: call i32* @llvm.experimental.gc.relocate.p0i32(i32 %tok, i32 7, i32 8)
-; CHECK: call i32* @llvm.experimental.gc.relocate.p0i32(i32 %tok, i32 7, i32 9)
+; CHECK: call i32* @llvm.experimental.gc.relocate.p0i32(token %tok, i32 7, i32 8)
+; CHECK: call i32* @llvm.experimental.gc.relocate.p0i32(token %tok, i32 7, i32 9)
 entry:
        %ptr = getelementptr i32, i32* %base, i32 15
        %ptr2 = getelementptr i32, i32* %base, i32 12
-       %tok = call i32 (i64, i32, i1 ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_i1f(i64 0, i32 0, i1 ()* @return_i1, i32 0, i32 0, i32 0, i32 0, i32* %base, i32* %ptr, i32* %ptr2)
-       %ptr-new = call i32* @llvm.experimental.gc.relocate.p0i32(i32 %tok, i32 7, i32 8)
-       %ptr2-new = call i32* @llvm.experimental.gc.relocate.p0i32(i32 %tok, i32 7, i32 9)
+       %tok = call token (i64, i32, i1 ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_i1f(i64 0, i32 0, i1 ()* @return_i1, i32 0, i32 0, i32 0, i32 0, i32* %base, i32* %ptr, i32* %ptr2)
+       %ptr-new = call i32* @llvm.experimental.gc.relocate.p0i32(token %tok, i32 7, i32 8)
+       %ptr2-new = call i32* @llvm.experimental.gc.relocate.p0i32(token %tok, i32 7, i32 9)
        %ret = load i32, i32* %ptr-new
        ret i32 %ret
 }
@@ -90,10 +90,10 @@ define i32 @test_sor_basic_wrong_order(i32* %base) gc "statepoint-example" {
 entry:
        %ptr = getelementptr i32, i32* %base, i32 15
        ; CHECK: getelementptr i32, i32* %base, i32 15
-       %tok = call i32 (i64, i32, i1 ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_i1f(i64 0, i32 0, i1 ()* @return_i1, i32 0, i32 0, i32 0, i32 0, i32* %base, i32* %ptr)
-       %ptr-new = call i32* @llvm.experimental.gc.relocate.p0i32(i32 %tok, i32 7, i32 8)
-       %base-new = call i32* @llvm.experimental.gc.relocate.p0i32(i32 %tok, i32 7, i32 7)
-       ; CHECK: %base-new = call i32* @llvm.experimental.gc.relocate.p0i32(i32 %tok, i32 7, i32 7)
+       %tok = call token (i64, i32, i1 ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_i1f(i64 0, i32 0, i1 ()* @return_i1, i32 0, i32 0, i32 0, i32 0, i32* %base, i32* %ptr)
+       %ptr-new = call i32* @llvm.experimental.gc.relocate.p0i32(token %tok, i32 7, i32 8)
+       %base-new = call i32* @llvm.experimental.gc.relocate.p0i32(token %tok, i32 7, i32 7)
+       ; CHECK: %base-new = call i32* @llvm.experimental.gc.relocate.p0i32(token %tok, i32 7, i32 7)
        ; CHECK-NEXT: getelementptr i32, i32* %base-new, i32 15
        %ret = load i32, i32* %ptr-new
        ret i32 %ret
@@ -106,22 +106,22 @@ define i32 @test_sor_noop_cross_bb(i1 %external-cond, i32* %base) gc "statepoint
 entry:
        %ptr = getelementptr i32, i32* %base, i32 15
        ; CHECK: getelementptr i32, i32* %base, i32 15
-       %tok = call i32 (i64, i32, i1 ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_i1f(i64 0, i32 0, i1 ()* @return_i1, i32 0, i32 0, i32 0, i32 0, i32* %base, i32* %ptr)
+       %tok = call token (i64, i32, i1 ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_i1f(i64 0, i32 0, i1 ()* @return_i1, i32 0, i32 0, i32 0, i32 0, i32* %base, i32* %ptr)
        br i1 %external-cond, label %left, label %right
 
 left:
-       %ptr-new = call i32* @llvm.experimental.gc.relocate.p0i32(i32 %tok, i32 7, i32 8)
-       ; CHECK: call i32* @llvm.experimental.gc.relocate.p0i32(i32 %tok, i32 7, i32 8)
+       %ptr-new = call i32* @llvm.experimental.gc.relocate.p0i32(token %tok, i32 7, i32 8)
+       ; CHECK: call i32* @llvm.experimental.gc.relocate.p0i32(token %tok, i32 7, i32 8)
        %ret-new = load i32, i32* %ptr-new
        ret i32 %ret-new
 
 right:
-       %ptr-base = call i32* @llvm.experimental.gc.relocate.p0i32(i32 %tok, i32 7, i32 7)
-       ; CHECK: call i32* @llvm.experimental.gc.relocate.p0i32(i32 %tok, i32 7, i32 7)
+       %ptr-base = call i32* @llvm.experimental.gc.relocate.p0i32(token %tok, i32 7, i32 7)
+       ; CHECK: call i32* @llvm.experimental.gc.relocate.p0i32(token %tok, i32 7, i32 7)
        %ret-base = load i32, i32* %ptr-base
        ret i32 %ret-base
 }
 
-declare i32 @llvm.experimental.gc.statepoint.p0f_i1f(i64, i32, i1 ()*, i32, i32, ...)
-declare i32* @llvm.experimental.gc.relocate.p0i32(i32, i32, i32)
-declare [3 x i32]* @llvm.experimental.gc.relocate.p0a3i32(i32, i32, i32)
+declare token @llvm.experimental.gc.statepoint.p0f_i1f(i64, i32, i1 ()*, i32, i32, ...)
+declare i32* @llvm.experimental.gc.relocate.p0i32(token, i32, i32)
+declare [3 x i32]* @llvm.experimental.gc.relocate.p0a3i32(token, i32, i32)