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llvm-6502/test/Transforms/CodeGenPrepare/statepoint-relocate.ll

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[GC] CodeGenPrep transform: simplify offsetable relocate The transform is somewhat involved, but the basic idea is simple: find derived pointers that have been offset from the base pointer using gep and replace the relocate of the derived pointer with a gep to the relocated base pointer (with the same offset). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@226060 91177308-0d34-0410-b5e6-96231b3b80d8
2015-01-14 23:27:07 +00:00
; RUN: opt -codegenprepare -S < %s | FileCheck %s
target datalayout = "e-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-pc-linux-gnu"
declare zeroext i1 @return_i1()
define i32 @test_sor_basic(i32* %base) {
; CHECK: getelementptr i32* %base, i32 15
; CHECK: getelementptr i32* %base-new, i32 15
entry:
%ptr = getelementptr i32* %base, i32 15
%tok = call i32 (i1 ()*, i32, i32, ...)* @llvm.experimental.gc.statepoint.p0f_i1f(i1 ()* @return_i1, i32 0, i32 0, i32 0, i32* %base, i32* %ptr)
%base-new = call i32* @llvm.experimental.gc.relocate.p0i32(i32 %tok, i32 4, i32 4)
%ptr-new = call i32* @llvm.experimental.gc.relocate.p0i32(i32 %tok, i32 4, i32 5)
%ret = load i32* %ptr-new
ret i32 %ret
}
define i32 @test_sor_two_derived(i32* %base) {
; CHECK: getelementptr i32* %base, i32 15
; CHECK: getelementptr i32* %base, i32 12
; CHECK: getelementptr i32* %base-new, i32 15
; CHECK: getelementptr i32* %base-new, i32 12
entry:
%ptr = getelementptr i32* %base, i32 15
%ptr2 = getelementptr i32* %base, i32 12
%tok = call i32 (i1 ()*, i32, i32, ...)* @llvm.experimental.gc.statepoint.p0f_i1f(i1 ()* @return_i1, i32 0, i32 0, i32 0, i32* %base, i32* %ptr, i32* %ptr2)
%base-new = call i32* @llvm.experimental.gc.relocate.p0i32(i32 %tok, i32 4, i32 4)
%ptr-new = call i32* @llvm.experimental.gc.relocate.p0i32(i32 %tok, i32 4, i32 5)
%ptr2-new = call i32* @llvm.experimental.gc.relocate.p0i32(i32 %tok, i32 4, i32 6)
%ret = load i32* %ptr-new
ret i32 %ret
}
define i32 @test_sor_ooo(i32* %base) {
; CHECK: getelementptr i32* %base, i32 15
; CHECK: getelementptr i32* %base-new, i32 15
entry:
%ptr = getelementptr i32* %base, i32 15
%tok = call i32 (i1 ()*, i32, i32, ...)* @llvm.experimental.gc.statepoint.p0f_i1f(i1 ()* @return_i1, i32 0, i32 0, i32 0, i32* %base, i32* %ptr)
%ptr-new = call i32* @llvm.experimental.gc.relocate.p0i32(i32 %tok, i32 4, i32 5)
%base-new = call i32* @llvm.experimental.gc.relocate.p0i32(i32 %tok, i32 4, i32 4)
%ret = load i32* %ptr-new
ret i32 %ret
}
define i32 @test_sor_gep_smallint([3 x i32]* %base) {
; CHECK: getelementptr [3 x i32]* %base, i32 0, i32 2
; CHECK: getelementptr [3 x i32]* %base-new, i32 0, i32 2
entry:
%ptr = getelementptr [3 x i32]* %base, i32 0, i32 2
%tok = call i32 (i1 ()*, i32, i32, ...)* @llvm.experimental.gc.statepoint.p0f_i1f(i1 ()* @return_i1, 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 4, i32 4)
%ptr-new = call i32* @llvm.experimental.gc.relocate.p0i32(i32 %tok, i32 4, i32 5)
%ret = load i32* %ptr-new
ret i32 %ret
}
define i32 @test_sor_gep_largeint([3 x i32]* %base) {
; CHECK: getelementptr [3 x i32]* %base, i32 0, i32 21
; CHECK-NOT: getelementptr [3 x i32]* %base-new, i32 0, i32 21
entry:
%ptr = getelementptr [3 x i32]* %base, i32 0, i32 21
%tok = call i32 (i1 ()*, i32, i32, ...)* @llvm.experimental.gc.statepoint.p0f_i1f(i1 ()* @return_i1, 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 4, i32 4)
%ptr-new = call i32* @llvm.experimental.gc.relocate.p0i32(i32 %tok, i32 4, i32 5)
%ret = load i32* %ptr-new
ret i32 %ret
}
define i32 @test_sor_noop(i32* %base) {
; CHECK: getelementptr i32* %base, i32 15
; CHECK: call i32* @llvm.experimental.gc.relocate.p0i32(i32 %tok, i32 4, i32 5)
; CHECK: call i32* @llvm.experimental.gc.relocate.p0i32(i32 %tok, i32 4, i32 6)
entry:
%ptr = getelementptr i32* %base, i32 15
%ptr2 = getelementptr i32* %base, i32 12
%tok = call i32 (i1 ()*, i32, i32, ...)* @llvm.experimental.gc.statepoint.p0f_i1f(i1 ()* @return_i1, i32 0, i32 0, i32 0, i32* %base, i32* %ptr, i32* %ptr2)
%ptr-new = call i32* @llvm.experimental.gc.relocate.p0i32(i32 %tok, i32 4, i32 5)
%ptr2-new = call i32* @llvm.experimental.gc.relocate.p0i32(i32 %tok, i32 4, i32 6)
%ret = load i32* %ptr-new
ret i32 %ret
}
declare i32 @llvm.experimental.gc.statepoint.p0f_i1f(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)
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