Add a few Subzero intrinsics (not the atomic ones yet).

tests_lit/llvm2ice_tests/nacl-other-intrinsics.ll

+; This tests the NaCl intrinsics not related to atomic operations.
+
+; RUN: %llvm2ice -O2 --verbose none %s | FileCheck %s
+; RUN: %llvm2ice -O2 --verbose none %s | FileCheck %s --check-prefix=CHECKO2REM
+; RUN: %llvm2ice -Om1 --verbose none %s | FileCheck %s
+; RUN: %llvm2ice --verbose none %s | FileCheck --check-prefix=ERRORS %s
+
+; RUN: %llvm2iceinsts %s | %szdiff %s | FileCheck --check-prefix=DUMP %s
+; Some of the cast-eliding for the PNaCl version throws things off.
+; RUN: %llvm2iceinsts --pnacl %s | %szdiff %s \
+; RUN:                           | FileCheck --check-prefix=DUMP %s
+
+declare i8* @llvm.nacl.read.tp()
+declare void @llvm.memcpy.p0i8.p0i8.i32(i8*, i8*, i32, i32, i1)
+declare void @llvm.memmove.p0i8.p0i8.i32(i8*, i8*, i32, i32, i1)
+declare void @llvm.memset.p0i8.i32(i8*, i8, i32, i32, i1)
+declare void @llvm.nacl.longjmp(i8*, i32)
+declare i32 @llvm.nacl.setjmp(i8*)
+declare void @llvm.trap()
+
+define i32 @test_nacl_read_tp() {
+entry:
+  %ptr = call i8* @llvm.nacl.read.tp()
+  %__1 = ptrtoint i8* %ptr to i32
+  ret i32 %__1
+}
+; CHECK-LABEL: test_nacl_read_tp
+; CHECK: mov e{{.*}}, dword ptr gs:[0]
+; CHECKO2REM-LABEL: test_nacl_read_tp
+; CHECKO2REM: mov e{{.*}}, dword ptr gs:[0]
+
+define i32 @test_nacl_read_tp_more_addressing() {
+entry:
+  %ptr = call i8* @llvm.nacl.read.tp()
+  %__1 = ptrtoint i8* %ptr to i32
+  %x = add i32 %__1, %__1
+  %__3 = inttoptr i32 %x to i32*
+  %v = load i32* %__3, align 1
+  %ptr2 = call i8* @llvm.nacl.read.tp()
+  %__6 = ptrtoint i8* %ptr2 to i32
+  %y = add i32 %__6, 4
+  %__8 = inttoptr i32 %y to i32*
+  store i32 %v, i32* %__8, align 1
+  ret i32 %v
+}
+; CHECK-LABEL: test_nacl_read_tp_more_addressing
+; CHECK: mov e{{.*}}, dword ptr gs:[0]
+; CHECK: mov e{{.*}}, dword ptr gs:[0]
+; CHECKO2REM-LABEL: test_nacl_read_tp_more_addressing
+; CHECKO2REM: mov e{{.*}}, dword ptr gs:[0]
+; CHECKO2REM: mov e{{.*}}, dword ptr gs:[0]
+
+define i32 @test_nacl_read_tp_dead(i32 %a) {
+entry:
+  %ptr = call i8* @llvm.nacl.read.tp()
+  ; Not actually using the result of nacl read tp call.
+  ; In O2 mode this should be DCE'ed.
+  ret i32 %a
+}
+; Consider nacl.read.tp side-effect free, so it can be eliminated.
+; CHECKO2REM-LABEL: test_nacl_read_tp_dead
+; CHECKO2REM-NOT: mov e{{.*}}, dword ptr gs:[0]
+
+define void @test_memcpy(i32 %iptr_dst, i32 %iptr_src, i32 %len) {
+entry:
+  %dst = inttoptr i32 %iptr_dst to i8*
+  %src = inttoptr i32 %iptr_src to i8*
+  call void @llvm.memcpy.p0i8.p0i8.i32(i8* %dst, i8* %src,
+                                       i32 %len, i32 1, i1 0)
+  ret void
+}
+; CHECK-LABEL: test_memcpy
+; CHECK: call memcpy
+
+; TODO(jvoung) -- if we want to be clever, we can do this and the memmove,
+; memset without a function call.
+define void @test_memcpy_const_len_align(i32 %iptr_dst, i32 %iptr_src) {
+entry:
+  %dst = inttoptr i32 %iptr_dst to i8*
+  %src = inttoptr i32 %iptr_src to i8*
+  call void @llvm.memcpy.p0i8.p0i8.i32(i8* %dst, i8* %src,
+                                       i32 8, i32 1, i1 0)
+  ret void
+}
+; CHECK-LABEL: test_memcpy_const_len_align
+; CHECK: call memcpy
+
+define void @test_memmove(i32 %iptr_dst, i32 %iptr_src, i32 %len) {
+entry:
+  %dst = inttoptr i32 %iptr_dst to i8*
+  %src = inttoptr i32 %iptr_src to i8*
+  call void @llvm.memmove.p0i8.p0i8.i32(i8* %dst, i8* %src,
+                                        i32 %len, i32 1, i1 0)
+  ret void
+}
+; CHECK-LABEL: test_memmove
+; CHECK: call memmove
+
+define void @test_memmove_const_len_align(i32 %iptr_dst, i32 %iptr_src) {
+entry:
+  %dst = inttoptr i32 %iptr_dst to i8*
+  %src = inttoptr i32 %iptr_src to i8*
+  call void @llvm.memmove.p0i8.p0i8.i32(i8* %dst, i8* %src,
+                                        i32 8, i32 1, i1 0)
+  ret void
+}
+; CHECK-LABEL: test_memmove_const_len_align
+; CHECK: call memmove
+
+define void @test_memset(i32 %iptr_dst, i32 %wide_val, i32 %len) {
+entry:
+  %val = trunc i32 %wide_val to i8
+  %dst = inttoptr i32 %iptr_dst to i8*
+  call void @llvm.memset.p0i8.i32(i8* %dst, i8 %val,
+                                  i32 %len, i32 1, i1 0)
+  ret void
+}
+; CHECK-LABEL: test_memset
+; CHECK: call memset
+
+define void @test_memset_const_len_align(i32 %iptr_dst, i32 %wide_val) {
+entry:
+  %val = trunc i32 %wide_val to i8
+  %dst = inttoptr i32 %iptr_dst to i8*
+  call void @llvm.memset.p0i8.i32(i8* %dst, i8 %val,
+                                  i32 8, i32 1, i1 0)
+  ret void
+}
+; CHECK-LABEL: test_memset_const_len_align
+; CHECK: call memset
+
+define i32 @test_setjmplongjmp(i32 %iptr_env) {
+entry:
+  %env = inttoptr i32 %iptr_env to i8*
+  %i = call i32 @llvm.nacl.setjmp(i8* %env)
+  %r1 = icmp eq i32 %i, 0
+  br i1 %r1, label %Zero, label %NonZero
+Zero:
+  ; Redundant inttoptr, to make --pnacl cast-eliding/re-insertion happy.
+  %env2 = inttoptr i32 %iptr_env to i8*
+  call void @llvm.nacl.longjmp(i8* %env2, i32 1)
+  ret i32 0
+NonZero:
+  ret i32 1
+}
+; CHECK-LABEL: test_setjmplongjmp
+; CHECK: call setjmp
+; CHECK: call longjmp
+; CHECKO2REM-LABEL: test_setjmplongjmp
+; CHECKO2REM: call setjmp
+; CHECKO2REM: call longjmp
+
+define i32 @test_setjmp_unused(i32 %iptr_env, i32 %i_other) {
+entry:
+  %env = inttoptr i32 %iptr_env to i8*
+  %i = call i32 @llvm.nacl.setjmp(i8* %env)
+  ret i32 %i_other
+}
+; Don't consider setjmp side-effect free, so it's not eliminated if
+; result unused.
+; CHECKO2REM-LABEL: test_setjmp_unused
+; CHECKO2REM: call setjmp
+
+define i32 @test_trap(i32 %br) {
+entry:
+  %r1 = icmp eq i32 %br, 0
+  br i1 %r1, label %Zero, label %NonZero
+Zero:
+  call void @llvm.trap()
+  unreachable
+NonZero:
+  ret i32 1
+}
+; CHECK-LABEL: test_trap
+; CHECK: ud2
+
+; ERRORS-NOT: ICE translation error
+; DUMP-NOT: SZ