Imported Upstream version 5.18.0.167

Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a

external/llvm/test/CodeGen/ARM/thumb1-varalloc.ll

@@ -1,125 +0,0 @@
-; RUN: llc < %s -mtriple=thumbv6-apple-darwin | FileCheck %s
-; RUN: llc < %s -mtriple=thumbv6-apple-darwin -regalloc=basic | FileCheck %s
-; RUN: llc < %s -o %t -filetype=obj -mtriple=thumbv6-apple-darwin
-; RUN: llvm-objdump -triple=thumbv6-apple-darwin -d %t | FileCheck %s
-
-@__bar = external hidden global i8*
-@__baz = external hidden global i8*
-
-; rdar://8819685
-define i8* @_foo() {
-entry:
-; CHECK-LABEL: foo:
-
-	%size = alloca i32, align 4
-	%0 = load i8*, i8** @__bar, align 4
-	%1 = icmp eq i8* %0, null
-	br i1 %1, label %bb1, label %bb3
-; CHECK: bne
-		
-bb1:
-	store i32 1026, i32* %size, align 4
-	%2 = alloca [1026 x i8], align 1
-; CHECK: mov     [[R0:r[0-9]+]], sp
-; CHECK: adds    {{r[0-9]+}}, [[R0]], {{r[0-9]+}}
-	%3 = getelementptr inbounds [1026 x i8], [1026 x i8]* %2, i32 0, i32 0
-	%4 = call i32 @_called_func(i8* %3, i32* %size) nounwind
-	%5 = icmp eq i32 %4, 0
-	br i1 %5, label %bb2, label %bb3
-	
-bb2:
-	%6 = call i8* @strdup(i8* %3) nounwind
-	store i8* %6, i8** @__baz, align 4
-	br label %bb3
-	
-bb3:
-	%.0 = phi i8* [ %0, %entry ], [ %6, %bb2 ], [ %3, %bb1 ]
-; CHECK: subs    r4, #5
-; CHECK-NEXT: mov     sp, r4
-; CHECK-NEXT: pop     {r4, r5, r6, r7, pc}
-	ret i8* %.0
-}
-
-declare noalias i8* @strdup(i8* nocapture) nounwind
-declare i32 @_called_func(i8*, i32*) nounwind
-
-; Simple variable ending up *at* sp.
-define void @test_simple_var() {
-; CHECK-LABEL: test_simple_var:
-
-  %addr32 = alloca i32
-  %addr8 = bitcast i32* %addr32 to i8*
-
-; CHECK: mov r0, sp
-; CHECK-NOT: adds r0
-; CHECK: bl
-  call void @take_ptr(i8* %addr8)
-  ret void
-}
-
-; Simple variable ending up at aligned offset from sp.
-define void @test_local_var_addr_aligned() {
-; CHECK-LABEL: test_local_var_addr_aligned:
-
-  %addr1.32 = alloca i32
-  %addr1 = bitcast i32* %addr1.32 to i8*
-  %addr2.32 = alloca i32
-  %addr2 = bitcast i32* %addr2.32 to i8*
-
-; CHECK: add r0, sp, #{{[0-9]+}}
-; CHECK: bl
-  call void @take_ptr(i8* %addr1)
-
-; CHECK: mov r0, sp
-; CHECK-NOT: add r0
-; CHECK: bl
-  call void @take_ptr(i8* %addr2)
-
-  ret void
-}
-
-; Simple variable ending up at aligned offset from sp.
-define void @test_local_var_big_offset() {
-; CHECK-LABEL: test_local_var_big_offset:
-  %addr1.32 = alloca i32, i32 257
-  %addr1 = bitcast i32* %addr1.32 to i8*
-  %addr2.32 = alloca i32, i32 257
-
-; CHECK: add [[RTMP:r[0-9]+]], sp, #1020
-; CHECK: adds [[RTMP]], #8
-; CHECK: bl
-  call void @take_ptr(i8* %addr1)
-
-  ret void
-}
-
-; Max range addressable with tADDrSPi
-define void @test_local_var_offset_1020() {
-; CHECK-LABEL: test_local_var_offset_1020
-  %addr1 = alloca i8, i32 4
-  %addr2 = alloca i8, i32 1020
-
-; CHECK: add r0, sp, #1020
-; CHECK-NEXT: bl
-  call void @take_ptr(i8* %addr1)
-
-  ret void
-}
-
-; Max range addressable with tADDrSPi + tADDi8 is 1275, however the automatic
-; 4-byte aligning of objects on the stack combined with 8-byte stack alignment
-; means that 1268 is the max offset we can use.
-define void @test_local_var_offset_1268() {
-; CHECK-LABEL: test_local_var_offset_1268
-  %addr1 = alloca i8, i32 1
-  %addr2 = alloca i8, i32 1268
-
-; CHECK: add r0, sp, #1020
-; CHECK: adds r0, #248
-; CHECK-NEXT: bl
-  call void @take_ptr(i8* %addr1)
-
-  ret void
-}
-
-declare void @take_ptr(i8*)