Imported Upstream version 5.18.0.167

Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a

external/llvm/test/CodeGen/ARM/aggregate-padding.ll

@@ -1,101 +0,0 @@
-; RUN: llc -mtriple=armv7-linux-gnueabihf %s -o - | FileCheck %s
-
-; [2 x i64] should be contiguous when split (e.g. we shouldn't try to align all
-; i32 components to 64 bits). Also makes sure i64 based types are properly
-; aligned on the stack.
-define i64 @test_i64_contiguous_on_stack([8 x double], float, i32 %in, [2 x i64] %arg) nounwind {
-; CHECK-LABEL: test_i64_contiguous_on_stack:
-; CHECK-DAG: ldr [[LO0:r[0-9]+]], [sp, #8]
-; CHECK-DAG: ldr [[HI0:r[0-9]+]], [sp, #12]
-; CHECK-DAG: ldr [[LO1:r[0-9]+]], [sp, #16]
-; CHECK-DAG: ldr [[HI1:r[0-9]+]], [sp, #20]
-; CHECK: adds r0, [[LO0]], [[LO1]]
-; CHECK: adc r1, [[HI0]], [[HI1]]
-
-  %val1 = extractvalue [2 x i64] %arg, 0
-  %val2 = extractvalue [2 x i64] %arg, 1
-  %sum = add i64 %val1, %val2
-  ret i64 %sum
-}
-
-; [2 x i64] should try to use looks for 4 regs, not 8 (which might happen if the
-; i64 -> i32, i32 split wasn't handled correctly).
-define i64 @test_2xi64_uses_4_regs([8 x double], float, [2 x i64] %arg) nounwind {
-; CHECK-LABEL: test_2xi64_uses_4_regs:
-; CHECK-DAG: mov r0, r2
-; CHECK-DAG: mov r1, r3
-
-  %val = extractvalue [2 x i64] %arg, 1
-  ret i64 %val
-}
-
-; An aggregate should be able to split between registers and stack if there is
-; nothing else on the stack.
-define i32 @test_aggregates_split([8 x double], i32, [4 x i32] %arg) nounwind {
-; CHECK-LABEL: test_aggregates_split:
-; CHECK: ldr [[VAL3:r[0-9]+]], [sp]
-; CHECK: add r0, r1, [[VAL3]]
-
-  %val0 = extractvalue [4 x i32] %arg, 0
-  %val3 = extractvalue [4 x i32] %arg, 3
-  %sum = add i32 %val0, %val3
-  ret i32 %sum
-}
-
-; If an aggregate has to be moved entirely onto the stack, nothing should be
-; able to use r0-r3 any more. Also checks that [2 x i64] properly aligned when
-; it uses regs.
-define i32 @test_no_int_backfilling([8 x double], float, i32, [2 x i64], i32 %arg) nounwind {
-; CHECK-LABEL: test_no_int_backfilling:
-; CHECK: ldr r0, [sp, #24]
-  ret i32 %arg
-}
-
-; Even if the argument was successfully allocated as reg block, there should be
-; no backfillig to r1.
-define i32 @test_no_int_backfilling_regsonly(i32, [1 x i64], i32 %arg) {
-; CHECK-LABEL: test_no_int_backfilling_regsonly:
-; CHECK: ldr r0, [sp]
-  ret i32 %arg
-}
-
-; If an aggregate has to be moved entirely onto the stack, nothing should be
-; able to use r0-r3 any more.
-define float @test_no_float_backfilling([7 x double], [4 x i32], i32, [4 x double], float %arg) nounwind {
-; CHECK-LABEL: test_no_float_backfilling:
-; CHECK: vldr s0, [sp, #40]
-  ret float %arg
-}
-
-; They're a bit pointless, but types like [N x i8] should work as well.
-define i8 @test_i8_in_regs(i32, [3 x i8] %arg) {
-; CHECK-LABEL: test_i8_in_regs:
-; CHECK: add r0, r1, r3
-  %val0 = extractvalue [3 x i8] %arg, 0
-  %val2 = extractvalue [3 x i8] %arg, 2
-  %sum = add i8 %val0, %val2
-  ret i8 %sum
-}
-
-define i16 @test_i16_split(i32, i32, [3 x i16] %arg) {
-; CHECK-LABEL: test_i16_split:
-; CHECK: ldrh [[VAL2:r[0-9]+]], [sp]
-; CHECK: add r0, r2, [[VAL2]]
-  %val0 = extractvalue [3 x i16] %arg, 0
-  %val2 = extractvalue [3 x i16] %arg, 2
-  %sum = add i16 %val0, %val2
-  ret i16 %sum
-}
-
-; Beware: on the stack each i16 still gets a 32-bit slot, the array is not
-; packed.
-define i16 @test_i16_forced_stack([8 x double], double, i32, i32, [3 x i16] %arg) {
-; CHECK-LABEL: test_i16_forced_stack:
-; CHECK-DAG: ldrh [[VAL0:r[0-9]+]], [sp, #8]
-; CHECK-DAG: ldrh [[VAL2:r[0-9]+]], [sp, #16]
-; CHECK: add r0, [[VAL0]], [[VAL2]]
-  %val0 = extractvalue [3 x i16] %arg, 0
-  %val2 = extractvalue [3 x i16] %arg, 2
-  %sum = add i16 %val0, %val2
-  ret i16 %sum
-}