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llvm-6502/test/CodeGen/AArch64/func-calls.ll
Tim Northover 9105f66d6f AArch64/ARM64: remove AArch64 from tree prior to renaming ARM64. 
I'm doing this in two phases for a better "git blame" record. This
commit removes the previous AArch64 backend and redirects all
functionality to ARM64. It also deduplicates test-lines and removes
orphaned AArch64 tests.

The next step will be "git mv ARM64 AArch64" and rewire most of the
tests.

Hopefully LLVM is still functional, though it would be even better if
no-one ever had to care because the rename happens straight
afterwards.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209576 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-24 12:42:26 +00:00

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; RUN: llc -verify-machineinstrs < %s -mtriple=arm64-none-linux-gnu | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-ARM64
; RUN: llc -verify-machineinstrs < %s -mtriple=arm64-none-linux-gnu -mattr=-neon | FileCheck --check-prefix=CHECK --check-prefix=CHECK-ARM64-NONEON %s
; RUN: llc -verify-machineinstrs < %s -mtriple=arm64-none-linux-gnu -mattr=-fp-armv8 | FileCheck --check-prefix=CHECK-NOFP %s
; RUN: llc -verify-machineinstrs < %s -mtriple=arm64_be-none-linux-gnu | FileCheck --check-prefix=CHECK --check-prefix=CHECK-BE %s
%myStruct = type { i64 , i8, i32 }
@var8 = global i8 0
@var8_2 = global i8 0
@var32 = global i32 0
@var64 = global i64 0
@var128 = global i128 0
@varfloat = global float 0.0
@varfloat_2 = global float 0.0
@vardouble = global double 0.0
@varstruct = global %myStruct zeroinitializer
@varsmallstruct = global [2 x i64] zeroinitializer
declare void @take_i8s(i8 %val1, i8 %val2)
declare void @take_floats(float %val1, float %val2)
define void @simple_args() {
; CHECK-LABEL: simple_args:
%char1 = load i8* @var8
%char2 = load i8* @var8_2
call void @take_i8s(i8 %char1, i8 %char2)
; CHECK-DAG: ldrb w0, [{{x[0-9]+}}, {{#?}}:lo12:var8]
; CHECK-DAG: ldrb w1, [{{x[0-9]+}}, {{#?}}:lo12:var8_2]
; CHECK: bl take_i8s
%float1 = load float* @varfloat
%float2 = load float* @varfloat_2
call void @take_floats(float %float1, float %float2)
; CHECK-DAG: ldr s1, [{{x[0-9]+}}, {{#?}}:lo12:varfloat_2]
; CHECK-DAG: ldr s0, [{{x[0-9]+}}, {{#?}}:lo12:varfloat]
; CHECK: bl take_floats
; CHECK-NOFP-NOT: ldr s1,
; CHECK-NOFP-NOT: ldr s0,
ret void
}
declare i32 @return_int()
declare double @return_double()
declare [2 x i64] @return_smallstruct()
declare void @return_large_struct(%myStruct* sret %retval)
define void @simple_rets() {
; CHECK-LABEL: simple_rets:
%int = call i32 @return_int()
store i32 %int, i32* @var32
; CHECK: bl return_int
; CHECK: str w0, [{{x[0-9]+}}, {{#?}}:lo12:var32]
%dbl = call double @return_double()
store double %dbl, double* @vardouble
; CHECK: bl return_double
; CHECK: str d0, [{{x[0-9]+}}, {{#?}}:lo12:vardouble]
; CHECK-NOFP-NOT: str d0,
%arr = call [2 x i64] @return_smallstruct()
store [2 x i64] %arr, [2 x i64]* @varsmallstruct
; CHECK: bl return_smallstruct
; CHECK: str x1, [{{x[0-9]+}}, #8]
; CHECK: str x0, [{{x[0-9]+}}, {{#?}}:lo12:varsmallstruct]
call void @return_large_struct(%myStruct* sret @varstruct)
; CHECK: add x8, {{x[0-9]+}}, {{#?}}:lo12:varstruct
; CHECK: bl return_large_struct
ret void
}
declare i32 @struct_on_stack(i8 %var0, i16 %var1, i32 %var2, i64 %var3, i128 %var45,
i32* %var6, %myStruct* byval %struct, i32 %stacked,
double %notstacked)
declare void @stacked_fpu(float %var0, double %var1, float %var2, float %var3,
float %var4, float %var5, float %var6, float %var7,
float %var8)
define void @check_stack_args() {
; CHECK-LABEL: check_stack_args:
call i32 @struct_on_stack(i8 0, i16 12, i32 42, i64 99, i128 1,
i32* @var32, %myStruct* byval @varstruct,
i32 999, double 1.0)
; Want to check that the final double is passed in registers and
; that varstruct is passed on the stack. Rather dependent on how a
; memcpy gets created, but the following works for now.
; CHECK-ARM64-DAG: str {{q[0-9]+}}, [sp]
; CHECK-ARM64-DAG: fmov d[[FINAL_DOUBLE:[0-9]+]], #1.0
; CHECK-ARM64: mov v0.16b, v[[FINAL_DOUBLE]].16b
; CHECK-ARM64-NONEON-DAG: str {{q[0-9]+}}, [sp]
; CHECK-ARM64-NONEON-DAG: fmov d[[FINAL_DOUBLE:[0-9]+]], #1.0
; CHECK-ARM64-NONEON: fmov d0, d[[FINAL_DOUBLE]]
; CHECK: bl struct_on_stack
; CHECK-NOFP-NOT: fmov
call void @stacked_fpu(float -1.0, double 1.0, float 4.0, float 2.0,
float -2.0, float -8.0, float 16.0, float 1.0,
float 64.0)
; CHECK-ARM64: movz [[SIXTY_FOUR:w[0-9]+]], #0x4280, lsl #16
; CHECK-ARM64: str [[SIXTY_FOUR]], [sp]
; CHECK-ARM64-NONEON: movz [[SIXTY_FOUR:w[0-9]+]], #0x4280, lsl #16
; CHECK-ARM64-NONEON: str [[SIXTY_FOUR]], [sp]
; CHECK: bl stacked_fpu
ret void
}
declare void @check_i128_stackalign(i32 %val0, i32 %val1, i32 %val2, i32 %val3,
i32 %val4, i32 %val5, i32 %val6, i32 %val7,
i32 %stack1, i128 %stack2)
declare void @check_i128_regalign(i32 %val0, i128 %val1)
define void @check_i128_align() {
; CHECK-LABEL: check_i128_align:
%val = load i128* @var128
call void @check_i128_stackalign(i32 0, i32 1, i32 2, i32 3,
i32 4, i32 5, i32 6, i32 7,
i32 42, i128 %val)
; CHECK: ldr [[I128LO:x[0-9]+]], [{{x[0-9]+}}, {{#?}}:lo12:var128]
; CHECK: ldr [[I128HI:x[0-9]+]], [{{x[0-9]+}}, #8]
; CHECK-ARM64: stp [[I128LO]], [[I128HI]], [sp, #16]
; CHECK-ARM64-NONEON: stp [[I128LO]], [[I128HI]], [sp, #16]
; CHECK: bl check_i128_stackalign
call void @check_i128_regalign(i32 0, i128 42)
; CHECK-NOT: mov x1
; CHECK-LE: movz x2, #{{0x2a|42}}
; CHECK-LE: mov x3, xzr
; CHECK-BE: movz {{x|w}}3, #{{0x2a|42}}
; CHECK-BE: mov x2, xzr
; CHECK: bl check_i128_regalign
ret void
}
@fptr = global void()* null
define void @check_indirect_call() {
; CHECK-LABEL: check_indirect_call:
%func = load void()** @fptr
call void %func()
; CHECK: ldr [[FPTR:x[0-9]+]], [{{x[0-9]+}}, {{#?}}:lo12:fptr]
; CHECK: blr [[FPTR]]
ret void
}
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