xref: /aosp_15_r20/external/llvm/test/CodeGen/SystemZ/args-01.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58)

; Test the handling of GPR, FPR and stack arguments when no extension
; type is given.  This type of argument is used for passing structures, etc.
;
; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s -check-prefix=CHECK-INT
; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s -check-prefix=CHECK-FLOAT
; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s -check-prefix=CHECK-DOUBLE
; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s -check-prefix=CHECK-FP128-1
; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s -check-prefix=CHECK-FP128-2
; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s -check-prefix=CHECK-STACK

declare void @bar(i8, i16, i32, i64, float, double, fp128, i64,
                  float, double, i8, i16, i32, i64, float, double, fp128)

; There are two indirect fp128 slots, one at offset 224 (the first available
; byte after the outgoing arguments) and one immediately after it at 240.
; These slots should be set up outside the glued call sequence, so would
; normally use %f0/%f2 as the first available 128-bit pair.  This choice
; is hard-coded in the FP128 tests.
;
; The order of the CHECK-STACK stores doesn't matter.  It would be OK to reorder
; them in response to future code changes.
define void @foo() {
; CHECK-INT-LABEL: foo:
; CHECK-INT-DAG: lhi %r2, 1
; CHECK-INT-DAG: lhi %r3, 2
; CHECK-INT-DAG: lhi %r4, 3
; CHECK-INT-DAG: lghi %r5, 4
; CHECK-INT-DAG: la %r6, {{224|240}}(%r15)
; CHECK-INT: brasl %r14, bar@PLT
;
; CHECK-FLOAT-LABEL: foo:
; CHECK-FLOAT: lzer %f0
; CHECK-FLOAT: lcdfr %f4, %f0
; CHECK-FLOAT: brasl %r14, bar@PLT
;
; CHECK-DOUBLE-LABEL: foo:
; CHECK-DOUBLE: lzdr %f2
; CHECK-DOUBLE: lcdfr %f6, %f2
; CHECK-DOUBLE: brasl %r14, bar@PLT
;
; CHECK-FP128-1-LABEL: foo:
; CHECK-FP128-1: aghi %r15, -256
; CHECK-FP128-1: lzxr %f0
; CHECK-FP128-1-DAG: std %f0, 224(%r15)
; CHECK-FP128-1-DAG: std %f2, 232(%r15)
; CHECK-FP128-1: brasl %r14, bar@PLT
;
; CHECK-FP128-2-LABEL: foo:
; CHECK-FP128-2: aghi %r15, -256
; CHECK-FP128-2: lzxr %f0
; CHECK-FP128-2-DAG: std %f0, 240(%r15)
; CHECK-FP128-2-DAG: std %f2, 248(%r15)
; CHECK-FP128-2: brasl %r14, bar@PLT
;
; CHECK-STACK-LABEL: foo:
; CHECK-STACK: aghi %r15, -256
; CHECK-STACK: la [[REGISTER:%r[0-5]+]], {{224|240}}(%r15)
; CHECK-STACK: stg [[REGISTER]], 216(%r15)
; CHECK-STACK: mvghi 208(%r15), 0
; CHECK-STACK: mvhi 204(%r15), 0
; CHECK-STACK: mvghi 192(%r15), 9
; CHECK-STACK: mvhi 188(%r15), 8
; CHECK-STACK: mvhi 180(%r15), 7
; CHECK-STACK: mvhi 172(%r15), 6
; CHECK-STACK: mvghi 160(%r15), 5
; CHECK-STACK: brasl %r14, bar@PLT

  call void @bar (i8 1, i16 2, i32 3, i64 4, float 0.0, double 0.0,
                  fp128 0xL00000000000000000000000000000000, i64 5,
                  float -0.0, double -0.0, i8 6, i16 7, i32 8, i64 9, float 0.0,
                  double 0.0, fp128 0xL00000000000000000000000000000000)
  ret void
}