Home | History | Annotate | Download | only in SystemZ
      1 ; Test the handling of GPR, FPR and stack arguments when integers are
      2 ; sign-extended.
      3 ;
      4 ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s -check-prefix=CHECK-INT
      5 ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s -check-prefix=CHECK-FLOAT
      6 ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s -check-prefix=CHECK-DOUBLE
      7 ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s -check-prefix=CHECK-FP128-1
      8 ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s -check-prefix=CHECK-FP128-2
      9 ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s -check-prefix=CHECK-STACK
     10 
     11 declare void @bar(i8 signext, i16 signext, i32 signext, i64, float, double,
     12                   fp128, i64, float, double, i8 signext, i16 signext,
     13                   i32 signext, i64, float, double, fp128)
     14 
     15 ; There are two indirect fp128 slots, one at offset 224 (the first available
     16 ; byte after the outgoing arguments) and one immediately after it at 240.
     17 ; These slots should be set up outside the glued call sequence, so would
     18 ; normally use %f0/%f2 as the first available 128-bit pair.  This choice
     19 ; is hard-coded in the FP128 tests.
     20 ;
     21 ; The order of the CHECK-STACK stores doesn't matter.  It would be OK to reorder
     22 ; them in response to future code changes.
     23 define void @foo() {
     24 ; CHECK-INT-LABEL: foo:
     25 ; CHECK-INT-DAG: lghi %r2, -1
     26 ; CHECK-INT-DAG: lghi %r3, -2
     27 ; CHECK-INT-DAG: lghi %r4, -3
     28 ; CHECK-INT-DAG: lghi %r5, -4
     29 ; CHECK-INT-DAG: la %r6, {{224|240}}(%r15)
     30 ; CHECK-INT: brasl %r14, bar@PLT
     31 ;
     32 ; CHECK-FLOAT-LABEL: foo:
     33 ; CHECK-FLOAT: lzer %f0
     34 ; CHECK-FLOAT: lcdfr %f4, %f0
     35 ; CHECK-FLOAT: brasl %r14, bar@PLT
     36 ;
     37 ; CHECK-DOUBLE-LABEL: foo:
     38 ; CHECK-DOUBLE: lzdr %f2
     39 ; CHECK-DOUBLE: lcdfr %f6, %f2
     40 ; CHECK-DOUBLE: brasl %r14, bar@PLT
     41 ;
     42 ; CHECK-FP128-1-LABEL: foo:
     43 ; CHECK-FP128-1: aghi %r15, -256
     44 ; CHECK-FP128-1: lzxr %f0
     45 ; CHECK-FP128-1-DAG: std %f0, 224(%r15)
     46 ; CHECK-FP128-1-DAG: std %f2, 232(%r15)
     47 ; CHECK-FP128-1: brasl %r14, bar@PLT
     48 ;
     49 ; CHECK-FP128-2-LABEL: foo:
     50 ; CHECK-FP128-2: aghi %r15, -256
     51 ; CHECK-FP128-2: lzxr %f0
     52 ; CHECK-FP128-2-DAG: std %f0, 240(%r15)
     53 ; CHECK-FP128-2-DAG: std %f2, 248(%r15)
     54 ; CHECK-FP128-2: brasl %r14, bar@PLT
     55 ;
     56 ; CHECK-STACK-LABEL: foo:
     57 ; CHECK-STACK: aghi %r15, -256
     58 ; CHECK-STACK: la [[REGISTER:%r[0-5]+]], {{224|240}}(%r15)
     59 ; CHECK-STACK: stg [[REGISTER]], 216(%r15)
     60 ; CHECK-STACK: mvghi 208(%r15), 0
     61 ; CHECK-STACK: mvhi 204(%r15), 0
     62 ; CHECK-STACK: mvghi 192(%r15), -9
     63 ; CHECK-STACK: mvghi 184(%r15), -8
     64 ; CHECK-STACK: mvghi 176(%r15), -7
     65 ; CHECK-STACK: mvghi 168(%r15), -6
     66 ; CHECK-STACK: mvghi 160(%r15), -5
     67 ; CHECK-STACK: brasl %r14, bar@PLT
     68 
     69   call void @bar (i8 -1, i16 -2, i32 -3, i64 -4, float 0.0, double 0.0,
     70                   fp128 0xL00000000000000000000000000000000, i64 -5,
     71                   float -0.0, double -0.0, i8 -6, i16 -7, i32 -8, i64 -9,
     72                   float 0.0, double 0.0,
     73                   fp128 0xL00000000000000000000000000000000)
     74   ret void
     75 }
     76