llvm-6502/test/CodeGen/SystemZ/args-01.ll
Ulrich Weigand b503b49b51 [SystemZ] Add CodeGen test cases
This adds all CodeGen tests for the SystemZ target.

This version of the patch incorporates feedback from a review by
Sean Silva.  Thanks to all reviewers!

Patch by Richard Sandiford.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181204 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-06 16:17:29 +00:00

75 lines
2.8 KiB
LLVM

; 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-INT loads doesn't matter. The same goes for the
; CHECK_FP128-* stores and the CHECK-STACK stores. It would be OK to reorder
; them in response to future code changes.
define void @foo() {
; CHECK-INT: foo:
; CHECK-INT: lhi %r2, 1
; CHECK-INT: lhi %r3, 2
; CHECK-INT: lhi %r4, 3
; CHECK-INT: lghi %r5, 4
; CHECK-INT: la %r6, {{224|240}}(%r15)
; CHECK-INT: brasl %r14, bar@PLT
;
; CHECK-FLOAT: foo:
; CHECK-FLOAT: lzer %f0
; CHECK-FLOAT: lcebr %f4, %f0
; CHECK-FLOAT: brasl %r14, bar@PLT
;
; CHECK-DOUBLE: foo:
; CHECK-DOUBLE: lzdr %f2
; CHECK-DOUBLE: lcdbr %f6, %f2
; CHECK-DOUBLE: brasl %r14, bar@PLT
;
; CHECK-FP128-1: foo:
; CHECK-FP128-1: aghi %r15, -256
; CHECK-FP128-1: lzxr %f0
; CHECK-FP128-1: std %f0, 224(%r15)
; CHECK-FP128-1: std %f2, 232(%r15)
; CHECK-FP128-1: brasl %r14, bar@PLT
;
; CHECK-FP128-2: foo:
; CHECK-FP128-2: aghi %r15, -256
; CHECK-FP128-2: lzxr %f0
; CHECK-FP128-2: std %f0, 240(%r15)
; CHECK-FP128-2: std %f2, 248(%r15)
; CHECK-FP128-2: brasl %r14, bar@PLT
;
; CHECK-STACK: 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
}