mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-10-22 20:43:44 +02:00
3319b28944
Add assembler support for instructions manipulating the FPC. Also add codegen support via the GCC compatibility builtins: __builtin_s390_sfpc __builtin_s390_efpc llvm-svn: 288525
68 lines
1.3 KiB
LLVM
68 lines
1.3 KiB
LLVM
; Test floating-point control register intrinsics.
|
|
;
|
|
; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
|
|
|
|
declare void @llvm.s390.sfpc(i32)
|
|
declare i32 @llvm.s390.efpc()
|
|
|
|
; SFPC.
|
|
define void @test_sfpc(i32 %fpc) {
|
|
; CHECK-LABEL: test_sfpc:
|
|
; CHECK: sfpc %r2
|
|
; CHECK: br %r14
|
|
call void @llvm.s390.sfpc(i32 %fpc)
|
|
ret void
|
|
}
|
|
|
|
; EFPC.
|
|
define i32 @test_efpc() {
|
|
; CHECK-LABEL: test_efpc:
|
|
; CHECK: efpc %r2
|
|
; CHECK: br %r14
|
|
%res = call i32 @llvm.s390.efpc()
|
|
ret i32 %res
|
|
}
|
|
|
|
; LFPC.
|
|
define void @test_lfpc1(i32 *%ptr) {
|
|
; CHECK-LABEL: test_lfpc1:
|
|
; CHECK: lfpc 0(%r2)
|
|
; CHECK: br %r14
|
|
%fpc = load i32, i32 *%ptr
|
|
call void @llvm.s390.sfpc(i32 %fpc)
|
|
ret void
|
|
}
|
|
|
|
; LFPC with offset.
|
|
define void @test_lfpc2(i32 *%ptr) {
|
|
; CHECK-LABEL: test_lfpc2:
|
|
; CHECK: lfpc 4092(%r2)
|
|
; CHECK: br %r14
|
|
%ptr1 = getelementptr i32, i32 *%ptr, i32 1023
|
|
%fpc = load i32, i32 *%ptr1
|
|
call void @llvm.s390.sfpc(i32 %fpc)
|
|
ret void
|
|
}
|
|
|
|
; STFPC.
|
|
define void @test_stfpc1(i32 *%ptr) {
|
|
; CHECK-LABEL: test_stfpc1:
|
|
; CHECK: stfpc 0(%r2)
|
|
; CHECK: br %r14
|
|
%fpc = call i32 @llvm.s390.efpc()
|
|
store i32 %fpc, i32 *%ptr
|
|
ret void
|
|
}
|
|
|
|
; STFPC with offset.
|
|
define void @test_stfpc2(i32 *%ptr) {
|
|
; CHECK-LABEL: test_stfpc2:
|
|
; CHECK: stfpc 4092(%r2)
|
|
; CHECK: br %r14
|
|
%fpc = call i32 @llvm.s390.efpc()
|
|
%ptr1 = getelementptr i32, i32 *%ptr, i32 1023
|
|
store i32 %fpc, i32 *%ptr1
|
|
ret void
|
|
}
|
|
|