llvm-6502/test/CodeGen/PowerPC/fast-isel-conversion.ll
Samuel Antao f75bfbea17 Fix bug in GPR to FPR moves in PPC64LE.
The current implementation of GPR->FPR register moves uses a stack slot. This mechanism writes a double word and reads a word. In big-endian the load address must be displaced by 4-bytes in order to get the right value. In little endian this is no longer required. This patch fixes the issue and adds LE regression tests to fast-isel-conversion which currently expose this problem.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219441 91177308-0d34-0410-b5e6-96231b3b80d8
2014-10-09 20:42:56 +00:00

531 lines
12 KiB
LLVM

; RUN: llc < %s -O0 -verify-machineinstrs -fast-isel-abort -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr7 | FileCheck %s --check-prefix=ELF64
; RUN: llc < %s -O0 -verify-machineinstrs -fast-isel-abort -mtriple=powerpc64le-unknown-linux-gnu -mcpu=pwr8 | FileCheck %s --check-prefix=ELF64LE
; RUN: llc < %s -O0 -verify-machineinstrs -mtriple=powerpc64-unknown-linux-gnu -mcpu=970 | FileCheck %s --check-prefix=PPC970
;; Tests for 970 don't use -fast-isel-abort because we intentionally punt
;; to SelectionDAG in some cases.
; Test sitofp
define void @sitofp_single_i64(i64 %a, float %b) nounwind ssp {
entry:
; ELF64: sitofp_single_i64
; ELF64LE: sitofp_single_i64
; PPC970: sitofp_single_i64
%b.addr = alloca float, align 4
%conv = sitofp i64 %a to float
; ELF64: std
; ELF64: lfd
; ELF64: fcfids
; ELF64LE: std
; ELF64LE: lfd
; ELF64LE: fcfids
; PPC970: std
; PPC970: lfd
; PPC970: fcfid
; PPC970: frsp
store float %conv, float* %b.addr, align 4
ret void
}
define void @sitofp_single_i32(i32 %a, float %b) nounwind ssp {
entry:
; ELF64: sitofp_single_i32
; ELF64LE: sitofp_single_i32
; PPC970: sitofp_single_i32
%b.addr = alloca float, align 4
%conv = sitofp i32 %a to float
; ELF64: std
; stack offset used to load the float: 65524 = -16 + 4
; ELF64: ori {{[0-9]+}}, {{[0-9]+}}, 65524
; ELF64: lfiwax
; ELF64: fcfids
; ELF64LE: std
; stack offset used to load the float: 65520 = -16 + 0
; ELF64LE: ori {{[0-9]+}}, {{[0-9]+}}, 65520
; ELF64LE: lfiwax
; ELF64LE: fcfids
; PPC970: std
; PPC970: lfd
; PPC970: fcfid
; PPC970: frsp
store float %conv, float* %b.addr, align 4
ret void
}
define void @sitofp_single_i16(i16 %a, float %b) nounwind ssp {
entry:
; ELF64: sitofp_single_i16
; ELF64LE: sitofp_single_i16
; PPC970: sitofp_single_i16
%b.addr = alloca float, align 4
%conv = sitofp i16 %a to float
; ELF64: extsh
; ELF64: std
; ELF64: lfd
; ELF64: fcfids
; ELF64LE: extsh
; ELF64LE: std
; ELF64LE: lfd
; ELF64LE: fcfids
; PPC970: extsh
; PPC970: std
; PPC970: lfd
; PPC970: fcfid
; PPC970: frsp
store float %conv, float* %b.addr, align 4
ret void
}
define void @sitofp_single_i8(i8 %a) nounwind ssp {
entry:
; ELF64: sitofp_single_i8
; ELF64LE: sitofp_single_i8
; PPC970: sitofp_single_i8
%b.addr = alloca float, align 4
%conv = sitofp i8 %a to float
; ELF64: extsb
; ELF64: std
; ELF64: lfd
; ELF64: fcfids
; ELF64LE: extsb
; ELF64LE: std
; ELF64LE: lfd
; ELF64LE: fcfids
; PPC970: extsb
; PPC970: std
; PPC970: lfd
; PPC970: fcfid
; PPC970: frsp
store float %conv, float* %b.addr, align 4
ret void
}
define void @sitofp_double_i32(i32 %a, double %b) nounwind ssp {
entry:
; ELF64: sitofp_double_i32
; ELF64LE: sitofp_double_i32
; PPC970: sitofp_double_i32
%b.addr = alloca double, align 8
%conv = sitofp i32 %a to double
; ELF64: std
; stack offset used to load the float: 65524 = -16 + 4
; ELF64: ori {{[0-9]+}}, {{[0-9]+}}, 65524
; ELF64: lfiwax
; ELF64: fcfid
; ELF64LE: std
; stack offset used to load the float: 65520 = -16 + 0
; ELF64LE: ori {{[0-9]+}}, {{[0-9]+}}, 65520
; ELF64LE: lfiwax
; ELF64LE: fcfid
; PPC970: std
; PPC970: lfd
; PPC970: fcfid
store double %conv, double* %b.addr, align 8
ret void
}
define void @sitofp_double_i64(i64 %a, double %b) nounwind ssp {
entry:
; ELF64: sitofp_double_i64
; ELF64LE: sitofp_double_i64
; PPC970: sitofp_double_i64
%b.addr = alloca double, align 8
%conv = sitofp i64 %a to double
; ELF64: std
; ELF64: lfd
; ELF64: fcfid
; ELF64LE: std
; ELF64LE: lfd
; ELF64LE: fcfid
; PPC970: std
; PPC970: lfd
; PPC970: fcfid
store double %conv, double* %b.addr, align 8
ret void
}
define void @sitofp_double_i16(i16 %a, double %b) nounwind ssp {
entry:
; ELF64: sitofp_double_i16
; ELF64LE: sitofp_double_i16
; PPC970: sitofp_double_i16
%b.addr = alloca double, align 8
%conv = sitofp i16 %a to double
; ELF64: extsh
; ELF64: std
; ELF64: lfd
; ELF64: fcfid
; ELF64LE: extsh
; ELF64LE: std
; ELF64LE: lfd
; ELF64LE: fcfid
; PPC970: extsh
; PPC970: std
; PPC970: lfd
; PPC970: fcfid
store double %conv, double* %b.addr, align 8
ret void
}
define void @sitofp_double_i8(i8 %a, double %b) nounwind ssp {
entry:
; ELF64: sitofp_double_i8
; ELF64LE: sitofp_double_i8
; PPC970: sitofp_double_i8
%b.addr = alloca double, align 8
%conv = sitofp i8 %a to double
; ELF64: extsb
; ELF64: std
; ELF64: lfd
; ELF64: fcfid
; ELF64LE: extsb
; ELF64LE: std
; ELF64LE: lfd
; ELF64LE: fcfid
; PPC970: extsb
; PPC970: std
; PPC970: lfd
; PPC970: fcfid
store double %conv, double* %b.addr, align 8
ret void
}
; Test uitofp
define void @uitofp_single_i64(i64 %a, float %b) nounwind ssp {
entry:
; ELF64: uitofp_single_i64
; ELF64LE: uitofp_single_i64
; PPC970: uitofp_single_i64
%b.addr = alloca float, align 4
%conv = uitofp i64 %a to float
; ELF64: std
; ELF64: lfd
; ELF64: fcfidus
; ELF64LE: std
; ELF64LE: lfd
; ELF64LE: fcfidus
; PPC970-NOT: fcfidus
store float %conv, float* %b.addr, align 4
ret void
}
define void @uitofp_single_i32(i32 %a, float %b) nounwind ssp {
entry:
; ELF64: uitofp_single_i32
; ELF64LE: uitofp_single_i32
; PPC970: uitofp_single_i32
%b.addr = alloca float, align 4
%conv = uitofp i32 %a to float
; ELF64: std
; stack offset used to load the float: 65524 = -16 + 4
; ELF64: ori {{[0-9]+}}, {{[0-9]+}}, 65524
; ELF64: lfiwzx
; ELF64: fcfidus
; ELF64LE: std
; stack offset used to load the float: 65520 = -16 + 0
; ELF64LE: ori {{[0-9]+}}, {{[0-9]+}}, 65520
; ELF64LE: lfiwzx
; ELF64LE: fcfidus
; PPC970-NOT: lfiwzx
; PPC970-NOT: fcfidus
store float %conv, float* %b.addr, align 4
ret void
}
define void @uitofp_single_i16(i16 %a, float %b) nounwind ssp {
entry:
; ELF64: uitofp_single_i16
; ELF64LE: uitofp_single_i16
; PPC970: uitofp_single_i16
%b.addr = alloca float, align 4
%conv = uitofp i16 %a to float
; ELF64: rldicl {{[0-9]+}}, {{[0-9]+}}, 0, 48
; ELF64: std
; ELF64: lfd
; ELF64: fcfidus
; ELF64LE: rldicl {{[0-9]+}}, {{[0-9]+}}, 0, 48
; ELF64LE: std
; ELF64LE: lfd
; ELF64LE: fcfidus
; PPC970: rlwinm {{[0-9]+}}, {{[0-9]+}}, 0, 16, 31
; PPC970: std
; PPC970: lfd
; PPC970: fcfid
; PPC970: frsp
store float %conv, float* %b.addr, align 4
ret void
}
define void @uitofp_single_i8(i8 %a) nounwind ssp {
entry:
; ELF64: uitofp_single_i8
; ELF64LE: uitofp_single_i8
; PPC970: uitofp_single_i8
%b.addr = alloca float, align 4
%conv = uitofp i8 %a to float
; ELF64: rldicl {{[0-9]+}}, {{[0-9]+}}, 0, 56
; ELF64: std
; ELF64: lfd
; ELF64: fcfidus
; ELF64LE: rldicl {{[0-9]+}}, {{[0-9]+}}, 0, 56
; ELF64LE: std
; ELF64LE: lfd
; ELF64LE: fcfidus
; PPC970: rlwinm {{[0-9]+}}, {{[0-9]+}}, 0, 24, 31
; PPC970: std
; PPC970: lfd
; PPC970: fcfid
; PPC970: frsp
store float %conv, float* %b.addr, align 4
ret void
}
define void @uitofp_double_i64(i64 %a, double %b) nounwind ssp {
entry:
; ELF64: uitofp_double_i64
; ELF64LE: uitofp_double_i64
; PPC970: uitofp_double_i64
%b.addr = alloca double, align 8
%conv = uitofp i64 %a to double
; ELF64: std
; ELF64: lfd
; ELF64: fcfidu
; ELF64LE: std
; ELF64LE: lfd
; ELF64LE: fcfidu
; PPC970-NOT: fcfidu
store double %conv, double* %b.addr, align 8
ret void
}
define void @uitofp_double_i32(i32 %a, double %b) nounwind ssp {
entry:
; ELF64: uitofp_double_i32
; ELF64LE: uitofp_double_i32
; PPC970: uitofp_double_i32
%b.addr = alloca double, align 8
%conv = uitofp i32 %a to double
; ELF64: std
; stack offset used to load the float: 65524 = -16 + 4
; ELF64: ori {{[0-9]+}}, {{[0-9]+}}, 65524
; ELF64: lfiwzx
; ELF64: fcfidu
; ELF64LE: std
; stack offset used to load the float: 65520 = -16 + 0
; ELF64LE: ori {{[0-9]+}}, {{[0-9]+}}, 65520
; ELF64LE: lfiwzx
; ELF64LE: fcfidu
; PPC970-NOT: lfiwzx
; PPC970-NOT: fcfidu
store double %conv, double* %b.addr, align 8
ret void
}
define void @uitofp_double_i16(i16 %a, double %b) nounwind ssp {
entry:
; ELF64: uitofp_double_i16
; ELF64LE: uitofp_double_i16
; PPC970: uitofp_double_i16
%b.addr = alloca double, align 8
%conv = uitofp i16 %a to double
; ELF64: rldicl {{[0-9]+}}, {{[0-9]+}}, 0, 48
; ELF64: std
; ELF64: lfd
; ELF64: fcfidu
; ELF64LE: rldicl {{[0-9]+}}, {{[0-9]+}}, 0, 48
; ELF64LE: std
; ELF64LE: lfd
; ELF64LE: fcfidu
; PPC970: rlwinm {{[0-9]+}}, {{[0-9]+}}, 0, 16, 31
; PPC970: std
; PPC970: lfd
; PPC970: fcfid
store double %conv, double* %b.addr, align 8
ret void
}
define void @uitofp_double_i8(i8 %a, double %b) nounwind ssp {
entry:
; ELF64: uitofp_double_i8
; ELF64LE: uitofp_double_i8
; PPC970: uitofp_double_i8
%b.addr = alloca double, align 8
%conv = uitofp i8 %a to double
; ELF64: rldicl {{[0-9]+}}, {{[0-9]+}}, 0, 56
; ELF64: std
; ELF64: lfd
; ELF64: fcfidu
; ELF64LE: rldicl {{[0-9]+}}, {{[0-9]+}}, 0, 56
; ELF64LE: std
; ELF64LE: lfd
; ELF64LE: fcfidu
; PPC970: rlwinm {{[0-9]+}}, {{[0-9]+}}, 0, 24, 31
; PPC970: std
; PPC970: lfd
; PPC970: fcfid
store double %conv, double* %b.addr, align 8
ret void
}
; Test fptosi
define void @fptosi_float_i32(float %a) nounwind ssp {
entry:
; ELF64: fptosi_float_i32
; ELF64LE: fptosi_float_i32
; PPC970: fptosi_float_i32
%b.addr = alloca i32, align 4
%conv = fptosi float %a to i32
; ELF64: fctiwz
; ELF64: stfd
; ELF64: lwa
; ELF64LE: fctiwz
; ELF64LE: stfd
; ELF64LE: lwa
; PPC970: fctiwz
; PPC970: stfd
; PPC970: lwa
store i32 %conv, i32* %b.addr, align 4
ret void
}
define void @fptosi_float_i64(float %a) nounwind ssp {
entry:
; ELF64: fptosi_float_i64
; ELF64LE: fptosi_float_i64
; PPC970: fptosi_float_i64
%b.addr = alloca i64, align 4
%conv = fptosi float %a to i64
; ELF64: fctidz
; ELF64: stfd
; ELF64: ld
; ELF64LE: fctidz
; ELF64LE: stfd
; ELF64LE: ld
; PPC970: fctidz
; PPC970: stfd
; PPC970: ld
store i64 %conv, i64* %b.addr, align 4
ret void
}
define void @fptosi_double_i32(double %a) nounwind ssp {
entry:
; ELF64: fptosi_double_i32
; ELF64LE: fptosi_double_i32
; PPC970: fptosi_double_i32
%b.addr = alloca i32, align 8
%conv = fptosi double %a to i32
; ELF64: fctiwz
; ELF64: stfd
; ELF64: lwa
; ELF64LE: fctiwz
; ELF64LE: stfd
; ELF64LE: lwa
; PPC970: fctiwz
; PPC970: stfd
; PPC970: lwa
store i32 %conv, i32* %b.addr, align 8
ret void
}
define void @fptosi_double_i64(double %a) nounwind ssp {
entry:
; ELF64: fptosi_double_i64
; ELF64LE: fptosi_double_i64
; PPC970: fptosi_double_i64
%b.addr = alloca i64, align 8
%conv = fptosi double %a to i64
; ELF64: fctidz
; ELF64: stfd
; ELF64: ld
; ELF64LE: fctidz
; ELF64LE: stfd
; ELF64LE: ld
; PPC970: fctidz
; PPC970: stfd
; PPC970: ld
store i64 %conv, i64* %b.addr, align 8
ret void
}
; Test fptoui
define void @fptoui_float_i32(float %a) nounwind ssp {
entry:
; ELF64: fptoui_float_i32
; ELF64LE: fptoui_float_i32
; PPC970: fptoui_float_i32
%b.addr = alloca i32, align 4
%conv = fptoui float %a to i32
; ELF64: fctiwuz
; ELF64: stfd
; ELF64: lwz
; ELF64LE: fctiwuz
; ELF64LE: stfd
; ELF64LE: lwz
; PPC970: fctidz
; PPC970: stfd
; PPC970: lwz
store i32 %conv, i32* %b.addr, align 4
ret void
}
define void @fptoui_float_i64(float %a) nounwind ssp {
entry:
; ELF64: fptoui_float_i64
; ELF64LE: fptoui_float_i64
; PPC970: fptoui_float_i64
%b.addr = alloca i64, align 4
%conv = fptoui float %a to i64
; ELF64: fctiduz
; ELF64: stfd
; ELF64: ld
; ELF64LE: fctiduz
; ELF64LE: stfd
; ELF64LE: ld
; PPC970-NOT: fctiduz
store i64 %conv, i64* %b.addr, align 4
ret void
}
define void @fptoui_double_i32(double %a) nounwind ssp {
entry:
; ELF64: fptoui_double_i32
; ELF64LE: fptoui_double_i32
; PPC970: fptoui_double_i32
%b.addr = alloca i32, align 8
%conv = fptoui double %a to i32
; ELF64: fctiwuz
; ELF64: stfd
; ELF64: lwz
; ELF64LE: fctiwuz
; ELF64LE: stfd
; ELF64LE: lwz
; PPC970: fctidz
; PPC970: stfd
; PPC970: lwz
store i32 %conv, i32* %b.addr, align 8
ret void
}
define void @fptoui_double_i64(double %a) nounwind ssp {
entry:
; ELF64: fptoui_double_i64
; ELF64LE: fptoui_double_i64
; PPC970: fptoui_double_i64
%b.addr = alloca i64, align 8
%conv = fptoui double %a to i64
; ELF64: fctiduz
; ELF64: stfd
; ELF64: ld
; ELF64LE: fctiduz
; ELF64LE: stfd
; ELF64LE: ld
; PPC970-NOT: fctiduz
store i64 %conv, i64* %b.addr, align 8
ret void
}