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[Mips] Adjust float ABI settings in case of MIPS16 mode.

Browse Source 
Hard float for mips16 means essentially to compile as soft float but to
use a runtime library for soft float that is written with native mips32
floating point instructions (those runtime routines run in mips32 hard
float mode).

The patch reviewed by Reed Kotler.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195123 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Simon Atanasyan 2013-11-19 12:20:17 +00:00
parent 4d06b6d28f
commit c5e99819f4
24 changed files with 44 additions and 34 deletions
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10
lib/Target/Mips/MipsSubtarget.cpp
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@ -81,6 +81,16 @@ MipsSubtarget::MipsSubtarget(const std::string &TT, const std::string &CPU,
// Parse features string.
ParseSubtargetFeatures(CPUName, FS);
if (InMips16Mode && !TM->Options.UseSoftFloat) {
// Hard float for mips16 means essentially to compile as soft float
// but to use a runtime library for soft float that is written with
// native mips32 floating point instructions (those runtime routines
// run in mips32 hard float mode).
TM->Options.UseSoftFloat = true;
TM->Options.FloatABIType = FloatABI::Soft;
InMips16HardFloat = true;
}
PreviousInMips16Mode = InMips16Mode;
// Initialize scheduling itinerary for the specified CPU.

6
test/CodeGen/Mips/2008-07-16-SignExtInReg.ll
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@ -1,6 +1,6 @@
; RUN: llc < %s -march=mips -mcpu=mips32r2 | FileCheck %s
; RUN: llc < %s -march=mips64 -mcpu=mips64r2 | FileCheck %s
; RUN: llc -mtriple=mipsel-linux-gnu -march=mipsel -mcpu=mips32r2 -mattr=+mips16 -soft-float -mips16-hard-float < %s | FileCheck %s
; RUN: llc < %s -march=mips -mcpu=mips32r2 | FileCheck %s
; RUN: llc < %s -march=mips64 -mcpu=mips64r2 | FileCheck %s
; RUN: llc -mtriple=mipsel-linux-gnu -march=mipsel -mcpu=mips32r2 -mattr=+mips16 < %s | FileCheck %s
define signext i8 @A(i8 %e.0, i8 signext %sum) nounwind {
entry:

2
test/CodeGen/Mips/addi.ll
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@ -1,4 +1,4 @@
; RUN: llc -march=mipsel -mcpu=mips16 -mips16-hard-float -soft-float -relocation-model=static < %s | FileCheck %s -check-prefix=16
; RUN: llc -march=mipsel -mcpu=mips16 -relocation-model=static < %s | FileCheck %s -check-prefix=16
@i = global i32 6, align 4
@j = global i32 12, align 4

4
test/CodeGen/Mips/blockaddr.ll
View File

@ -4,8 +4,8 @@
; RUN: llc -march=mips64el -mcpu=mips64r2 -mattr=n32 -relocation-model=static < %s | FileCheck %s -check-prefix=STATIC-N32
; RUN: llc -march=mips64el -mcpu=mips64r2 -mattr=n64 -relocation-model=pic < %s | FileCheck %s -check-prefix=PIC-N64
; RUN: llc -march=mips64el -mcpu=mips64r2 -mattr=n64 -relocation-model=static < %s | FileCheck %s -check-prefix=STATIC-N64
; RUN: llc -mtriple=mipsel-linux-gnu -march=mipsel -mcpu=mips32 -mattr=+mips16 -soft-float -mips16-hard-float -relocation-model=static < %s | FileCheck %s -check-prefix=STATIC-MIPS16-1
; RUN: llc -mtriple=mipsel-linux-gnu -march=mipsel -mcpu=mips32 -mattr=+mips16 -soft-float -mips16-hard-float -relocation-model=static < %s | FileCheck %s -check-prefix=STATIC-MIPS16-2
; RUN: llc -mtriple=mipsel-linux-gnu -march=mipsel -mcpu=mips32 -mattr=+mips16 -relocation-model=static < %s | FileCheck %s -check-prefix=STATIC-MIPS16-1
; RUN: llc -mtriple=mipsel-linux-gnu -march=mipsel -mcpu=mips32 -mattr=+mips16 -relocation-model=static < %s | FileCheck %s -check-prefix=STATIC-MIPS16-2
@reg = common global i8* null, align 4

2
test/CodeGen/Mips/bswap.ll
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@ -1,6 +1,6 @@
; RUN: llc < %s -march=mipsel -mcpu=mips32r2 | FileCheck %s -check-prefix=MIPS32
; RUN: llc < %s -march=mips64el -mcpu=mips64r2 | FileCheck %s -check-prefix=MIPS64
; RUN: llc < %s -mtriple=mipsel-linux-gnu -march=mipsel -mcpu=mips32r2 -mattr=+mips16 -soft-float -mips16-hard-float | FileCheck %s -check-prefix=mips16
; RUN: llc < %s -mtriple=mipsel-linux-gnu -march=mipsel -mcpu=mips32r2 -mattr=+mips16 | FileCheck %s -check-prefix=mips16
define i32 @bswap32(i32 %x) nounwind readnone {
entry:

2
test/CodeGen/Mips/ctlz.ll
View File

@ -1,4 +1,4 @@
; RUN: llc -mtriple=mipsel-linux-gnu -march=mipsel -mcpu=mips32 -mattr=+mips16 -soft-float -mips16-hard-float -relocation-model=static < %s | FileCheck %s -check-prefix=static
; RUN: llc -mtriple=mipsel-linux-gnu -march=mipsel -mcpu=mips32 -mattr=+mips16 -relocation-model=static < %s | FileCheck %s -check-prefix=static
@x = global i32 28912, align 4
@y = common global i32 0, align 4

2
test/CodeGen/Mips/f16abs.ll
View File

@ -1,4 +1,4 @@
; RUN: llc -mtriple=mipsel-linux-gnu -march=mipsel -mcpu=mips16 -soft-float -mips16-hard-float -relocation-model=static < %s | FileCheck %s -check-prefix=static
; RUN: llc -mtriple=mipsel-linux-gnu -march=mipsel -mcpu=mips16 -relocation-model=static < %s | FileCheck %s -check-prefix=static
@y = global double -1.450000e+00, align 8
@x = common global double 0.000000e+00, align 8

4
test/CodeGen/Mips/fixdfsf.ll
View File

@ -1,5 +1,5 @@
; RUN: llc -mtriple=mipsel-linux-gnu -march=mipsel -mcpu=mips16 -soft-float -mips16-hard-float -relocation-model=pic < %s | FileCheck %s -check-prefix=pic1
; RUN: llc -mtriple=mipsel-linux-gnu -march=mipsel -mcpu=mips16 -soft-float -mips16-hard-float -relocation-model=pic < %s | FileCheck %s -check-prefix=pic2
; RUN: llc -mtriple=mipsel-linux-gnu -march=mipsel -mcpu=mips16 -relocation-model=pic < %s | FileCheck %s -check-prefix=pic1
; RUN: llc -mtriple=mipsel-linux-gnu -march=mipsel -mcpu=mips16 -relocation-model=pic < %s | FileCheck %s -check-prefix=pic2
@x = common global double 0.000000e+00, align 8
@y = common global i32 0, align 4

4
test/CodeGen/Mips/fp16instrinsmc.ll
View File

@ -1,5 +1,5 @@
; RUN: llc -mtriple=mipsel-linux-gnu -march=mipsel -mcpu=mips16 -soft-float -mips16-hard-float -relocation-model=pic < %s | FileCheck %s -check-prefix=pic
; RUN: llc -mtriple=mipsel-linux-gnu -march=mipsel -mcpu=mips16 -soft-float -mips16-hard-float -relocation-model=static -mips32-function-mask=1010111 -mips-os16 < %s | FileCheck %s -check-prefix=fmask
; RUN: llc -mtriple=mipsel-linux-gnu -march=mipsel -mcpu=mips16 -relocation-model=pic < %s | FileCheck %s -check-prefix=pic
; RUN: llc -mtriple=mipsel-linux-gnu -march=mipsel -mcpu=mips16 -relocation-model=static -mips32-function-mask=1010111 -mips-os16 < %s | FileCheck %s -check-prefix=fmask
@x = global float 1.500000e+00, align 4
@xn = global float -1.900000e+01, align 4

6
test/CodeGen/Mips/fp16mix.ll
View File

@ -1,8 +1,8 @@
; RUN: llc -mtriple=mipsel-linux-gnu -march=mipsel -mcpu=mips16 -soft-float -mips16-hard-float -relocation-model=static -mips32-function-mask=10 -mips-os16 < %s | FileCheck %s -check-prefix=fmask1
; RUN: llc -mtriple=mipsel-linux-gnu -march=mipsel -mcpu=mips16 -relocation-model=static -mips32-function-mask=10 -mips-os16 < %s | FileCheck %s -check-prefix=fmask1
; RUN: llc -mtriple=mipsel-linux-gnu -march=mipsel -mcpu=mips16 -soft-float -mips16-hard-float -relocation-model=static -mips32-function-mask=01 -mips-os16 < %s | FileCheck %s -check-prefix=fmask2
; RUN: llc -mtriple=mipsel-linux-gnu -march=mipsel -mcpu=mips16 -relocation-model=static -mips32-function-mask=01 -mips-os16 < %s | FileCheck %s -check-prefix=fmask2
; RUN: llc -mtriple=mipsel-linux-gnu -march=mipsel -mcpu=mips16 -soft-float -mips16-hard-float -relocation-model=static -mips32-function-mask=10. -mips-os16 < %s | FileCheck %s -check-prefix=fmask1nr
; RUN: llc -mtriple=mipsel-linux-gnu -march=mipsel -mcpu=mips16 -relocation-model=static -mips32-function-mask=10. -mips-os16 < %s | FileCheck %s -check-prefix=fmask1nr
; Function Attrs: nounwind optsize readnone
define void @foo1() {

2
test/CodeGen/Mips/fp16static.ll
View File

@ -1,4 +1,4 @@
; RUN: llc -march=mipsel -mcpu=mips16 -mips16-hard-float -soft-float -relocation-model=static < %s | FileCheck %s -check-prefix=CHECK-STATIC16
; RUN: llc -march=mipsel -mcpu=mips16 -relocation-model=static < %s | FileCheck %s -check-prefix=CHECK-STATIC16
@x = common global float 0.000000e+00, align 4

2
test/CodeGen/Mips/fptr2.ll
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@ -1,4 +1,4 @@
; RUN: llc -mtriple=mipsel-linux-gnu -march=mipsel -mcpu=mips16 -soft-float -mips16-hard-float -relocation-model=static < %s | FileCheck %s -check-prefix=static16
; RUN: llc -mtriple=mipsel-linux-gnu -march=mipsel -mcpu=mips16 -relocation-model=static < %s | FileCheck %s -check-prefix=static16
; Function Attrs: nounwind
define double @my_mul(double %a, double %b) #0 {

4
test/CodeGen/Mips/hf16_1.ll
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@ -1,5 +1,5 @@
; RUN: llc -march=mipsel -mcpu=mips16 -relocation-model=pic -soft-float -mips16-hard-float -O3 < %s | FileCheck %s -check-prefix=1
; RUN: llc -march=mipsel -mcpu=mips16 -relocation-model=pic -soft-float -mips16-hard-float -O3 < %s | FileCheck %s -check-prefix=2
; RUN: llc -march=mipsel -mcpu=mips16 -relocation-model=pic -O3 < %s | FileCheck %s -check-prefix=1
; RUN: llc -march=mipsel -mcpu=mips16 -relocation-model=pic -O3 < %s | FileCheck %s -check-prefix=2
@x = common global float 0.000000e+00, align 4

2
test/CodeGen/Mips/hf16call32.ll
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@ -1,4 +1,4 @@
; RUN: llc -mtriple=mipsel-linux-gnu -march=mipsel -mcpu=mips16 -soft-float -mips16-hard-float -relocation-model=static < %s | FileCheck %s -check-prefix=stel
; RUN: llc -mtriple=mipsel-linux-gnu -march=mipsel -mcpu=mips16 -relocation-model=static < %s | FileCheck %s -check-prefix=stel
@x = common global float 0.000000e+00, align 4
@y = common global float 0.000000e+00, align 4

2
test/CodeGen/Mips/hf16call32_body.ll
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@ -1,4 +1,4 @@
; RUN: llc -mtriple=mipsel-linux-gnu -march=mipsel -mcpu=mips16 -soft-float -mips16-hard-float -relocation-model=static < %s | FileCheck %s -check-prefix=stel
; RUN: llc -mtriple=mipsel-linux-gnu -march=mipsel -mcpu=mips16 -relocation-model=static < %s | FileCheck %s -check-prefix=stel
@x = external global float
@xd = external global double

2
test/CodeGen/Mips/hf1_body.ll
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@ -1,4 +1,4 @@
; RUN: llc -mtriple=mipsel-linux-gnu -march=mipsel -mcpu=mips16 -relocation-model=pic -soft-float -mips16-hard-float < %s | FileCheck %s -check-prefix=picfp16
; RUN: llc -mtriple=mipsel-linux-gnu -march=mipsel -mcpu=mips16 -relocation-model=pic < %s | FileCheck %s -check-prefix=picfp16
@x = external global float

2
test/CodeGen/Mips/hfptrcall.ll
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@ -1,4 +1,4 @@
; RUN: llc -mtriple=mipsel-linux-gnu -march=mipsel -mcpu=mips16 -soft-float -mips16-hard-float -relocation-model=pic < %s | FileCheck %s -check-prefix=picel
; RUN: llc -mtriple=mipsel-linux-gnu -march=mipsel -mcpu=mips16 -relocation-model=pic < %s | FileCheck %s -check-prefix=picel
@ptrsv = global float ()* @sv, align 4
@ptrdv = global double ()* @dv, align 4

2
test/CodeGen/Mips/largefr1.ll
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@ -1,4 +1,4 @@
; RUN: llc -march=mipsel -mcpu=mips16 -mips16-hard-float -soft-float -relocation-model=static < %s | FileCheck %s -check-prefix=1
; RUN: llc -march=mipsel -mcpu=mips16 -relocation-model=static < %s | FileCheck %s -check-prefix=1
@i = common global i32 0, align 4

8
test/CodeGen/Mips/mips16_fpret.ll
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@ -1,7 +1,7 @@
; RUN: llc -mtriple=mipsel-linux-gnu -march=mipsel -mcpu=mips16 -soft-float -mips16-hard-float -relocation-model=static < %s | FileCheck %s -check-prefix=1
; RUN: llc -mtriple=mipsel-linux-gnu -march=mipsel -mcpu=mips16 -soft-float -mips16-hard-float -relocation-model=static < %s | FileCheck %s -check-prefix=2
; RUN: llc -mtriple=mipsel-linux-gnu -march=mipsel -mcpu=mips16 -soft-float -mips16-hard-float -relocation-model=static < %s | FileCheck %s -check-prefix=3
; RUN: llc -mtriple=mipsel-linux-gnu -march=mipsel -mcpu=mips16 -soft-float -mips16-hard-float -relocation-model=static < %s | FileCheck %s -check-prefix=4
; RUN: llc -mtriple=mipsel-linux-gnu -march=mipsel -mcpu=mips16 -relocation-model=static < %s | FileCheck %s -check-prefix=1
; RUN: llc -mtriple=mipsel-linux-gnu -march=mipsel -mcpu=mips16 -relocation-model=static < %s | FileCheck %s -check-prefix=2
; RUN: llc -mtriple=mipsel-linux-gnu -march=mipsel -mcpu=mips16 -relocation-model=static < %s | FileCheck %s -check-prefix=3
; RUN: llc -mtriple=mipsel-linux-gnu -march=mipsel -mcpu=mips16 -relocation-model=static < %s | FileCheck %s -check-prefix=4
@x = global float 0x41F487E980000000, align 4

2
test/CodeGen/Mips/mips16fpe.ll
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@ -1,4 +1,4 @@
; RUN: llc -march=mipsel -mcpu=mips16 -relocation-model=pic -O3 -soft-float -mips16-hard-float < %s | FileCheck %s -check-prefix=16hf
; RUN: llc -march=mipsel -mcpu=mips16 -relocation-model=pic -O3 < %s | FileCheck %s -check-prefix=16hf
@x = global float 5.000000e+00, align 4
@y = global float 1.500000e+01, align 4

2
test/CodeGen/Mips/nomips16.ll
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@ -1,4 +1,4 @@
; RUN: llc -mtriple=mipsel-linux-gnu -march=mipsel -mcpu=mips16 -mips16-hard-float -soft-float -relocation-model=static < %s | FileCheck %s
; RUN: llc -mtriple=mipsel-linux-gnu -march=mipsel -mcpu=mips16 -relocation-model=static < %s | FileCheck %s
@x = global float 0.000000e+00, align 4
@.str = private unnamed_addr constant [20 x i8] c"in main: mips16 %f\0A\00", align 1

2
test/CodeGen/Mips/powif64_16.ll
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@ -1,4 +1,4 @@
; RUN: llc -mtriple=mipsel-linux-gnu -march=mipsel -mcpu=mips16 -mips16-hard-float -soft-float -relocation-model=static < %s | FileCheck %s
; RUN: llc -mtriple=mipsel-linux-gnu -march=mipsel -mcpu=mips16 -relocation-model=static < %s | FileCheck %s
declare float @llvm.powi.f32(float %Val, i32 %power)
declare double @llvm.powi.f64(double %Val, i32 %power)

2
test/CodeGen/Mips/rotate.ll
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@ -1,5 +1,5 @@
; RUN: llc -march=mips -mcpu=mips32r2 < %s | FileCheck %s
; RUN: llc -mtriple=mipsel-linux-gnu -march=mipsel -mcpu=mips32r2 -mattr=+mips16 -soft-float -mips16-hard-float < %s | FileCheck %s -check-prefix=mips16
; RUN: llc -mtriple=mipsel-linux-gnu -march=mipsel -mcpu=mips32r2 -mattr=+mips16 < %s | FileCheck %s -check-prefix=mips16
; CHECK: rotrv $2, $4
; mips16: .ent rot0

2
test/CodeGen/Mips/trap1.ll
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@ -1,4 +1,4 @@
; RUN: llc -mtriple=mipsel-linux-gnu -march=mipsel -mcpu=mips16 -soft-float -mips16-hard-float -relocation-model=pic < %s | FileCheck %s -check-prefix=pic
; RUN: llc -mtriple=mipsel-linux-gnu -march=mipsel -mcpu=mips16 -relocation-model=pic < %s | FileCheck %s -check-prefix=pic
declare void @llvm.trap()