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llvm-6502/test/CodeGen/Mips/fastcc.ll
Daniel Sanders fe2b8b1960 [mips] Promote i32 arguments to i64 for the N32/N64 ABI and fix <64-bit structs... 
Summary:
... and after all that refactoring, it's possible to distinguish softfloat
floating point values from integers so this patch no longer breaks softfloat to
do it.

Remove direct handling of i32's in the N32/N64 ABI by promoting them to
i64. This more closely reflects the ABI documentation and also fixes
problems with stack arguments on big-endian targets.

We now rely on signext/zeroext annotations (already generated by clang) and
the Assert[SZ]ext nodes to avoid the introduction of unnecessary sign/zero
extends.

It was not possible to convert three tests to use signext/zeroext. These tests
are bswap.ll, ctlz-v.ll, ctlz-v.ll. It's not possible to put signext on a
vector type so we just accept the sign extends here for now. These tests don't
pass the vectors the same way clang does (clang puts multiple elements in the
same argument, these map 1 element to 1 argument) so we don't need to worry too
much about it.

With this patch, all known N32/N64 bugs should be fixed and we now pass the
first 10,000 tests generated by ABITest.py.

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D6117


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221534 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-07 16:54:21 +00:00

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; RUN: llc < %s -march=mipsel | FileCheck %s
; RUN: llc < %s -mtriple=mipsel-none-nacl-gnu \
; RUN: | FileCheck %s -check-prefix=CHECK-NACL
; RUN: llc < %s -march=mipsel -mcpu=mips32 -mattr=+nooddspreg | FileCheck %s -check-prefix=NOODDSPREG
; RUN: llc < %s -march=mipsel -mcpu=mips32r2 -mattr=+fp64,+nooddspreg | FileCheck %s -check-prefix=FP64-NOODDSPREG
@gi0 = external global i32
@gi1 = external global i32
@gi2 = external global i32
@gi3 = external global i32
@gi4 = external global i32
@gi5 = external global i32
@gi6 = external global i32
@gi7 = external global i32
@gi8 = external global i32
@gi9 = external global i32
@gi10 = external global i32
@gi11 = external global i32
@gi12 = external global i32
@gi13 = external global i32
@gi14 = external global i32
@gi15 = external global i32
@gi16 = external global i32
@gfa0 = external global float
@gfa1 = external global float
@gfa2 = external global float
@gfa3 = external global float
@gfa4 = external global float
@gfa5 = external global float
@gfa6 = external global float
@gfa7 = external global float
@gfa8 = external global float
@gfa9 = external global float
@gfa10 = external global float
@gfa11 = external global float
@gfa12 = external global float
@gfa13 = external global float
@gfa14 = external global float
@gfa15 = external global float
@gfa16 = external global float
@gfa17 = external global float
@gfa18 = external global float
@gfa19 = external global float
@gfa20 = external global float
@gf0 = external global float
@gf1 = external global float
@gf2 = external global float
@gf3 = external global float
@gf4 = external global float
@gf5 = external global float
@gf6 = external global float
@gf7 = external global float
@gf8 = external global float
@gf9 = external global float
@gf10 = external global float
@gf11 = external global float
@gf12 = external global float
@gf13 = external global float
@gf14 = external global float
@gf15 = external global float
@gf16 = external global float
@gf17 = external global float
@gf18 = external global float
@gf19 = external global float
@gf20 = external global float
@g0 = external global i32
@g1 = external global i32
@g2 = external global i32
@g3 = external global i32
@g4 = external global i32
@g5 = external global i32
@g6 = external global i32
@g7 = external global i32
@g8 = external global i32
@g9 = external global i32
@g10 = external global i32
@g11 = external global i32
@g12 = external global i32
@g13 = external global i32
@g14 = external global i32
@g15 = external global i32
@g16 = external global i32
@fa = common global [11 x float] zeroinitializer, align 4
@da = common global [11 x double] zeroinitializer, align 8
define void @caller0() nounwind {
entry:
; CHECK: caller0
; CHECK: lw $3
; CHECK: lw $24
; CHECK: lw $15
; CHECK: lw $14
; CHECK: lw $13
; CHECK: lw $12
; CHECK: lw $11
; CHECK: lw $10
; CHECK: lw $9
; CHECK: lw $8
; CHECK: lw $7
; CHECK: lw $6
; CHECK: lw $5
; CHECK: lw $4
; t6, t7 and t8 are reserved in NaCl and cannot be used for fastcc.
; CHECK-NACL-NOT: lw $14
; CHECK-NACL-NOT: lw $15
; CHECK-NACL-NOT: lw $24
%0 = load i32* @gi0, align 4
%1 = load i32* @gi1, align 4
%2 = load i32* @gi2, align 4
%3 = load i32* @gi3, align 4
%4 = load i32* @gi4, align 4
%5 = load i32* @gi5, align 4
%6 = load i32* @gi6, align 4
%7 = load i32* @gi7, align 4
%8 = load i32* @gi8, align 4
%9 = load i32* @gi9, align 4
%10 = load i32* @gi10, align 4
%11 = load i32* @gi11, align 4
%12 = load i32* @gi12, align 4
%13 = load i32* @gi13, align 4
%14 = load i32* @gi14, align 4
%15 = load i32* @gi15, align 4
%16 = load i32* @gi16, align 4
tail call fastcc void @callee0(i32 %0, i32 %1, i32 %2, i32 %3, i32 %4, i32 %5, i32 %6, i32 %7, i32 %8, i32 %9, i32 %10, i32 %11, i32 %12, i32 %13, i32 %14, i32 %15, i32 %16)
ret void
}
define internal fastcc void @callee0(i32 %a0, i32 %a1, i32 %a2, i32 %a3, i32 %a4, i32 %a5, i32 %a6, i32 %a7, i32 %a8, i32 %a9, i32 %a10, i32 %a11, i32 %a12, i32 %a13, i32 %a14, i32 %a15, i32 %a16) nounwind noinline {
entry:
; CHECK: callee0
; CHECK: sw $4
; CHECK: sw $5
; CHECK: sw $6
; CHECK: sw $7
; CHECK: sw $8
; CHECK: sw $9
; CHECK: sw $10
; CHECK: sw $11
; CHECK: sw $12
; CHECK: sw $13
; CHECK: sw $14
; CHECK: sw $15
; CHECK: sw $24
; CHECK: sw $3
; t6, t7 and t8 are reserved in NaCl and cannot be used for fastcc.
; CHECK-NACL-NOT: sw $14
; CHECK-NACL-NOT: sw $15
; CHECK-NACL-NOT: sw $24
store i32 %a0, i32* @g0, align 4
store i32 %a1, i32* @g1, align 4
store i32 %a2, i32* @g2, align 4
store i32 %a3, i32* @g3, align 4
store i32 %a4, i32* @g4, align 4
store i32 %a5, i32* @g5, align 4
store i32 %a6, i32* @g6, align 4
store i32 %a7, i32* @g7, align 4
store i32 %a8, i32* @g8, align 4
store i32 %a9, i32* @g9, align 4
store i32 %a10, i32* @g10, align 4
store i32 %a11, i32* @g11, align 4
store i32 %a12, i32* @g12, align 4
store i32 %a13, i32* @g13, align 4
store i32 %a14, i32* @g14, align 4
store i32 %a15, i32* @g15, align 4
store i32 %a16, i32* @g16, align 4
ret void
}
define void @caller1(float %a0, float %a1, float %a2, float %a3, float %a4, float %a5, float %a6, float %a7, float %a8, float %a9, float %a10, float %a11, float %a12, float %a13, float %a14, float %a15, float %a16, float %a17, float %a18, float %a19, float %a20) nounwind {
entry:
; CHECK: caller1
; CHECK: lwc1 $f19
; CHECK: lwc1 $f18
; CHECK: lwc1 $f17
; CHECK: lwc1 $f16
; CHECK: lwc1 $f15
; CHECK: lwc1 $f14
; CHECK: lwc1 $f13
; CHECK: lwc1 $f12
; CHECK: lwc1 $f11
; CHECK: lwc1 $f10
; CHECK: lwc1 $f9
; CHECK: lwc1 $f8
; CHECK: lwc1 $f7
; CHECK: lwc1 $f6
; CHECK: lwc1 $f5
; CHECK: lwc1 $f4
; CHECK: lwc1 $f3
; CHECK: lwc1 $f2
; CHECK: lwc1 $f1
; CHECK: lwc1 $f0
%0 = load float* @gfa0, align 4
%1 = load float* @gfa1, align 4
%2 = load float* @gfa2, align 4
%3 = load float* @gfa3, align 4
%4 = load float* @gfa4, align 4
%5 = load float* @gfa5, align 4
%6 = load float* @gfa6, align 4
%7 = load float* @gfa7, align 4
%8 = load float* @gfa8, align 4
%9 = load float* @gfa9, align 4
%10 = load float* @gfa10, align 4
%11 = load float* @gfa11, align 4
%12 = load float* @gfa12, align 4
%13 = load float* @gfa13, align 4
%14 = load float* @gfa14, align 4
%15 = load float* @gfa15, align 4
%16 = load float* @gfa16, align 4
%17 = load float* @gfa17, align 4
%18 = load float* @gfa18, align 4
%19 = load float* @gfa19, align 4
%20 = load float* @gfa20, align 4
tail call fastcc void @callee1(float %0, float %1, float %2, float %3, float %4, float %5, float %6, float %7, float %8, float %9, float %10, float %11, float %12, float %13, float %14, float %15, float %16, float %17, float %18, float %19, float %20)
ret void
}
define internal fastcc void @callee1(float %a0, float %a1, float %a2, float %a3, float %a4, float %a5, float %a6, float %a7, float %a8, float %a9, float %a10, float %a11, float %a12, float %a13, float %a14, float %a15, float %a16, float %a17, float %a18, float %a19, float %a20) nounwind noinline {
entry:
; CHECK: callee1
; CHECK: swc1 $f0
; CHECK: swc1 $f1
; CHECK: swc1 $f2
; CHECK: swc1 $f3
; CHECK: swc1 $f4
; CHECK: swc1 $f5
; CHECK: swc1 $f6
; CHECK: swc1 $f7
; CHECK: swc1 $f8
; CHECK: swc1 $f9
; CHECK: swc1 $f10
; CHECK: swc1 $f11
; CHECK: swc1 $f12
; CHECK: swc1 $f13
; CHECK: swc1 $f14
; CHECK: swc1 $f15
; CHECK: swc1 $f16
; CHECK: swc1 $f17
; CHECK: swc1 $f18
; CHECK: swc1 $f19
store float %a0, float* @gf0, align 4
store float %a1, float* @gf1, align 4
store float %a2, float* @gf2, align 4
store float %a3, float* @gf3, align 4
store float %a4, float* @gf4, align 4
store float %a5, float* @gf5, align 4
store float %a6, float* @gf6, align 4
store float %a7, float* @gf7, align 4
store float %a8, float* @gf8, align 4
store float %a9, float* @gf9, align 4
store float %a10, float* @gf10, align 4
store float %a11, float* @gf11, align 4
store float %a12, float* @gf12, align 4
store float %a13, float* @gf13, align 4
store float %a14, float* @gf14, align 4
store float %a15, float* @gf15, align 4
store float %a16, float* @gf16, align 4
store float %a17, float* @gf17, align 4
store float %a18, float* @gf18, align 4
store float %a19, float* @gf19, align 4
store float %a20, float* @gf20, align 4
ret void
}
define void @caller2() {
entry:
; NOODDSPREG-LABEL: caller2:
; Check that first 10 arguments are passed in even float registers
; f0, f2, ... , f18. Check that 11th argument is passed on stack.
; NOODDSPREG-DAG: lw $[[R0:[0-9]+]], %got(fa)(${{[0-9]+|gp}})
; NOODDSPREG-DAG: lwc1 $f0, 0($[[R0]])
; NOODDSPREG-DAG: lwc1 $f2, 4($[[R0]])
; NOODDSPREG-DAG: lwc1 $f4, 8($[[R0]])
; NOODDSPREG-DAG: lwc1 $f6, 12($[[R0]])
; NOODDSPREG-DAG: lwc1 $f8, 16($[[R0]])
; NOODDSPREG-DAG: lwc1 $f10, 20($[[R0]])
; NOODDSPREG-DAG: lwc1 $f12, 24($[[R0]])
; NOODDSPREG-DAG: lwc1 $f14, 28($[[R0]])
; NOODDSPREG-DAG: lwc1 $f16, 32($[[R0]])
; NOODDSPREG-DAG: lwc1 $f18, 36($[[R0]])
; NOODDSPREG-DAG: lwc1 $[[F0:f[0-9]*[02468]]], 40($[[R0]])
; NOODDSPREG-DAG: swc1 $[[F0]], 0($sp)
%0 = load float* getelementptr ([11 x float]* @fa, i32 0, i32 0), align 4
%1 = load float* getelementptr ([11 x float]* @fa, i32 0, i32 1), align 4
%2 = load float* getelementptr ([11 x float]* @fa, i32 0, i32 2), align 4
%3 = load float* getelementptr ([11 x float]* @fa, i32 0, i32 3), align 4
%4 = load float* getelementptr ([11 x float]* @fa, i32 0, i32 4), align 4
%5 = load float* getelementptr ([11 x float]* @fa, i32 0, i32 5), align 4
%6 = load float* getelementptr ([11 x float]* @fa, i32 0, i32 6), align 4
%7 = load float* getelementptr ([11 x float]* @fa, i32 0, i32 7), align 4
%8 = load float* getelementptr ([11 x float]* @fa, i32 0, i32 8), align 4
%9 = load float* getelementptr ([11 x float]* @fa, i32 0, i32 9), align 4
%10 = load float* getelementptr ([11 x float]* @fa, i32 0, i32 10), align 4
tail call fastcc void @callee2(float %0, float %1, float %2, float %3,
float %4, float %5, float %6, float %7,
float %8, float %9, float %10)
ret void
}
define fastcc void @callee2(float %a0, float %a1, float %a2, float %a3,
float %a4, float %a5, float %a6, float %a7,
float %a8, float %a9, float %a10) {
entry:
; NOODDSPREG-LABEL: callee2:
; NOODDSPREG: addiu $sp, $sp, -[[OFFSET:[0-9]+]]
; Check that first 10 arguments are received in even float registers
; f0, f2, ... , f18. Check that 11th argument is received on stack.
; NOODDSPREG-DAG: lw $[[R0:[0-9]+]], %got(fa)(${{[0-9]+|gp}})
; NOODDSPREG-DAG: swc1 $f0, 0($[[R0]])
; NOODDSPREG-DAG: swc1 $f2, 4($[[R0]])
; NOODDSPREG-DAG: swc1 $f4, 8($[[R0]])
; NOODDSPREG-DAG: swc1 $f6, 12($[[R0]])
; NOODDSPREG-DAG: swc1 $f8, 16($[[R0]])
; NOODDSPREG-DAG: swc1 $f10, 20($[[R0]])
; NOODDSPREG-DAG: swc1 $f12, 24($[[R0]])
; NOODDSPREG-DAG: swc1 $f14, 28($[[R0]])
; NOODDSPREG-DAG: swc1 $f16, 32($[[R0]])
; NOODDSPREG-DAG: swc1 $f18, 36($[[R0]])
; NOODDSPREG-DAG: lwc1 $[[F0:f[0-9]*[02468]]], [[OFFSET]]($sp)
; NOODDSPREG-DAG: swc1 $[[F0]], 40($[[R0]])
store float %a0, float* getelementptr ([11 x float]* @fa, i32 0, i32 0), align 4
store float %a1, float* getelementptr ([11 x float]* @fa, i32 0, i32 1), align 4
store float %a2, float* getelementptr ([11 x float]* @fa, i32 0, i32 2), align 4
store float %a3, float* getelementptr ([11 x float]* @fa, i32 0, i32 3), align 4
store float %a4, float* getelementptr ([11 x float]* @fa, i32 0, i32 4), align 4
store float %a5, float* getelementptr ([11 x float]* @fa, i32 0, i32 5), align 4
store float %a6, float* getelementptr ([11 x float]* @fa, i32 0, i32 6), align 4
store float %a7, float* getelementptr ([11 x float]* @fa, i32 0, i32 7), align 4
store float %a8, float* getelementptr ([11 x float]* @fa, i32 0, i32 8), align 4
store float %a9, float* getelementptr ([11 x float]* @fa, i32 0, i32 9), align 4
store float %a10, float* getelementptr ([11 x float]* @fa, i32 0, i32 10), align 4
ret void
}
define void @caller3() {
entry:
; FP64-NOODDSPREG-LABEL: caller3:
; Check that first 10 arguments are passed in even float registers
; f0, f2, ... , f18. Check that 11th argument is passed on stack.
; FP64-NOODDSPREG-DAG: lw $[[R0:[0-9]+]], %got(da)(${{[0-9]+|gp}})
; FP64-NOODDSPREG-DAG: ldc1 $f0, 0($[[R0]])
; FP64-NOODDSPREG-DAG: ldc1 $f2, 8($[[R0]])
; FP64-NOODDSPREG-DAG: ldc1 $f4, 16($[[R0]])
; FP64-NOODDSPREG-DAG: ldc1 $f6, 24($[[R0]])
; FP64-NOODDSPREG-DAG: ldc1 $f8, 32($[[R0]])
; FP64-NOODDSPREG-DAG: ldc1 $f10, 40($[[R0]])
; FP64-NOODDSPREG-DAG: ldc1 $f12, 48($[[R0]])
; FP64-NOODDSPREG-DAG: ldc1 $f14, 56($[[R0]])
; FP64-NOODDSPREG-DAG: ldc1 $f16, 64($[[R0]])
; FP64-NOODDSPREG-DAG: ldc1 $f18, 72($[[R0]])
; FP64-NOODDSPREG-DAG: ldc1 $[[F0:f[0-9]*[02468]]], 80($[[R0]])
; FP64-NOODDSPREG-DAG: sdc1 $[[F0]], 0($sp)
%0 = load double* getelementptr ([11 x double]* @da, i32 0, i32 0), align 8
%1 = load double* getelementptr ([11 x double]* @da, i32 0, i32 1), align 8
%2 = load double* getelementptr ([11 x double]* @da, i32 0, i32 2), align 8
%3 = load double* getelementptr ([11 x double]* @da, i32 0, i32 3), align 8
%4 = load double* getelementptr ([11 x double]* @da, i32 0, i32 4), align 8
%5 = load double* getelementptr ([11 x double]* @da, i32 0, i32 5), align 8
%6 = load double* getelementptr ([11 x double]* @da, i32 0, i32 6), align 8
%7 = load double* getelementptr ([11 x double]* @da, i32 0, i32 7), align 8
%8 = load double* getelementptr ([11 x double]* @da, i32 0, i32 8), align 8
%9 = load double* getelementptr ([11 x double]* @da, i32 0, i32 9), align 8
%10 = load double* getelementptr ([11 x double]* @da, i32 0, i32 10), align 8
tail call fastcc void @callee3(double %0, double %1, double %2, double %3,
double %4, double %5, double %6, double %7,
double %8, double %9, double %10)
ret void
}
define fastcc void @callee3(double %a0, double %a1, double %a2, double %a3,
double %a4, double %a5, double %a6, double %a7,
double %a8, double %a9, double %a10) {
entry:
; FP64-NOODDSPREG-LABEL: callee3:
; FP64-NOODDSPREG: addiu $sp, $sp, -[[OFFSET:[0-9]+]]
; Check that first 10 arguments are received in even float registers
; f0, f2, ... , f18. Check that 11th argument is received on stack.
; FP64-NOODDSPREG-DAG: lw $[[R0:[0-9]+]], %got(da)(${{[0-9]+|gp}})
; FP64-NOODDSPREG-DAG: sdc1 $f0, 0($[[R0]])
; FP64-NOODDSPREG-DAG: sdc1 $f2, 8($[[R0]])
; FP64-NOODDSPREG-DAG: sdc1 $f4, 16($[[R0]])
; FP64-NOODDSPREG-DAG: sdc1 $f6, 24($[[R0]])
; FP64-NOODDSPREG-DAG: sdc1 $f8, 32($[[R0]])
; FP64-NOODDSPREG-DAG: sdc1 $f10, 40($[[R0]])
; FP64-NOODDSPREG-DAG: sdc1 $f12, 48($[[R0]])
; FP64-NOODDSPREG-DAG: sdc1 $f14, 56($[[R0]])
; FP64-NOODDSPREG-DAG: sdc1 $f16, 64($[[R0]])
; FP64-NOODDSPREG-DAG: sdc1 $f18, 72($[[R0]])
; FP64-NOODDSPREG-DAG: ldc1 $[[F0:f[0-9]*[02468]]], [[OFFSET]]($sp)
; FP64-NOODDSPREG-DAG: sdc1 $[[F0]], 80($[[R0]])
store double %a0, double* getelementptr ([11 x double]* @da, i32 0, i32 0), align 8
store double %a1, double* getelementptr ([11 x double]* @da, i32 0, i32 1), align 8
store double %a2, double* getelementptr ([11 x double]* @da, i32 0, i32 2), align 8
store double %a3, double* getelementptr ([11 x double]* @da, i32 0, i32 3), align 8
store double %a4, double* getelementptr ([11 x double]* @da, i32 0, i32 4), align 8
store double %a5, double* getelementptr ([11 x double]* @da, i32 0, i32 5), align 8
store double %a6, double* getelementptr ([11 x double]* @da, i32 0, i32 6), align 8
store double %a7, double* getelementptr ([11 x double]* @da, i32 0, i32 7), align 8
store double %a8, double* getelementptr ([11 x double]* @da, i32 0, i32 8), align 8
store double %a9, double* getelementptr ([11 x double]* @da, i32 0, i32 9), align 8
store double %a10, double* getelementptr ([11 x double]* @da, i32 0, i32 10), align 8
ret void
}
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