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4ad8f46d36
Summary: This patch adds support for using the "interrupt" attribute on Mips for interrupt handling functions. At this time only mips32r2+ with the o32 ABI with the static relocation model is supported. Unsupported configurations will be rejected Patch by Simon Dardis (+ clang-format & some trivial changes to follow the LLVM coding standards by me). Reviewers: mpf, dsanders Subscribers: dsanders, vkalintiris, llvm-commits Differential Revision: http://reviews.llvm.org/D10768 llvm-svn: 251286
245 lines
6.6 KiB
LLVM
245 lines
6.6 KiB
LLVM
; RUN: llc -mcpu=mips32r2 -march=mipsel -relocation-model=static -o - %s | FileCheck %s
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define void @isr_sw0() #0 {
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; CHECK-LABEL: isr_sw0:
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; CHECK: mfc0 $27, $14, 0
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; CHECK: sw $27, [[R1:[0-9]+]]($sp)
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; CHECK: mfc0 $27, $12, 0
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; CHECK: sw $27, [[R2:[0-9]+]]($sp)
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; CHECK: ins $27, $zero, 8, 1
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; CHECK: ins $27, $zero, 1, 4
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; CHECK: ins $27, $zero, 29, 1
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; CHECK: mtc0 $27, $12, 0
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; Must save all registers
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; CHECK: sw $7, {{[0-9]+}}($sp)
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; CHECK: sw $6, {{[0-9]+}}($sp)
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; CHECK: sw $5, {{[0-9]+}}($sp)
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; CHECK: sw $4, {{[0-9]+}}($sp)
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; CHECK: sw $3, {{[0-9]+}}($sp)
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; CHECK: sw $2, {{[0-9]+}}($sp)
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; CHECK: sw $25, {{[0-9]+}}($sp)
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; CHECK: sw $24, {{[0-9]+}}($sp)
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; CHECK: sw $15, {{[0-9]+}}($sp)
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; CHECK: sw $14, {{[0-9]+}}($sp)
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; CHECK: sw $13, {{[0-9]+}}($sp)
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; CHECK: sw $12, {{[0-9]+}}($sp)
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; CHECK: sw $11, {{[0-9]+}}($sp)
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; CHECK: sw $10, {{[0-9]+}}($sp)
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; CHECK: sw $9, {{[0-9]+}}($sp)
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; CHECK: sw $8, {{[0-9]+}}($sp)
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; CHECK: sw $ra, [[R5:[0-9]+]]($sp)
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; CHECK: sw $gp, {{[0-9]+}}($sp)
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; CHECK: sw $1, {{[0-9]+}}($sp)
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; CHECK: mflo $26
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; CHECK: sw $26, [[R3:[0-9]+]]($sp)
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; CHECK: mfhi $26
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; CHECK: sw $26, [[R4:[0-9]+]]($sp)
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call void bitcast (void (...)* @write to void ()*)()
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; CHECK: lw $26, [[R4:[0-9]+]]($sp)
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; CHECK: mthi $26
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; CHECK: lw $26, [[R3:[0-9]+]]($sp)
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; CHECK: mtlo $26
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; CHECK: lw $1, {{[0-9]+}}($sp)
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; CHECK: lw $gp, {{[0-9]+}}($sp)
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; CHECK: lw $ra, [[R5:[0-9]+]]($sp)
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; CHECK: lw $8, {{[0-9]+}}($sp)
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; CHECK: lw $9, {{[0-9]+}}($sp)
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; CHECK: lw $10, {{[0-9]+}}($sp)
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; CHECK: lw $11, {{[0-9]+}}($sp)
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; CHECK: lw $12, {{[0-9]+}}($sp)
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; CHECK: lw $13, {{[0-9]+}}($sp)
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; CHECK: lw $14, {{[0-9]+}}($sp)
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; CHECK: lw $15, {{[0-9]+}}($sp)
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; CHECK: lw $24, {{[0-9]+}}($sp)
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; CHECK: lw $25, {{[0-9]+}}($sp)
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; CHECK: lw $2, {{[0-9]+}}($sp)
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; CHECK: lw $3, {{[0-9]+}}($sp)
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; CHECK: lw $4, {{[0-9]+}}($sp)
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; CHECK: lw $5, {{[0-9]+}}($sp)
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; CHECK: lw $6, {{[0-9]+}}($sp)
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; CHECK: lw $7, {{[0-9]+}}($sp)
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; CHECK: di
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; CHECK: ehb
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; CHECK: lw $27, [[R2:[0-9]+]]($sp)
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; CHECK: mtc0 $27, $14, 0
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; CHECK: lw $27, [[R1:[0-9]+]]($sp)
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; CHECK: mtc0 $27, $12, 0
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; CHECK: eret
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ret void
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}
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declare void @write(...)
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define void @isr_sw1() #2 {
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; CHECK-LABEL: isr_sw1:
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; CHECK: mfc0 $27, $14, 0
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; CHECK: sw $27, {{[0-9]+}}($sp)
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; CHECK: mfc0 $27, $12, 0
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; CHECK: sw $27, {{[0-9]+}}($sp)
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; CHECK: ins $27, $zero, 8, 2
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; CHECK: ins $27, $zero, 1, 4
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; CHECK: ins $27, $zero, 29, 1
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; CHECK: mtc0 $27, $12, 0
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ret void
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; CHECK: di
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; CHECK: ehb
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; CHECK: lw $27, {{[0-9]+}}($sp)
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; CHECK: mtc0 $27, $14, 0
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; CHECK: lw $27, {{[0-9]+}}($sp)
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; CHECK: mtc0 $27, $12, 0
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; CHECK: eret
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}
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define void @isr_hw0() #3 {
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; CHECK-LABEL: isr_hw0:
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; CHECK: mfc0 $27, $14, 0
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; CHECK: sw $27, {{[0-9]+}}($sp)
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; CHECK: mfc0 $27, $12, 0
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; CHECK: sw $27, {{[0-9]+}}($sp)
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; CHECK: ins $27, $zero, 8, 3
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; CHECK: ins $27, $zero, 1, 4
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; CHECK: ins $27, $zero, 29, 1
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; CHECK: mtc0 $27, $12, 0
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ret void
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; CHECK: di
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; CHECK: ehb
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; CHECK: lw $27, {{[0-9]+}}($sp)
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; CHECK: mtc0 $27, $14, 0
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; CHECK: lw $27, {{[0-9]+}}($sp)
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; CHECK: mtc0 $27, $12, 0
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; CHECK: eret
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}
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define void @isr_hw1() #4 {
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; CHECK-LABEL: isr_hw1:
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; CHECK: mfc0 $27, $14, 0
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; CHECK: sw $27, {{[0-9]+}}($sp)
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; CHECK: mfc0 $27, $12, 0
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; CHECK: sw $27, {{[0-9]+}}($sp)
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; CHECK: ins $27, $zero, 8, 4
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; CHECK: ins $27, $zero, 1, 4
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; CHECK: ins $27, $zero, 29, 1
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; CHECK: mtc0 $27, $12, 0
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ret void
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; CHECK: di
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; CHECK: ehb
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; CHECK: lw $27, {{[0-9]+}}($sp)
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; CHECK: mtc0 $27, $14, 0
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; CHECK: lw $27, {{[0-9]+}}($sp)
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; CHECK: mtc0 $27, $12, 0
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; CHECK: eret
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}
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define void @isr_hw2() #5 {
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; CHECK-LABEL: isr_hw2:
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; CHECK: mfc0 $27, $14, 0
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; CHECK: sw $27, {{[0-9]+}}($sp)
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; CHECK: mfc0 $27, $12, 0
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; CHECK: sw $27, {{[0-9]+}}($sp)
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; CHECK: ins $27, $zero, 8, 5
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; CHECK: ins $27, $zero, 1, 4
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; CHECK: ins $27, $zero, 29, 1
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; CHECK: mtc0 $27, $12, 0
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ret void
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; CHECK: di
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; CHECK: ehb
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; CHECK: lw $27, {{[0-9]+}}($sp)
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; CHECK: mtc0 $27, $14, 0
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; CHECK: lw $27, {{[0-9]+}}($sp)
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; CHECK: mtc0 $27, $12, 0
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; CHECK: eret
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}
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define void @isr_hw3() #6 {
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; CHECK-LABEL: isr_hw3:
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; CHECK: mfc0 $27, $14, 0
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; CHECK: sw $27, {{[0-9]+}}($sp)
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; CHECK: mfc0 $27, $12, 0
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; CHECK: sw $27, {{[0-9]+}}($sp)
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; CHECK: ins $27, $zero, 8, 6
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; CHECK: ins $27, $zero, 1, 4
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; CHECK: ins $27, $zero, 29, 1
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; CHECK: mtc0 $27, $12, 0
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ret void
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; CHECK: di
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; CHECK: ehb
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; CHECK: lw $27, {{[0-9]+}}($sp)
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; CHECK: mtc0 $27, $14, 0
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; CHECK: lw $27, {{[0-9]+}}($sp)
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; CHECK: mtc0 $27, $12, 0
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; CHECK: eret
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}
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define void @isr_hw4() #7 {
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; CHECK-LABEL: isr_hw4:
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; CHECK: mfc0 $27, $14, 0
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; CHECK: sw $27, {{[0-9]+}}($sp)
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; CHECK: mfc0 $27, $12, 0
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; CHECK: sw $27, {{[0-9]+}}($sp)
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; CHECK: ins $27, $zero, 8, 7
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; CHECK: ins $27, $zero, 1, 4
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; CHECK: ins $27, $zero, 29, 1
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; CHECK: mtc0 $27, $12, 0
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ret void
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; CHECK: di
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; CHECK: ehb
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; CHECK: lw $27, {{[0-9]+}}($sp)
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; CHECK: mtc0 $27, $14, 0
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; CHECK: lw $27, {{[0-9]+}}($sp)
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; CHECK: mtc0 $27, $12, 0
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; CHECK: eret
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}
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define void @isr_hw5() #8 {
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; CHECK-LABEL: isr_hw5:
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; CHECK: mfc0 $27, $14, 0
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; CHECK: sw $27, {{[0-9]+}}($sp)
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; CHECK: mfc0 $27, $12, 0
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; CHECK: sw $27, {{[0-9]+}}($sp)
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; CHECK: ins $27, $zero, 8, 8
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; CHECK: ins $27, $zero, 1, 4
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; CHECK: ins $27, $zero, 29, 1
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; CHECK: mtc0 $27, $12, 0
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ret void
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; CHECK: di
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; CHECK: ehb
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; CHECK: lw $27, {{[0-9]+}}($sp)
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; CHECK: mtc0 $27, $14, 0
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; CHECK: lw $27, {{[0-9]+}}($sp)
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; CHECK: mtc0 $27, $12, 0
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; CHECK: eret
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}
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define void @isr_eic() #9 {
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; CHECK-LABEL: isr_eic:
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; CHECK: mfc0 $26, $13, 0
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; CHECK: ext $26, $26, 10, 6
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; CHECK: mfc0 $27, $14, 0
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; CHECK: sw $27, {{[0-9]+}}($sp)
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; CHECK: mfc0 $27, $12, 0
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; CHECK: sw $27, {{[0-9]+}}($sp)
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; CHECK: ins $27, $26, 10, 6
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; CHECK: ins $27, $zero, 1, 4
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; CHECK: ins $27, $zero, 29, 1
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; CHECK: mtc0 $27, $12, 0
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ret void
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; CHECK: di
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; CHECK: ehb
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; CHECK: lw $27, {{[0-9]+}}($sp)
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; CHECK: mtc0 $27, $14, 0
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; CHECK: lw $27, {{[0-9]+}}($sp)
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; CHECK: mtc0 $27, $12, 0
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; CHECK: eret
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}
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attributes #0 = { "interrupt"="sw0" }
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attributes #2 = { "interrupt"="sw1" }
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attributes #3 = { "interrupt"="hw0" }
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attributes #4 = { "interrupt"="hw1" }
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attributes #5 = { "interrupt"="hw2" }
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attributes #6 = { "interrupt"="hw3" }
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attributes #7 = { "interrupt"="hw4" }
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attributes #8 = { "interrupt"="hw5" }
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attributes #9 = { "interrupt"="eic" }
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