mirror of
https://github.com/c64scene-ar/llvm-6502.git
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d4b311fb43
Summary: Implement the LLVM assembly urem/srem and sdiv/udiv instructions in MIPS FastISel. Based on a patch by Reed Kotler. Test Plan: srem1.ll div1.ll test-suite at O0/O2 for mips32 r1/r2 Reviewers: dsanders, rkotler Subscribers: llvm-commits, rfuhler Differential Revision: http://reviews.llvm.org/D7028 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238757 91177308-0d34-0410-b5e6-96231b3b80d8
57 lines
2.3 KiB
LLVM
57 lines
2.3 KiB
LLVM
; RUN: llc < %s -march=mipsel -mcpu=mips32 -O0 -relocation-model=pic \
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; RUN: -fast-isel=true -mips-fast-isel -fast-isel-abort=1 | FileCheck %s
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; RUN: llc < %s -march=mipsel -mcpu=mips32r2 -O0 -relocation-model=pic \
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; RUN: -fast-isel=true -mips-fast-isel -fast-isel-abort=1 | FileCheck %s
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@sj = global i32 200, align 4
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@sk = global i32 -47, align 4
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@uj = global i32 200, align 4
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@uk = global i32 43, align 4
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@si = common global i32 0, align 4
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@ui = common global i32 0, align 4
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define void @rems() {
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; CHECK-LABEL: rems:
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; CHECK: lui $[[GOT1:[0-9]+]], %hi(_gp_disp)
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; CHECK: addiu $[[GOT2:[0-9]+]], $[[GOT1]], %lo(_gp_disp)
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; CHECK: addu $[[GOT:[0-9]+]], $[[GOT2:[0-9]+]], $25
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; CHECK-DAG: lw $[[I_ADDR:[0-9]+]], %got(si)($[[GOT]])
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; CHECK-DAG: lw $[[K_ADDR:[0-9]+]], %got(sk)($[[GOT]])
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; CHECK-DAG: lw $[[J_ADDR:[0-9]+]], %got(sj)($[[GOT]])
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; CHECK-DAG: lw $[[J:[0-9]+]], 0($[[J_ADDR]])
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; CHECK-DAG: lw $[[K:[0-9]+]], 0($[[K_ADDR]])
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; CHECK-DAG: div $zero, $[[J]], $[[K]]
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; CHECK_DAG: teq $[[K]], $zero, 7
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; CHECK-DAG: mfhi $[[RESULT:[0-9]+]]
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; CHECK: sw $[[RESULT]], 0($[[I_ADDR]])
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%1 = load i32, i32* @sj, align 4
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%2 = load i32, i32* @sk, align 4
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%rem = srem i32 %1, %2
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store i32 %rem, i32* @si, align 4
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ret void
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}
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; Function Attrs: noinline nounwind
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define void @remu() {
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; CHECK-LABEL: remu:
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; CHECK: lui $[[GOT1:[0-9]+]], %hi(_gp_disp)
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; CHECK: addiu $[[GOT2:[0-9]+]], $[[GOT1]], %lo(_gp_disp)
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; CHECK: addu $[[GOT:[0-9]+]], $[[GOT2:[0-9]+]], $25
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; CHECK-DAG: lw $[[I_ADDR:[0-9]+]], %got(ui)($[[GOT]])
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; CHECK-DAG: lw $[[K_ADDR:[0-9]+]], %got(uk)($[[GOT]])
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; CHECK-DAG: lw $[[J_ADDR:[0-9]+]], %got(uj)($[[GOT]])
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; CHECK-DAG: lw $[[J:[0-9]+]], 0($[[J_ADDR]])
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; CHECK-DAG: lw $[[K:[0-9]+]], 0($[[K_ADDR]])
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; CHECK-DAG: divu $zero, $[[J]], $[[K]]
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; CHECK_DAG: teq $[[K]], $zero, 7
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; CHECK-DAG: mfhi $[[RESULT:[0-9]+]]
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; CHECK: sw $[[RESULT]], 0($[[I_ADDR]])
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%1 = load i32, i32* @uj, align 4
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%2 = load i32, i32* @uk, align 4
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%rem = urem i32 %1, %2
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store i32 %rem, i32* @ui, align 4
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ret void
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}
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