| ; RUN: llc < %s -mtriple=arm64-eabi | FileCheck %s |
| |
| define void @bzero_4_heap(i8* nocapture %c) { |
| ; CHECK-LABEL: bzero_4_heap: |
| ; CHECK: str wzr, [x0] |
| ; CHECK-NEXT: ret |
| call void @llvm.memset.p0i8.i64(i8* align 4 %c, i8 0, i64 4, i1 false) |
| ret void |
| } |
| |
| define void @bzero_8_heap(i8* nocapture %c) { |
| ; CHECK-LABEL: bzero_8_heap: |
| ; CHECK: str xzr, [x0] |
| ; CHECK-NEXT: ret |
| call void @llvm.memset.p0i8.i64(i8* align 8 %c, i8 0, i64 8, i1 false) |
| ret void |
| } |
| |
| define void @bzero_12_heap(i8* nocapture %c) { |
| ; CHECK-LABEL: bzero_12_heap: |
| ; CHECK: str wzr, [x0, #8] |
| ; CHECK-NEXT: str xzr, [x0] |
| ; CHECK-NEXT: ret |
| call void @llvm.memset.p0i8.i64(i8* align 8 %c, i8 0, i64 12, i1 false) |
| ret void |
| } |
| |
| define void @bzero_16_heap(i8* nocapture %c) { |
| ; CHECK-LABEL: bzero_16_heap: |
| ; CHECK: stp xzr, xzr, [x0] |
| ; CHECK-NEXT: ret |
| call void @llvm.memset.p0i8.i64(i8* align 8 %c, i8 0, i64 16, i1 false) |
| ret void |
| } |
| |
| define void @bzero_32_heap(i8* nocapture %c) { |
| ; CHECK-LABEL: bzero_32_heap: |
| ; CHECK: movi v0.2d, #0000000000000000 |
| ; CHECK-NEXT: stp q0, q0, [x0] |
| ; CHECK-NEXT: ret |
| call void @llvm.memset.p0i8.i64(i8* align 8 %c, i8 0, i64 32, i1 false) |
| ret void |
| } |
| |
| define void @bzero_64_heap(i8* nocapture %c) { |
| ; CHECK-LABEL: bzero_64_heap: |
| ; CHECK: movi v0.2d, #0000000000000000 |
| ; CHECK-NEXT: stp q0, q0, [x0, #32] |
| ; CHECK-NEXT: stp q0, q0, [x0] |
| ; CHECK-NEXT: ret |
| call void @llvm.memset.p0i8.i64(i8* align 8 %c, i8 0, i64 64, i1 false) |
| ret void |
| } |
| |
| define void @bzero_4_stack() { |
| ; CHECK-LABEL: bzero_4_stack: |
| ; CHECK: str wzr, [sp, #12] |
| ; CHECK-NEXT: bl something |
| %buf = alloca [4 x i8], align 1 |
| %cast = bitcast [4 x i8]* %buf to i8* |
| call void @llvm.memset.p0i8.i32(i8* %cast, i8 0, i32 4, i1 false) |
| call void @something(i8* %cast) |
| ret void |
| } |
| |
| define void @bzero_8_stack() { |
| ; CHECK-LABEL: bzero_8_stack: |
| ; CHECK: str xzr, [sp, #8] |
| ; CHECK-NEXT: bl something |
| %buf = alloca [8 x i8], align 1 |
| %cast = bitcast [8 x i8]* %buf to i8* |
| call void @llvm.memset.p0i8.i32(i8* %cast, i8 0, i32 8, i1 false) |
| call void @something(i8* %cast) |
| ret void |
| } |
| |
| define void @bzero_12_stack() { |
| ; CHECK-LABEL: bzero_12_stack: |
| ; CHECK: str wzr, [sp, #8] |
| ; CHECK-NEXT: str xzr, [sp] |
| ; CHECK-NEXT: bl something |
| %buf = alloca [12 x i8], align 1 |
| %cast = bitcast [12 x i8]* %buf to i8* |
| call void @llvm.memset.p0i8.i32(i8* %cast, i8 0, i32 12, i1 false) |
| call void @something(i8* %cast) |
| ret void |
| } |
| |
| define void @bzero_16_stack() { |
| ; CHECK-LABEL: bzero_16_stack: |
| ; CHECK: stp xzr, x30, [sp, #8] |
| ; CHECK: mov x0, sp |
| ; CHECK: str xzr, [sp] |
| ; CHECK-NEXT: bl something |
| %buf = alloca [16 x i8], align 1 |
| %cast = bitcast [16 x i8]* %buf to i8* |
| call void @llvm.memset.p0i8.i32(i8* %cast, i8 0, i32 16, i1 false) |
| call void @something(i8* %cast) |
| ret void |
| } |
| |
| define void @bzero_20_stack() { |
| ; CHECK-LABEL: bzero_20_stack: |
| ; CHECK: stp xzr, xzr, [sp, #8] |
| ; CHECK-NEXT: str wzr, [sp, #24] |
| ; CHECK-NEXT: bl something |
| %buf = alloca [20 x i8], align 1 |
| %cast = bitcast [20 x i8]* %buf to i8* |
| call void @llvm.memset.p0i8.i32(i8* %cast, i8 0, i32 20, i1 false) |
| call void @something(i8* %cast) |
| ret void |
| } |
| |
| define void @bzero_26_stack() { |
| ; CHECK-LABEL: bzero_26_stack: |
| ; CHECK: stp xzr, xzr, [sp, #8] |
| ; CHECK-NEXT: str xzr, [sp] |
| ; CHECK-NEXT: strh wzr, [sp, #24] |
| ; CHECK-NEXT: bl something |
| %buf = alloca [26 x i8], align 1 |
| %cast = bitcast [26 x i8]* %buf to i8* |
| call void @llvm.memset.p0i8.i32(i8* %cast, i8 0, i32 26, i1 false) |
| call void @something(i8* %cast) |
| ret void |
| } |
| |
| define void @bzero_32_stack() { |
| ; CHECK-LABEL: bzero_32_stack: |
| ; CHECK: movi v0.2d, #0000000000000000 |
| ; CHECK-NEXT: mov x0, sp |
| ; CHECK-NEXT: stp q0, q0, [sp] |
| ; CHECK-NEXT: bl something |
| %buf = alloca [32 x i8], align 1 |
| %cast = bitcast [32 x i8]* %buf to i8* |
| call void @llvm.memset.p0i8.i32(i8* %cast, i8 0, i32 32, i1 false) |
| call void @something(i8* %cast) |
| ret void |
| } |
| |
| define void @bzero_40_stack() { |
| ; CHECK-LABEL: bzero_40_stack: |
| ; CHECK: movi v0.2d, #0000000000000000 |
| ; CHECK-NEXT: mov x0, sp |
| ; CHECK-NEXT: str xzr, [sp, #32] |
| ; CHECK-NEXT: stp q0, q0, [sp] |
| ; CHECK-NEXT: bl something |
| %buf = alloca [40 x i8], align 1 |
| %cast = bitcast [40 x i8]* %buf to i8* |
| call void @llvm.memset.p0i8.i32(i8* %cast, i8 0, i32 40, i1 false) |
| call void @something(i8* %cast) |
| ret void |
| } |
| |
| define void @bzero_64_stack() { |
| ; CHECK-LABEL: bzero_64_stack: |
| ; CHECK: movi v0.2d, #0000000000000000 |
| ; CHECK-NEXT: mov x0, sp |
| ; CHECK-NEXT: stp q0, q0, [sp, #32] |
| ; CHECK-NEXT: stp q0, q0, [sp] |
| ; CHECK-NEXT: bl something |
| %buf = alloca [64 x i8], align 1 |
| %cast = bitcast [64 x i8]* %buf to i8* |
| call void @llvm.memset.p0i8.i32(i8* %cast, i8 0, i32 64, i1 false) |
| call void @something(i8* %cast) |
| ret void |
| } |
| |
| define void @bzero_72_stack() { |
| ; CHECK-LABEL: bzero_72_stack: |
| ; CHECK: movi v0.2d, #0000000000000000 |
| ; CHECK-NEXT: mov x0, sp |
| ; CHECK-NEXT: str xzr, [sp, #64] |
| ; CHECK-NEXT: stp q0, q0, [sp, #32] |
| ; CHECK-NEXT: stp q0, q0, [sp] |
| ; CHECK-NEXT: bl something |
| %buf = alloca [72 x i8], align 1 |
| %cast = bitcast [72 x i8]* %buf to i8* |
| call void @llvm.memset.p0i8.i32(i8* %cast, i8 0, i32 72, i1 false) |
| call void @something(i8* %cast) |
| ret void |
| } |
| |
| define void @bzero_128_stack() { |
| ; CHECK-LABEL: bzero_128_stack: |
| ; CHECK: movi v0.2d, #0000000000000000 |
| ; CHECK-NEXT: mov x0, sp |
| ; CHECK-NEXT: stp q0, q0, [sp, #96] |
| ; CHECK-NEXT: stp q0, q0, [sp, #64] |
| ; CHECK-NEXT: stp q0, q0, [sp, #32] |
| ; CHECK-NEXT: stp q0, q0, [sp] |
| ; CHECK-NEXT: bl something |
| %buf = alloca [128 x i8], align 1 |
| %cast = bitcast [128 x i8]* %buf to i8* |
| call void @llvm.memset.p0i8.i32(i8* %cast, i8 0, i32 128, i1 false) |
| call void @something(i8* %cast) |
| ret void |
| } |
| |
| define void @bzero_256_stack() { |
| ; CHECK-LABEL: bzero_256_stack: |
| ; CHECK: movi v0.2d, #0000000000000000 |
| ; CHECK-NEXT: mov x0, sp |
| ; CHECK-NEXT: stp q0, q0, [sp, #224] |
| ; CHECK-NEXT: stp q0, q0, [sp, #192] |
| ; CHECK-NEXT: stp q0, q0, [sp, #160] |
| ; CHECK-NEXT: stp q0, q0, [sp, #128] |
| ; CHECK-NEXT: stp q0, q0, [sp, #96] |
| ; CHECK-NEXT: stp q0, q0, [sp, #64] |
| ; CHECK-NEXT: stp q0, q0, [sp, #32] |
| ; CHECK-NEXT: stp q0, q0, [sp] |
| ; CHECK-NEXT: bl something |
| %buf = alloca [256 x i8], align 1 |
| %cast = bitcast [256 x i8]* %buf to i8* |
| call void @llvm.memset.p0i8.i32(i8* %cast, i8 0, i32 256, i1 false) |
| call void @something(i8* %cast) |
| ret void |
| } |
| |
| define void @memset_4_stack() { |
| ; CHECK-LABEL: memset_4_stack: |
| ; CHECK: mov w8, #-1431655766 |
| ; CHECK-NEXT: add x0, sp, #12 |
| ; CHECK-NEXT: str w8, [sp, #12] |
| ; CHECK-NEXT: bl something |
| %buf = alloca [4 x i8], align 1 |
| %cast = bitcast [4 x i8]* %buf to i8* |
| call void @llvm.memset.p0i8.i32(i8* %cast, i8 -86, i32 4, i1 false) |
| call void @something(i8* %cast) |
| ret void |
| } |
| |
| define void @memset_8_stack() { |
| ; CHECK-LABEL: memset_8_stack: |
| ; CHECK: mov x8, #-6148914691236517206 |
| ; CHECK-NEXT: add x0, sp, #8 |
| ; CHECK-NEXT: str x8, [sp, #8] |
| ; CHECK-NEXT: bl something |
| %buf = alloca [8 x i8], align 1 |
| %cast = bitcast [8 x i8]* %buf to i8* |
| call void @llvm.memset.p0i8.i32(i8* %cast, i8 -86, i32 8, i1 false) |
| call void @something(i8* %cast) |
| ret void |
| } |
| |
| define void @memset_12_stack() { |
| ; CHECK-LABEL: memset_12_stack: |
| ; CHECK: mov x8, #-6148914691236517206 |
| ; CHECK-NEXT: mov x0, sp |
| ; CHECK-NEXT: str x8, [sp] |
| ; CHECK-NEXT: str w8, [sp, #8] |
| ; CHECK-NEXT: bl something |
| %buf = alloca [12 x i8], align 1 |
| %cast = bitcast [12 x i8]* %buf to i8* |
| call void @llvm.memset.p0i8.i32(i8* %cast, i8 -86, i32 12, i1 false) |
| call void @something(i8* %cast) |
| ret void |
| } |
| |
| define void @memset_16_stack() { |
| ; CHECK-LABEL: memset_16_stack: |
| ; CHECK: mov x8, #-6148914691236517206 |
| ; CHECK-NEXT: mov x0, sp |
| ; CHECK-NEXT: stp x8, x30, [sp, #8] |
| ; CHECK-NEXT: str x8, [sp] |
| ; CHECK-NEXT: bl something |
| %buf = alloca [16 x i8], align 1 |
| %cast = bitcast [16 x i8]* %buf to i8* |
| call void @llvm.memset.p0i8.i32(i8* %cast, i8 -86, i32 16, i1 false) |
| call void @something(i8* %cast) |
| ret void |
| } |
| |
| define void @memset_20_stack() { |
| ; CHECK-LABEL: memset_20_stack: |
| ; CHECK: mov x8, #-6148914691236517206 |
| ; CHECK-NEXT: add x0, sp, #8 |
| ; CHECK-NEXT: stp x8, x8, [sp, #8] |
| ; CHECK-NEXT: str w8, [sp, #24] |
| ; CHECK-NEXT: bl something |
| %buf = alloca [20 x i8], align 1 |
| %cast = bitcast [20 x i8]* %buf to i8* |
| call void @llvm.memset.p0i8.i32(i8* %cast, i8 -86, i32 20, i1 false) |
| call void @something(i8* %cast) |
| ret void |
| } |
| |
| define void @memset_26_stack() { |
| ; CHECK-LABEL: memset_26_stack: |
| ; CHECK: mov x8, #-6148914691236517206 |
| ; CHECK-NEXT: mov x0, sp |
| ; CHECK-NEXT: stp x8, x8, [sp, #8] |
| ; CHECK-NEXT: str x8, [sp] |
| ; CHECK-NEXT: strh w8, [sp, #24] |
| ; CHECK-NEXT: bl something |
| %buf = alloca [26 x i8], align 1 |
| %cast = bitcast [26 x i8]* %buf to i8* |
| call void @llvm.memset.p0i8.i32(i8* %cast, i8 -86, i32 26, i1 false) |
| call void @something(i8* %cast) |
| ret void |
| } |
| |
| define void @memset_32_stack() { |
| ; CHECK-LABEL: memset_32_stack: |
| ; CHECK: movi v0.16b, #170 |
| ; CHECK-NEXT: mov x0, sp |
| ; CHECK-NEXT: stp q0, q0, [sp] |
| ; CHECK-NEXT: bl something |
| %buf = alloca [32 x i8], align 1 |
| %cast = bitcast [32 x i8]* %buf to i8* |
| call void @llvm.memset.p0i8.i32(i8* %cast, i8 -86, i32 32, i1 false) |
| call void @something(i8* %cast) |
| ret void |
| } |
| |
| define void @memset_40_stack() { |
| ; CHECK-LABEL: memset_40_stack: |
| ; CHECK: mov x8, #-6148914691236517206 |
| ; CHECK-NEXT: movi v0.16b, #170 |
| ; CHECK-NEXT: mov x0, sp |
| ; CHECK-NEXT: str x8, [sp, #32] |
| ; CHECK-NEXT: stp q0, q0, [sp] |
| ; CHECK-NEXT: bl something |
| %buf = alloca [40 x i8], align 1 |
| %cast = bitcast [40 x i8]* %buf to i8* |
| call void @llvm.memset.p0i8.i32(i8* %cast, i8 -86, i32 40, i1 false) |
| call void @something(i8* %cast) |
| ret void |
| } |
| |
| define void @memset_64_stack() { |
| ; CHECK-LABEL: memset_64_stack: |
| ; CHECK: movi v0.16b, #170 |
| ; CHECK-NEXT: mov x0, sp |
| ; CHECK-NEXT: stp q0, q0, [sp, #32] |
| ; CHECK-NEXT: stp q0, q0, [sp] |
| ; CHECK-NEXT: bl something |
| %buf = alloca [64 x i8], align 1 |
| %cast = bitcast [64 x i8]* %buf to i8* |
| call void @llvm.memset.p0i8.i32(i8* %cast, i8 -86, i32 64, i1 false) |
| call void @something(i8* %cast) |
| ret void |
| } |
| |
| define void @memset_72_stack() { |
| ; CHECK-LABEL: memset_72_stack: |
| ; CHECK: mov x8, #-6148914691236517206 |
| ; CHECK-NEXT: movi v0.16b, #170 |
| ; CHECK-NEXT: mov x0, sp |
| ; CHECK-NEXT: str x8, [sp, #64] |
| ; CHECK-NEXT: stp q0, q0, [sp, #32] |
| ; CHECK-NEXT: stp q0, q0, [sp] |
| ; CHECK-NEXT: bl something |
| %buf = alloca [72 x i8], align 1 |
| %cast = bitcast [72 x i8]* %buf to i8* |
| call void @llvm.memset.p0i8.i32(i8* %cast, i8 -86, i32 72, i1 false) |
| call void @something(i8* %cast) |
| ret void |
| } |
| |
| define void @memset_128_stack() { |
| ; CHECK-LABEL: memset_128_stack: |
| ; CHECK: movi v0.16b, #170 |
| ; CHECK-NEXT: mov x0, sp |
| ; CHECK-NEXT: stp q0, q0, [sp, #96] |
| ; CHECK-NEXT: stp q0, q0, [sp, #64] |
| ; CHECK-NEXT: stp q0, q0, [sp, #32] |
| ; CHECK-NEXT: stp q0, q0, [sp] |
| ; CHECK-NEXT: bl something |
| %buf = alloca [128 x i8], align 1 |
| %cast = bitcast [128 x i8]* %buf to i8* |
| call void @llvm.memset.p0i8.i32(i8* %cast, i8 -86, i32 128, i1 false) |
| call void @something(i8* %cast) |
| ret void |
| } |
| |
| define void @memset_256_stack() { |
| ; CHECK-LABEL: memset_256_stack: |
| ; CHECK: movi v0.16b, #170 |
| ; CHECK-NEXT: mov x0, sp |
| ; CHECK-NEXT: stp q0, q0, [sp, #224] |
| ; CHECK-NEXT: stp q0, q0, [sp, #192] |
| ; CHECK-NEXT: stp q0, q0, [sp, #160] |
| ; CHECK-NEXT: stp q0, q0, [sp, #128] |
| ; CHECK-NEXT: stp q0, q0, [sp, #96] |
| ; CHECK-NEXT: stp q0, q0, [sp, #64] |
| ; CHECK-NEXT: stp q0, q0, [sp, #32] |
| ; CHECK-NEXT: stp q0, q0, [sp] |
| ; CHECK-NEXT: bl something |
| %buf = alloca [256 x i8], align 1 |
| %cast = bitcast [256 x i8]* %buf to i8* |
| call void @llvm.memset.p0i8.i32(i8* %cast, i8 -86, i32 256, i1 false) |
| call void @something(i8* %cast) |
| ret void |
| } |
| |
| declare void @something(i8*) |
| declare void @llvm.memset.p0i8.i32(i8* nocapture, i8, i32, i1) nounwind |
| declare void @llvm.memset.p0i8.i64(i8* nocapture, i8, i64, i1) nounwind |