1 ; RUN: llc -O3 -disable-peephole -mtriple=x86_64-unknown-unknown -mattr=+adx < %s | FileCheck %s 2 3 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" 4 target triple = "x86_64-unknown-unknown" 5 6 ; Stack reload folding tests. 7 ; 8 ; By including a nop call with sideeffects we can force a partial register spill of the 9 ; relevant registers and check that the reload is correctly folded into the instruction. 10 11 define i8 @stack_fold_addcarry_u32(i8 %a0, i32 %a1, i32 %a2, i8* %a3) { 12 ;CHECK-LABEL: stack_fold_addcarry_u32 13 ;CHECK: adcxl {{-?[0-9]*}}(%rsp), %ecx {{.*#+}} 4-byte Folded Reload 14 %1 = tail call i64 asm sideeffect "nop", "=x,~{rax},~{rbx},~{rcx},~{rdx},~{rsi},~{rdi},~{rbp},~{r8},~{r9},~{r10},~{r11},~{r12},~{r13},~{r14},~{r15}"() 15 %2 = tail call i8 @llvm.x86.addcarry.u32(i8 %a0, i32 %a1, i32 %a2, i8* %a3) 16 ret i8 %2; 17 } 18 declare i8 @llvm.x86.addcarry.u32(i8, i32, i32, i8*) 19 20 define i8 @stack_fold_addcarry_u64(i8 %a0, i64 %a1, i64 %a2, i8* %a3) { 21 ;CHECK-LABEL: stack_fold_addcarry_u64 22 ;CHECK: adcxq {{-?[0-9]*}}(%rsp), %rcx {{.*#+}} 8-byte Folded Reload 23 %1 = tail call i64 asm sideeffect "nop", "=x,~{rax},~{rbx},~{rcx},~{rdx},~{rsi},~{rdi},~{rbp},~{r8},~{r9},~{r10},~{r11},~{r12},~{r13},~{r14},~{r15}"() 24 %2 = tail call i8 @llvm.x86.addcarry.u64(i8 %a0, i64 %a1, i64 %a2, i8* %a3) 25 ret i8 %2; 26 } 27 declare i8 @llvm.x86.addcarry.u64(i8, i64, i64, i8*) 28 29 define i8 @stack_fold_addcarryx_u32(i8 %a0, i32 %a1, i32 %a2, i8* %a3) { 30 ;CHECK-LABEL: stack_fold_addcarryx_u32 31 ;CHECK: adcxl {{-?[0-9]*}}(%rsp), %ecx {{.*#+}} 4-byte Folded Reload 32 %1 = tail call i64 asm sideeffect "nop", "=x,~{rax},~{rbx},~{rcx},~{rdx},~{rsi},~{rdi},~{rbp},~{r8},~{r9},~{r10},~{r11},~{r12},~{r13},~{r14},~{r15}"() 33 %2 = tail call i8 @llvm.x86.addcarryx.u32(i8 %a0, i32 %a1, i32 %a2, i8* %a3) 34 ret i8 %2; 35 } 36 declare i8 @llvm.x86.addcarryx.u32(i8, i32, i32, i8*) 37 38 define i8 @stack_fold_addcarryx_u64(i8 %a0, i64 %a1, i64 %a2, i8* %a3) { 39 ;CHECK-LABEL: stack_fold_addcarryx_u64 40 ;CHECK: adcxq {{-?[0-9]*}}(%rsp), %rcx {{.*#+}} 8-byte Folded Reload 41 %1 = tail call i64 asm sideeffect "nop", "=x,~{rax},~{rbx},~{rcx},~{rdx},~{rsi},~{rdi},~{rbp},~{r8},~{r9},~{r10},~{r11},~{r12},~{r13},~{r14},~{r15}"() 42 %2 = tail call i8 @llvm.x86.addcarryx.u64(i8 %a0, i64 %a1, i64 %a2, i8* %a3) 43 ret i8 %2; 44 } 45 declare i8 @llvm.x86.addcarryx.u64(i8, i64, i64, i8*) 46
