; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=thumbv8-eabi -float-abi=hard -arm-restrict-it | FileCheck --check-prefixes=P01 %s
; RUN: llc < %s -mtriple=thumbv7-eabi -float-abi=hard -arm-restrict-it | FileCheck --check-prefixes=P01 %s
; RUN: llc < %s -mtriple=thumbv8-eabi -float-abi=hard -regalloc=basic -arm-restrict-it | FileCheck --check-prefixes=P23 %s
; RUN: llc < %s -mtriple=thumbv7-eabi -float-abi=hard -regalloc=basic -arm-restrict-it | FileCheck --check-prefixes=P23 %s
%"struct.__gnu_cxx::__normal_iterator<char*,std::basic_string<char, std::char_traits<char>, std::allocator<char> > >" = type { ptr }
%"struct.__gnu_cxx::new_allocator<char>" = type <{ i8 }>
%"struct.std::basic_string<char,std::char_traits<char>,std::allocator<char> >" = type { %"struct.__gnu_cxx::__normal_iterator<char*,std::basic_string<char, std::char_traits<char>, std::allocator<char> > >" }
%"struct.std::basic_string<char,std::char_traits<char>,std::allocator<char> >::_Rep" = type { %"struct.std::basic_string<char,std::char_traits<char>,std::allocator<char> >::_Rep_base" }
%"struct.std::basic_string<char,std::char_traits<char>,std::allocator<char> >::_Rep_base" = type { i32, i32, i32 }
define weak arm_aapcs_vfpcc i32 @_ZNKSs7compareERKSs(ptr %this, ptr %__str) {
; P01-LABEL: _ZNKSs7compareERKSs:
; P01: @ %bb.0: @ %entry
; P01-NEXT: .save {r4, r5, r6, r7, r8, lr}
; P01-NEXT: push.w {r4, r5, r6, r7, r8, lr}
; P01-NEXT: mov r8, r1
; P01-NEXT: mov r5, r0
; P01-NEXT: bl _ZNKSs4sizeEv
; P01-NEXT: mov r4, r0
; P01-NEXT: mov r0, r8
; P01-NEXT: bl _ZNKSs4sizeEv
; P01-NEXT: mov r6, r4
; P01-NEXT: cmp r4, r0
; P01-NEXT: mov r7, r0
; P01-NEXT: it hi
; P01-NEXT: movhi r6, r0
; P01-NEXT: mov r0, r5
; P01-NEXT: bl _ZNKSs7_M_dataEv
; P01-NEXT: mov r5, r0
; P01-NEXT: mov r0, r8
; P01-NEXT: bl _ZNKSs4dataEv
; P01-NEXT: mov r1, r0
; P01-NEXT: mov r0, r5
; P01-NEXT: mov r2, r6
; P01-NEXT: bl memcmp
; P01-NEXT: subs r1, r4, r7
; P01-NEXT: cmp r0, #0
; P01-NEXT: it eq
; P01-NEXT: moveq r0, r1
; P01-NEXT: pop.w {r4, r5, r6, r7, r8, pc}
;
; P23-LABEL: _ZNKSs7compareERKSs:
; P23: @ %bb.0: @ %entry
; P23-NEXT: .save {r4, r5, r6, r7, r8, lr}
; P23-NEXT: push.w {r4, r5, r6, r7, r8, lr}
; P23-NEXT: mov r8, r1
; P23-NEXT: mov r7, r0
; P23-NEXT: bl _ZNKSs4sizeEv
; P23-NEXT: mov r6, r0
; P23-NEXT: mov r0, r8
; P23-NEXT: bl _ZNKSs4sizeEv
; P23-NEXT: mov r4, r6
; P23-NEXT: cmp r6, r0
; P23-NEXT: mov r5, r0
; P23-NEXT: it hi
; P23-NEXT: movhi r4, r0
; P23-NEXT: mov r0, r7
; P23-NEXT: bl _ZNKSs7_M_dataEv
; P23-NEXT: mov r7, r0
; P23-NEXT: mov r0, r8
; P23-NEXT: bl _ZNKSs4dataEv
; P23-NEXT: mov r1, r0
; P23-NEXT: mov r0, r7
; P23-NEXT: mov r2, r4
; P23-NEXT: bl memcmp
; P23-NEXT: subs r1, r6, r5
; P23-NEXT: cmp r0, #0
; P23-NEXT: it eq
; P23-NEXT: moveq r0, r1
; P23-NEXT: pop.w {r4, r5, r6, r7, r8, pc}
entry:
%0 = tail call arm_aapcs_vfpcc i32 @_ZNKSs4sizeEv(ptr %this) ; <i32> [#uses=3]
%1 = tail call arm_aapcs_vfpcc i32 @_ZNKSs4sizeEv(ptr %__str) ; <i32> [#uses=3]
%2 = icmp ult i32 %1, %0 ; <i1> [#uses=1]
%3 = select i1 %2, i32 %1, i32 %0 ; <i32> [#uses=1]
%4 = tail call arm_aapcs_vfpcc ptr @_ZNKSs7_M_dataEv(ptr %this) ; <ptr> [#uses=1]
%5 = tail call arm_aapcs_vfpcc ptr @_ZNKSs4dataEv(ptr %__str) ; <ptr> [#uses=1]
%6 = tail call arm_aapcs_vfpcc i32 @memcmp(ptr %4, ptr %5, i32 %3) nounwind readonly ; <i32> [#uses=2]
%7 = icmp eq i32 %6, 0 ; <i1> [#uses=1]
br i1 %7, label %bb, label %bb1
bb: ; preds = %entry
%8 = sub i32 %0, %1 ; <i32> [#uses=1]
ret i32 %8
bb1: ; preds = %entry
ret i32 %6
}
declare arm_aapcs_vfpcc i32 @memcmp(ptr nocapture, ptr nocapture, i32) nounwind readonly
declare arm_aapcs_vfpcc i32 @_ZNKSs4sizeEv(ptr %this)
declare arm_aapcs_vfpcc ptr @_ZNKSs7_M_dataEv(ptr %this)
declare arm_aapcs_vfpcc ptr @_ZNKSs4dataEv(ptr %this)
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