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0c8a79e78d
llvm-mirror/test/CodeGen/ARM/debug-frame.ll
Eli Friedman e844a79a1e [ARM] Eliminate redundant "mov rN, sp" instructions in Thumb1. 
This takes sequences like "mov r4, sp; str r0, [r4]", and optimizes them
to something like "str r0, [sp]".

For regular stack variables, this optimization was already implemented:
we lower loads and stores using frame indexes, which are expanded later.
However, when constructing a call frame for a call with more than four
arguments, the existing optimization doesn't apply.  We need to use
stores which are actually relative to the current value of sp, and don't
have an associated frame index.

This patch adds a special case to handle that construct.  At the DAG
level, this is an ISD::STORE where the address is a CopyFromReg from SP
(plus a small constant offset).

This applies only to Thumb1: in Thumb2 or ARM mode, a regular store
instruction can access SP directly, so the COPY gets eliminated by
existing code.

The change to ARMDAGToDAGISel::SelectThumbAddrModeSP is a related
cleanup: we shouldn't pretend that it can select anything other than
frame indexes.

Differential Revision: https://reviews.llvm.org/D59568

llvm-svn: 356601
2019-03-20 19:40:45 +00:00

572 lines
20 KiB
LLVM
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; ARM EHABI integrated test
; This test case checks whether the ARM DWARF stack frame directives
; are properly generated or not.
; We have to check several cases:
; (1) arm with -frame-pointer=all
; (2) arm without -frame-pointer=all
; (3) armv7 with -frame-pointer=all
; (4) armv7 without -frame-pointer=all
; (5) thumb with -frame-pointer=all
; (6) thumb without -frame-pointer=all
; (7) thumbv7 with -frame-pointer=all
; (8) thumbv7 without -frame-pointer=all
; (9) thumbv7 with -no-integrated-as
; RUN: llc -mtriple arm-unknown-linux-gnueabi \
; RUN: -frame-pointer=all -filetype=asm -o - %s \
; RUN: | FileCheck %s --check-prefix=CHECK-FP
; RUN: llc -mtriple arm-unknown-linux-gnueabi \
; RUN: -filetype=asm -o - %s \
; RUN: | FileCheck %s --check-prefix=CHECK-FP-ELIM
; RUN: llc -mtriple armv7-unknown-linux-gnueabi \
; RUN: -frame-pointer=all -filetype=asm -o - %s \
; RUN: | FileCheck %s --check-prefix=CHECK-V7-FP
; RUN: llc -mtriple armv7-unknown-linux-gnueabi \
; RUN: -filetype=asm -o - %s \
; RUN: | FileCheck %s --check-prefix=CHECK-V7-FP-ELIM
; RUN: llc -mtriple thumbv5-unknown-linux-gnueabi \
; RUN: -frame-pointer=all -filetype=asm -o - %s \
; RUN: | FileCheck %s --check-prefix=CHECK-THUMB-FP
; RUN: llc -mtriple thumbv5-unknown-linux-gnueabi \
; RUN: -filetype=asm -o - %s \
; RUN: | FileCheck %s --check-prefix=CHECK-THUMB-FP-ELIM
; RUN: llc -mtriple thumbv7-unknown-linux-gnueabi \
; RUN: -frame-pointer=all -filetype=asm -o - %s \
; RUN: | FileCheck %s --check-prefix=CHECK-THUMB-V7-FP
; RUN: llc -mtriple thumbv7-unknown-linux-gnueabi \
; RUN: -filetype=asm -o - %s \
; RUN: | FileCheck %s --check-prefix=CHECK-THUMB-V7-FP-ELIM
; RUN: llc -mtriple thumbv7-unknown-linux-gnueabi \
; RUN: -frame-pointer=all -no-integrated-as -filetype=asm -o - %s \
; RUN: | FileCheck %s --check-prefix=CHECK-THUMB-V7-FP-NOIAS
;-------------------------------------------------------------------------------
; Test 1
;-------------------------------------------------------------------------------
; This is the LLVM assembly generated from following C++ code:
;
; extern void print(int, int, int, int, int);
; extern void print(double, double, double, double, double);
;
; void test(int a, int b, int c, int d, int e,
; double m, double n, double p, double q, double r) {
; try {
; print(a, b, c, d, e);
; } catch (...) {
; print(m, n, p, q, r);
; }
; }
declare void @_Z5printiiiii(i32, i32, i32, i32, i32)
declare void @_Z5printddddd(double, double, double, double, double)
define void @_Z4testiiiiiddddd(i32 %a, i32 %b, i32 %c, i32 %d, i32 %e,
double %m, double %n, double %p,
double %q, double %r) personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
entry:
invoke void @_Z5printiiiii(i32 %a, i32 %b, i32 %c, i32 %d, i32 %e)
to label %try.cont unwind label %lpad
lpad:
%0 = landingpad { i8*, i32 }
catch i8* null
%1 = extractvalue { i8*, i32 } %0, 0
%2 = tail call i8* @__cxa_begin_catch(i8* %1)
invoke void @_Z5printddddd(double %m, double %n, double %p,
double %q, double %r)
to label %invoke.cont2 unwind label %lpad1
invoke.cont2:
tail call void @__cxa_end_catch()
br label %try.cont
try.cont:
ret void
lpad1:
%3 = landingpad { i8*, i32 }
cleanup
invoke void @__cxa_end_catch()
to label %eh.resume unwind label %terminate.lpad
eh.resume:
resume { i8*, i32 } %3
terminate.lpad:
%4 = landingpad { i8*, i32 }
catch i8* null
%5 = extractvalue { i8*, i32 } %4, 0
tail call void @__clang_call_terminate(i8* %5)
unreachable
}
declare void @__clang_call_terminate(i8*)
declare i32 @__gxx_personality_v0(...)
declare i8* @__cxa_begin_catch(i8*)
declare void @__cxa_end_catch()
declare void @_ZSt9terminatev()
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!10, !11}
!llvm.ident = !{!12}
!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.5 ", isOptimized: false, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
!1 = !DIFile(filename: "exp.cpp", directory: "/tmp")
!2 = !{}
!4 = distinct !DISubprogram(name: "test", linkageName: "_Z4testiiiiiddddd", line: 4, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 5, file: !1, scope: !5, type: !6, retainedNodes: !2)
!5 = !DIFile(filename: "exp.cpp", directory: "/tmp")
!6 = !DISubroutineType(types: !7)
!7 = !{null, !8, !8, !8, !8, !8, !9, !9, !9, !9, !9}
!8 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
!9 = !DIBasicType(tag: DW_TAG_base_type, name: "double", size: 64, align: 64, encoding: DW_ATE_float)
!10 = !{i32 2, !"Dwarf Version", i32 4}
!11 = !{i32 1, !"Debug Info Version", i32 3}
!12 = !{!"clang version 3.5 "}
!13 = !DILocalVariable(name: "a", line: 4, arg: 1, scope: !4, file: !5, type: !8)
!14 = !DILocation(line: 4, scope: !4)
!15 = !DILocalVariable(name: "b", line: 4, arg: 2, scope: !4, file: !5, type: !8)
!16 = !DILocalVariable(name: "c", line: 4, arg: 3, scope: !4, file: !5, type: !8)
!17 = !DILocalVariable(name: "d", line: 4, arg: 4, scope: !4, file: !5, type: !8)
!18 = !DILocalVariable(name: "e", line: 4, arg: 5, scope: !4, file: !5, type: !8)
!19 = !DILocalVariable(name: "m", line: 5, arg: 6, scope: !4, file: !5, type: !9)
!20 = !DILocation(line: 5, scope: !4)
!21 = !DILocalVariable(name: "n", line: 5, arg: 7, scope: !4, file: !5, type: !9)
!22 = !DILocalVariable(name: "p", line: 5, arg: 8, scope: !4, file: !5, type: !9)
!23 = !DILocalVariable(name: "q", line: 5, arg: 9, scope: !4, file: !5, type: !9)
!24 = !DILocalVariable(name: "r", line: 5, arg: 10, scope: !4, file: !5, type: !9)
!25 = !DILocation(line: 7, scope: !26)
!26 = distinct !DILexicalBlock(line: 6, column: 0, file: !1, scope: !4)
!27 = !DILocation(line: 8, scope: !26)
!28 = !DILocation(line: 11, scope: !26)
!29 = !DILocation(line: 9, scope: !30)
!30 = distinct !DILexicalBlock(line: 8, column: 0, file: !1, scope: !4)
!31 = !DILocation(line: 10, scope: !30)
!32 = !DILocation(line: 10, scope: !4)
!33 = !DILocation(line: 11, scope: !4)
!34 = !DILocation(line: 11, scope: !30)
; CHECK-FP-LABEL: _Z4testiiiiiddddd:
; CHECK-FP: .cfi_startproc
; CHECK-FP: push {r4, r5, r6, r7, r8, r9, r10, r11, lr}
; CHECK-FP: .cfi_def_cfa_offset 36
; CHECK-FP: .cfi_offset lr, -4
; CHECK-FP: .cfi_offset r11, -8
; CHECK-FP: .cfi_offset r10, -12
; CHECK-FP: .cfi_offset r9, -16
; CHECK-FP: .cfi_offset r8, -20
; CHECK-FP: .cfi_offset r7, -24
; CHECK-FP: .cfi_offset r6, -28
; CHECK-FP: .cfi_offset r5, -32
; CHECK-FP: .cfi_offset r4, -36
; CHECK-FP: add r11, sp, #28
; CHECK-FP: .cfi_def_cfa r11, 8
; CHECK-FP: sub sp, sp, #44
; CHECK-FP: .cfi_endproc
; CHECK-FP-ELIM-LABEL: _Z4testiiiiiddddd:
; CHECK-FP-ELIM: .cfi_startproc
; CHECK-FP-ELIM: push {r4, r5, r6, r7, r8, r9, r10, r11, lr}
; CHECK-FP-ELIM: .cfi_def_cfa_offset 36
; CHECK-FP-ELIM: .cfi_offset lr, -4
; CHECK-FP-ELIM: .cfi_offset r11, -8
; CHECK-FP-ELIM: .cfi_offset r10, -12
; CHECK-FP-ELIM: .cfi_offset r9, -16
; CHECK-FP-ELIM: .cfi_offset r8, -20
; CHECK-FP-ELIM: .cfi_offset r7, -24
; CHECK-FP-ELIM: .cfi_offset r6, -28
; CHECK-FP-ELIM: .cfi_offset r5, -32
; CHECK-FP-ELIM: .cfi_offset r4, -36
; CHECK-FP-ELIM: sub sp, sp, #36
; CHECK-FP-ELIM: .cfi_def_cfa_offset 72
; CHECK-FP-ELIM: .cfi_endproc
; CHECK-V7-FP-LABEL: _Z4testiiiiiddddd:
; CHECK-V7-FP: .cfi_startproc
; CHECK-V7-FP: push {r4, r10, r11, lr}
; CHECK-V7-FP: .cfi_def_cfa_offset 16
; CHECK-V7-FP: .cfi_offset lr, -4
; CHECK-V7-FP: .cfi_offset r11, -8
; CHECK-V7-FP: .cfi_offset r10, -12
; CHECK-V7-FP: .cfi_offset r4, -16
; CHECK-V7-FP: add r11, sp, #8
; CHECK-V7-FP: .cfi_def_cfa r11, 8
; CHECK-V7-FP: vpush {d8, d9, d10, d11, d12}
; CHECK-V7-FP: .cfi_offset d12, -24
; CHECK-V7-FP: .cfi_offset d11, -32
; CHECK-V7-FP: .cfi_offset d10, -40
; CHECK-V7-FP: .cfi_offset d9, -48
; CHECK-V7-FP: .cfi_offset d8, -56
; CHECK-V7-FP: sub sp, sp, #24
; CHECK-V7-FP: .cfi_endproc
; CHECK-V7-FP-ELIM-LABEL: _Z4testiiiiiddddd:
; CHECK-V7-FP-ELIM: .cfi_startproc
; CHECK-V7-FP-ELIM: push {r4, lr}
; CHECK-V7-FP-ELIM: .cfi_def_cfa_offset 8
; CHECK-V7-FP-ELIM: .cfi_offset lr, -4
; CHECK-V7-FP-ELIM: .cfi_offset r4, -8
; CHECK-V7-FP-ELIM: vpush {d8, d9, d10, d11, d12}
; CHECK-V7-FP-ELIM: .cfi_def_cfa_offset 48
; CHECK-V7-FP-ELIM: .cfi_offset d12, -16
; CHECK-V7-FP-ELIM: .cfi_offset d11, -24
; CHECK-V7-FP-ELIM: .cfi_offset d10, -32
; CHECK-V7-FP-ELIM: .cfi_offset d9, -40
; CHECK-V7-FP-ELIM: .cfi_offset d8, -48
; CHECK-V7-FP-ELIM: sub sp, sp, #24
; CHECK-V7-FP-ELIM: .cfi_def_cfa_offset 72
; CHECK-V7-FP-ELIM: .cfi_endproc
; CHECK-THUMB-FP-LABEL: _Z4testiiiiiddddd:
; CHECK-THUMB-FP: .cfi_startproc
; CHECK-THUMB-FP: push {r4, r5, r6, r7, lr}
; CHECK-THUMB-FP: .cfi_def_cfa_offset 20
; CHECK-THUMB-FP: .cfi_offset lr, -4
; CHECK-THUMB-FP: .cfi_offset r7, -8
; CHECK-THUMB-FP: .cfi_offset r6, -12
; CHECK-THUMB-FP: .cfi_offset r5, -16
; CHECK-THUMB-FP: .cfi_offset r4, -20
; CHECK-THUMB-FP: add r7, sp, #12
; CHECK-THUMB-FP: .cfi_def_cfa r7, 8
; CHECK-THUMB-FP: sub sp, #60
; CHECK-THUMB-FP: .cfi_endproc
; CHECK-THUMB-FP-ELIM-LABEL: _Z4testiiiiiddddd:
; CHECK-THUMB-FP-ELIM: .cfi_startproc
; CHECK-THUMB-FP-ELIM: push {r4, r5, r6, r7, lr}
; CHECK-THUMB-FP-ELIM: .cfi_def_cfa_offset 20
; CHECK-THUMB-FP-ELIM: .cfi_offset lr, -4
; CHECK-THUMB-FP-ELIM: .cfi_offset r7, -8
; CHECK-THUMB-FP-ELIM: .cfi_offset r6, -12
; CHECK-THUMB-FP-ELIM: .cfi_offset r5, -16
; CHECK-THUMB-FP-ELIM: .cfi_offset r4, -20
; CHECK-THUMB-FP-ELIM: sub sp, #52
; CHECK-THUMB-FP-ELIM: .cfi_def_cfa_offset 72
; CHECK-THUMB-FP-ELIM: .cfi_endproc
; CHECK-THUMB-V7-FP-LABEL: _Z4testiiiiiddddd:
; CHECK-THUMB-V7-FP: .cfi_startproc
; CHECK-THUMB-V7-FP: push {r4, r6, r7, lr}
; CHECK-THUMB-V7-FP: .cfi_def_cfa_offset 16
; CHECK-THUMB-V7-FP: .cfi_offset lr, -4
; CHECK-THUMB-V7-FP: .cfi_offset r7, -8
; CHECK-THUMB-V7-FP: .cfi_offset r6, -12
; CHECK-THUMB-V7-FP: .cfi_offset r4, -16
; CHECK-THUMB-V7-FP: add r7, sp, #8
; CHECK-THUMB-V7-FP: .cfi_def_cfa r7, 8
; CHECK-THUMB-V7-FP: vpush {d8, d9, d10, d11, d12}
; CHECK-THUMB-V7-FP: .cfi_offset d12, -24
; CHECK-THUMB-V7-FP: .cfi_offset d11, -32
; CHECK-THUMB-V7-FP: .cfi_offset d10, -40
; CHECK-THUMB-V7-FP: .cfi_offset d9, -48
; CHECK-THUMB-V7-FP: .cfi_offset d8, -56
; CHECK-THUMB-V7-FP: sub sp, #24
; CHECK-THUMB-V7-FP: .cfi_endproc
; CHECK-THUMB-V7-FP-ELIM-LABEL: _Z4testiiiiiddddd:
; CHECK-THUMB-V7-FP-ELIM: .cfi_startproc
; CHECK-THUMB-V7-FP-ELIM: push {r4, lr}
; CHECK-THUMB-V7-FP-ELIM: .cfi_def_cfa_offset 8
; CHECK-THUMB-V7-FP-ELIM: .cfi_offset lr, -4
; CHECK-THUMB-V7-FP-ELIM: .cfi_offset r4, -8
; CHECK-THUMB-V7-FP-ELIM: vpush {d8, d9, d10, d11, d12}
; CHECK-THUMB-V7-FP-ELIM: .cfi_def_cfa_offset 48
; CHECK-THUMB-V7-FP-ELIM: .cfi_offset d12, -16
; CHECK-THUMB-V7-FP-ELIM: .cfi_offset d11, -24
; CHECK-THUMB-V7-FP-ELIM: .cfi_offset d10, -32
; CHECK-THUMB-V7-FP-ELIM: .cfi_offset d9, -40
; CHECK-THUMB-V7-FP-ELIM: .cfi_offset d8, -48
; CHECK-THUMB-V7-FP-ELIM: sub sp, #24
; CHECK-THUMB-V7-FP-ELIM: .cfi_def_cfa_offset 72
; CHECK-THUMB-V7-FP-ELIM: .cfi_endproc
; CHECK-THUMB-V7-FP-NOIAS-LABEL: _Z4testiiiiiddddd:
; CHECK-THUMB-V7-FP-NOIAS: .cfi_startproc
; CHECK-THUMB-V7-FP-NOIAS: push {r4, r6, r7, lr}
; CHECK-THUMB-V7-FP-NOIAS: .cfi_def_cfa_offset 16
; CHECK-THUMB-V7-FP-NOIAS: .cfi_offset 14, -4
; CHECK-THUMB-V7-FP-NOIAS: .cfi_offset 7, -8
; CHECK-THUMB-V7-FP-NOIAS: .cfi_offset 6, -12
; CHECK-THUMB-V7-FP-NOIAS: .cfi_offset 4, -16
; CHECK-THUMB-V7-FP-NOIAS: add r7, sp, #8
; CHECK-THUMB-V7-FP-NOIAS: .cfi_def_cfa 7, 8
; CHECK-THUMB-V7-FP-NOIAS: vpush {d8, d9, d10, d11, d12}
; CHECK-THUMB-V7-FP-NOIAS: .cfi_offset 268, -24
; CHECK-THUMB-V7-FP-NOIAS: .cfi_offset 267, -32
; CHECK-THUMB-V7-FP-NOIAS: .cfi_offset 266, -40
; CHECK-THUMB-V7-FP-NOIAS: .cfi_offset 265, -48
; CHECK-THUMB-V7-FP-NOIAS: .cfi_offset 264, -56
; CHECK-THUMB-V7-FP-NOIAS: sub sp, #24
; CHECK-THUMB-V7-FP-NOIAS: .cfi_endproc
;-------------------------------------------------------------------------------
; Test 2
;-------------------------------------------------------------------------------
declare void @throw_exception_2()
define void @test2() {
entry:
call void @throw_exception_2()
ret void
}
; CHECK-FP-LABEL: test2:
; CHECK-FP: .cfi_startproc
; CHECK-FP: push {r11, lr}
; CHECK-FP: .cfi_def_cfa_offset 8
; CHECK-FP: .cfi_offset lr, -4
; CHECK-FP: .cfi_offset r11, -8
; CHECK-FP: mov r11, sp
; CHECK-FP: .cfi_def_cfa_register r11
; CHECK-FP: pop {r11, lr}
; CHECK-FP: mov pc, lr
; CHECK-FP: .cfi_endproc
; CHECK-FP-ELIM-LABEL: test2:
; CHECK-FP-ELIM: .cfi_startproc
; CHECK-FP-ELIM: push {r11, lr}
; CHECK-FP-ELIM: .cfi_def_cfa_offset 8
; CHECK-FP-ELIM: .cfi_offset lr, -4
; CHECK-FP-ELIM: .cfi_offset r11, -8
; CHECK-FP-ELIM: pop {r11, lr}
; CHECK-FP-ELIM: mov pc, lr
; CHECK-FP-ELIM: .cfi_endproc
; CHECK-V7-FP-LABEL: test2:
; CHECK-V7-FP: .cfi_startproc
; CHECK-V7-FP: push {r11, lr}
; CHECK-V7-FP: .cfi_def_cfa_offset 8
; CHECK-V7-FP: .cfi_offset lr, -4
; CHECK-V7-FP: .cfi_offset r11, -8
; CHECK-V7-FP: mov r11, sp
; CHECK-V7-FP: .cfi_def_cfa_register r11
; CHECK-V7-FP: pop {r11, pc}
; CHECK-V7-FP: .cfi_endproc
; CHECK-V7-FP-ELIM-LABEL: test2:
; CHECK-V7-FP-ELIM: .cfi_startproc
; CHECK-V7-FP-ELIM: push {r11, lr}
; CHECK-V7-FP-ELIM: .cfi_def_cfa_offset 8
; CHECK-V7-FP-ELIM: .cfi_offset lr, -4
; CHECK-V7-FP-ELIM: .cfi_offset r11, -8
; CHECK-V7-FP-ELIM: pop {r11, pc}
; CHECK-V7-FP-ELIM: .cfi_endproc
; CHECK-THUMB-FP-LABEL: test2:
; CHECK-THUMB-FP: .cfi_startproc
; CHECK-THUMB-FP: push {r7, lr}
; CHECK-THUMB-FP: .cfi_def_cfa_offset 8
; CHECK-THUMB-FP: .cfi_offset lr, -4
; CHECK-THUMB-FP: .cfi_offset r7, -8
; CHECK-THUMB-FP: add r7, sp, #0
; CHECK-THUMB-FP: .cfi_def_cfa_register r7
; CHECK-THUMB-FP: pop {r7, pc}
; CHECK-THUMB-FP: .cfi_endproc
; CHECK-THUMB-FP-ELIM-LABEL: test2:
; CHECK-THUMB-FP-ELIM: .cfi_startproc
; CHECK-THUMB-FP-ELIM: push {r7, lr}
; CHECK-THUMB-FP-ELIM: .cfi_def_cfa_offset 8
; CHECK-THUMB-FP-ELIM: .cfi_offset lr, -4
; CHECK-THUMB-FP-ELIM: .cfi_offset r7, -8
; CHECK-THUMB-FP-ELIM: pop {r7, pc}
; CHECK-THUMB-FP-ELIM: .cfi_endproc
; CHECK-THUMB-V7-FP-LABEL: test2:
; CHECK-THUMB-V7-FP: .cfi_startproc
; CHECK-THUMB-V7-FP: push {r7, lr}
; CHECK-THUMB-V7-FP: .cfi_def_cfa_offset 8
; CHECK-THUMB-V7-FP: .cfi_offset lr, -4
; CHECK-THUMB-V7-FP: .cfi_offset r7, -8
; CHECK-THUMB-V7-FP: mov r7, sp
; CHECK-THUMB-V7-FP: .cfi_def_cfa_register r7
; CHECK-THUMB-V7-FP: pop {r7, pc}
; CHECK-THUMB-V7-FP: .cfi_endproc
; CHECK-THUMB-V7-FP-ELIM-LABEL: test2:
; CHECK-THUMB-V7-FP-ELIM: .cfi_startproc
; CHECK-THUMB-V7-FP-ELIM: push {r7, lr}
; CHECK-THUMB-V7-FP-ELIM: .cfi_def_cfa_offset 8
; CHECK-THUMB-V7-FP-ELIM: .cfi_offset lr, -4
; CHECK-THUMB-V7-FP-ELIM: .cfi_offset r7, -8
; CHECK-THUMB-V7-FP-ELIM: pop {r7, pc}
; CHECK-THUMB-V7-FP-ELIM: .cfi_endproc
;-------------------------------------------------------------------------------
; Test 3
;-------------------------------------------------------------------------------
declare void @throw_exception_3(i32)
define i32 @test3(i32 %a, i32 %b, i32 %c, i32 %d,
i32 %e, i32 %f, i32 %g, i32 %h) {
entry:
%add = add nsw i32 %b, %a
%add1 = add nsw i32 %add, %c
%add2 = add nsw i32 %add1, %d
tail call void @throw_exception_3(i32 %add2)
%add3 = add nsw i32 %f, %e
%add4 = add nsw i32 %add3, %g
%add5 = add nsw i32 %add4, %h
tail call void @throw_exception_3(i32 %add5)
%add6 = add nsw i32 %add5, %add2
ret i32 %add6
}
; CHECK-FP-LABEL: test3:
; CHECK-FP: .cfi_startproc
; CHECK-FP: push {r4, r5, r11, lr}
; CHECK-FP: .cfi_def_cfa_offset 16
; CHECK-FP: .cfi_offset lr, -4
; CHECK-FP: .cfi_offset r11, -8
; CHECK-FP: .cfi_offset r5, -12
; CHECK-FP: .cfi_offset r4, -16
; CHECK-FP: add r11, sp, #8
; CHECK-FP: .cfi_def_cfa r11, 8
; CHECK-FP: pop {r4, r5, r11, lr}
; CHECK-FP: mov pc, lr
; CHECK-FP: .cfi_endproc
; CHECK-FP-ELIM-LABEL: test3:
; CHECK-FP-ELIM: .cfi_startproc
; CHECK-FP-ELIM: push {r4, r5, r11, lr}
; CHECK-FP-ELIM: .cfi_def_cfa_offset 16
; CHECK-FP-ELIM: .cfi_offset lr, -4
; CHECK-FP-ELIM: .cfi_offset r11, -8
; CHECK-FP-ELIM: .cfi_offset r5, -12
; CHECK-FP-ELIM: .cfi_offset r4, -16
; CHECK-FP-ELIM: pop {r4, r5, r11, lr}
; CHECK-FP-ELIM: mov pc, lr
; CHECK-FP-ELIM: .cfi_endproc
; CHECK-V7-FP-LABEL: test3:
; CHECK-V7-FP: .cfi_startproc
; CHECK-V7-FP: push {r4, r5, r11, lr}
; CHECK-V7-FP: .cfi_def_cfa_offset 16
; CHECK-V7-FP: .cfi_offset lr, -4
; CHECK-V7-FP: .cfi_offset r11, -8
; CHECK-V7-FP: .cfi_offset r5, -12
; CHECK-V7-FP: .cfi_offset r4, -16
; CHECK-V7-FP: add r11, sp, #8
; CHECK-V7-FP: .cfi_def_cfa r11, 8
; CHECK-V7-FP: pop {r4, r5, r11, pc}
; CHECK-V7-FP: .cfi_endproc
; CHECK-V7-FP-ELIM-LABEL: test3:
; CHECK-V7-FP-ELIM: .cfi_startproc
; CHECK-V7-FP-ELIM: push {r4, r5, r11, lr}
; CHECK-V7-FP-ELIM: .cfi_def_cfa_offset 16
; CHECK-V7-FP-ELIM: .cfi_offset lr, -4
; CHECK-V7-FP-ELIM: .cfi_offset r11, -8
; CHECK-V7-FP-ELIM: .cfi_offset r5, -12
; CHECK-V7-FP-ELIM: .cfi_offset r4, -16
; CHECK-V7-FP-ELIM: pop {r4, r5, r11, pc}
; CHECK-V7-FP-ELIM: .cfi_endproc
; CHECK-THUMB-FP-LABEL: test3:
; CHECK-THUMB-FP: .cfi_startproc
; CHECK-THUMB-FP: push {r4, r5, r7, lr}
; CHECK-THUMB-FP: .cfi_def_cfa_offset 16
; CHECK-THUMB-FP: .cfi_offset lr, -4
; CHECK-THUMB-FP: .cfi_offset r7, -8
; CHECK-THUMB-FP: .cfi_offset r5, -12
; CHECK-THUMB-FP: .cfi_offset r4, -16
; CHECK-THUMB-FP: add r7, sp, #8
; CHECK-THUMB-FP: .cfi_def_cfa r7, 8
; CHECK-THUMB-FP: pop {r4, r5, r7, pc}
; CHECK-THUMB-FP: .cfi_endproc
; CHECK-THUMB-FP-ELIM-LABEL: test3:
; CHECK-THUMB-FP-ELIM: .cfi_startproc
; CHECK-THUMB-FP-ELIM: push {r4, r5, r7, lr}
; CHECK-THUMB-FP-ELIM: .cfi_def_cfa_offset 16
; CHECK-THUMB-FP-ELIM: .cfi_offset lr, -4
; CHECK-THUMB-FP-ELIM: .cfi_offset r7, -8
; CHECK-THUMB-FP-ELIM: .cfi_offset r5, -12
; CHECK-THUMB-FP-ELIM: .cfi_offset r4, -16
; CHECK-THUMB-FP-ELIM: pop {r4, r5, r7, pc}
; CHECK-THUMB-FP-ELIM: .cfi_endproc
; CHECK-THUMB-V7-FP-LABEL: test3:
; CHECK-THUMB-V7-FP: .cfi_startproc
; CHECK-THUMB-V7-FP: push {r4, r5, r7, lr}
; CHECK-THUMB-V7-FP: .cfi_def_cfa_offset 16
; CHECK-THUMB-V7-FP: .cfi_offset lr, -4
; CHECK-THUMB-V7-FP: .cfi_offset r7, -8
; CHECK-THUMB-V7-FP: .cfi_offset r5, -12
; CHECK-THUMB-V7-FP: .cfi_offset r4, -16
; CHECK-THUMB-V7-FP: add r7, sp, #8
; CHECK-THUMB-V7-FP: .cfi_def_cfa r7, 8
; CHECK-THUMB-V7-FP: pop {r4, r5, r7, pc}
; CHECK-THUMB-V7-FP: .cfi_endproc
; CHECK-THUMB-V7-FP-ELIM-LABEL: test3:
; CHECK-THUMB-V7-FP-ELIM: .cfi_startproc
; CHECK-THUMB-V7-FP-ELIM: push {r4, r5, r7, lr}
; CHECK-THUMB-V7-FP-ELIM: .cfi_def_cfa_offset 16
; CHECK-THUMB-V7-FP-ELIM: .cfi_offset lr, -4
; CHECK-THUMB-V7-FP-ELIM: .cfi_offset r7, -8
; CHECK-THUMB-V7-FP-ELIM: .cfi_offset r5, -12
; CHECK-THUMB-V7-FP-ELIM: .cfi_offset r4, -16
; CHECK-THUMB-V7-FP-ELIM: pop {r4, r5, r7, pc}
; CHECK-THUMB-V7-FP-ELIM: .cfi_endproc
;-------------------------------------------------------------------------------
; Test 4
;-------------------------------------------------------------------------------
define void @test4() nounwind {
entry:
ret void
}
; CHECK-FP-LABEL: test4:
; CHECK-FP: mov pc, lr
; CHECK-FP-NOT: .cfi_def_cfa_offset
; CHECK-FP-ELIM-LABEL: test4:
; CHECK-FP-ELIM: mov pc, lr
; CHECK-FP-ELIM-NOT: .cfi_def_cfa_offset
; CHECK-V7-FP-LABEL: test4:
; CHECK-V7-FP: bx lr
; CHECK-V7-FP-NOT: .cfi_def_cfa_offset
; CHECK-V7-FP-ELIM-LABEL: test4:
; CHECK-V7-FP-ELIM: bx lr
; CHECK-V7-FP-ELIM-NOT: .cfi_def_cfa_offset
; CHECK-THUMB-FP-LABEL: test4:
; CHECK-THUMB-FP: bx lr
; CHECK-THUMB-FP-NOT: .cfi_def_cfa_offset
; CHECK-THUMB-FP-ELIM-LABEL: test4:
; CHECK-THUMB-FP-ELIM: bx lr
; CHECK-THUMB-FP-ELIM-NOT: .cfi_def_cfa_offset
; CHECK-THUMB-V7-FP-LABEL: test4:
; CHECK-THUMB-V7-FP: bx lr
; CHECK-THUMB-V7-FP-NOT: .cfi_def_cfa_offset
; CHECK-THUMB-V7-FP-ELIM-LABEL: test4:
; CHECK-THUMB-V7-FP-ELIM: bx lr
; CHECK-THUMB-V7-FP-ELIM-NOT: .cfi_def_cfa_offset
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