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|
; ARM EHABI integrated test
; This test case checks whether the ARM unwind directives are properly
; generated or not.
; The purpose of the test:
; (1) .fnstart and .fnend directives should wrap the function.
; (2) .setfp directive should be available if frame pointer is not eliminated.
; (3) .save directive should come with push instruction.
; (4) .vsave directive should come with vpush instruction.
; (5) .pad directive should come with stack pointer adjustment.
; (6) .cantunwind directive should be available if the function is marked with
; nounwind function attribute.
; We have to check several cases:
; (1) arm with -disable-fp-elim
; (2) arm without -disable-fp-elim
; (3) armv7 with -disable-fp-elim
; (4) armv7 without -disable-fp-elim
; RUN: llc -mtriple arm-unknown-linux-gnueabi \
; RUN: -disable-fp-elim -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: -disable-fp-elim -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
;-------------------------------------------------------------------------------
; 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) {
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 }
personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
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 }
personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
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 }
personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
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()
; CHECK-FP-LABEL: _Z4testiiiiiddddd:
; CHECK-FP: .fnstart
; CHECK-FP: .save {r4, r5, r6, r7, r8, r9, r10, r11, lr}
; CHECK-FP: push {r4, r5, r6, r7, r8, r9, r10, r11, lr}
; CHECK-FP: .setfp r11, sp, #28
; CHECK-FP: add r11, sp, #28
; CHECK-FP: .pad #28
; CHECK-FP: sub sp, sp, #28
; CHECK-FP: .personality __gxx_personality_v0
; CHECK-FP: .handlerdata
; CHECK-FP: .fnend
; CHECK-FP-ELIM-LABEL: _Z4testiiiiiddddd:
; CHECK-FP-ELIM: .fnstart
; CHECK-FP-ELIM: .save {r4, r5, r6, r7, r8, r9, r10, r11, lr}
; CHECK-FP-ELIM: push {r4, r5, r6, r7, r8, r9, r10, r11, lr}
; CHECK-FP-ELIM: .pad #28
; CHECK-FP-ELIM: sub sp, sp, #28
; CHECK-FP-ELIM: .personality __gxx_personality_v0
; CHECK-FP-ELIM: .handlerdata
; CHECK-FP-ELIM: .fnend
; CHECK-V7-FP-LABEL: _Z4testiiiiiddddd:
; CHECK-V7-FP: .fnstart
; CHECK-V7-FP: .save {r4, r11, lr}
; CHECK-V7-FP: push {r4, r11, lr}
; CHECK-V7-FP: .setfp r11, sp, #4
; CHECK-V7-FP: add r11, sp, #4
; CHECK-V7-FP: .vsave {d8, d9, d10, d11, d12}
; CHECK-V7-FP: vpush {d8, d9, d10, d11, d12}
; CHECK-V7-FP: .pad #28
; CHECK-V7-FP: sub sp, sp, #28
; CHECK-V7-FP: .personality __gxx_personality_v0
; CHECK-V7-FP: .handlerdata
; CHECK-V7-FP: .fnend
; CHECK-V7-FP-ELIM-LABEL: _Z4testiiiiiddddd:
; CHECK-V7-FP-ELIM: .fnstart
; CHECK-V7-FP-ELIM: .save {r4, lr}
; CHECK-V7-FP-ELIM: push {r4, lr}
; CHECK-V7-FP-ELIM: .vsave {d8, d9, d10, d11, d12}
; CHECK-V7-FP-ELIM: vpush {d8, d9, d10, d11, d12}
; CHECK-V7-FP-ELIM: .pad #24
; CHECK-V7-FP-ELIM: sub sp, sp, #24
; CHECK-V7-FP-ELIM: .personality __gxx_personality_v0
; CHECK-V7-FP-ELIM: .handlerdata
; CHECK-V7-FP-ELIM: .fnend
;-------------------------------------------------------------------------------
; Test 2
;-------------------------------------------------------------------------------
declare void @throw_exception_2()
define void @test2() {
entry:
tail call void @throw_exception_2()
ret void
}
; CHECK-FP-LABEL: test2:
; CHECK-FP: .fnstart
; CHECK-FP: .save {r11, lr}
; CHECK-FP: push {r11, lr}
; CHECK-FP: .setfp r11, sp
; CHECK-FP: mov r11, sp
; CHECK-FP: pop {r11, lr}
; CHECK-FP: mov pc, lr
; CHECK-FP: .fnend
; CHECK-FP-ELIM-LABEL: test2:
; CHECK-FP-ELIM: .fnstart
; CHECK-FP-ELIM: .save {r11, lr}
; CHECK-FP-ELIM: push {r11, lr}
; CHECK-FP-ELIM: pop {r11, lr}
; CHECK-FP-ELIM: mov pc, lr
; CHECK-FP-ELIM: .fnend
; CHECK-V7-FP-LABEL: test2:
; CHECK-V7-FP: .fnstart
; CHECK-V7-FP: .save {r11, lr}
; CHECK-V7-FP: push {r11, lr}
; CHECK-V7-FP: .setfp r11, sp
; CHECK-V7-FP: mov r11, sp
; CHECK-V7-FP: pop {r11, pc}
; CHECK-V7-FP: .fnend
; CHECK-V7-FP-ELIM-LABEL: test2:
; CHECK-V7-FP-ELIM: .fnstart
; CHECK-V7-FP-ELIM: .save {r11, lr}
; CHECK-V7-FP-ELIM: push {r11, lr}
; CHECK-V7-FP-ELIM: pop {r11, pc}
; CHECK-V7-FP-ELIM: .fnend
;-------------------------------------------------------------------------------
; 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: .fnstart
; CHECK-FP: .save {r4, r5, r11, lr}
; CHECK-FP: push {r4, r5, r11, lr}
; CHECK-FP: .setfp r11, sp, #8
; CHECK-FP: add r11, sp, #8
; CHECK-FP: pop {r4, r5, r11, lr}
; CHECK-FP: mov pc, lr
; CHECK-FP: .fnend
; CHECK-FP-ELIM-LABEL: test3:
; CHECK-FP-ELIM: .fnstart
; CHECK-FP-ELIM: .save {r4, r5, r11, lr}
; CHECK-FP-ELIM: push {r4, r5, r11, lr}
; CHECK-FP-ELIM: pop {r4, r5, r11, lr}
; CHECK-FP-ELIM: mov pc, lr
; CHECK-FP-ELIM: .fnend
; CHECK-V7-FP-LABEL: test3:
; CHECK-V7-FP: .fnstart
; CHECK-V7-FP: .save {r4, r5, r11, lr}
; CHECK-V7-FP: push {r4, r5, r11, lr}
; CHECK-V7-FP: .setfp r11, sp, #8
; CHECK-V7-FP: add r11, sp, #8
; CHECK-V7-FP: pop {r4, r5, r11, pc}
; CHECK-V7-FP: .fnend
; CHECK-V7-FP-ELIM-LABEL: test3:
; CHECK-V7-FP-ELIM: .fnstart
; CHECK-V7-FP-ELIM: .save {r4, r5, r11, lr}
; CHECK-V7-FP-ELIM: push {r4, r5, r11, lr}
; CHECK-V7-FP-ELIM: pop {r4, r5, r11, pc}
; CHECK-V7-FP-ELIM: .fnend
;-------------------------------------------------------------------------------
; Test 4
;-------------------------------------------------------------------------------
define void @test4() nounwind {
entry:
ret void
}
; CHECK-FP-LABEL: test4:
; CHECK-FP: .fnstart
; CHECK-FP: mov pc, lr
; CHECK-FP: .cantunwind
; CHECK-FP: .fnend
; CHECK-FP-ELIM-LABEL: test4:
; CHECK-FP-ELIM: .fnstart
; CHECK-FP-ELIM: mov pc, lr
; CHECK-FP-ELIM: .cantunwind
; CHECK-FP-ELIM: .fnend
; CHECK-V7-FP-LABEL: test4:
; CHECK-V7-FP: .fnstart
; CHECK-V7-FP: bx lr
; CHECK-V7-FP: .cantunwind
; CHECK-V7-FP: .fnend
; CHECK-V7-FP-ELIM-LABEL: test4:
; CHECK-V7-FP-ELIM: .fnstart
; CHECK-V7-FP-ELIM: bx lr
; CHECK-V7-FP-ELIM: .cantunwind
; CHECK-V7-FP-ELIM: .fnend
|
