forked from OSchip/llvm-project
306 lines
8.5 KiB
LLVM
306 lines
8.5 KiB
LLVM
; RUN: llc < %s -mtriple=i686-pc-linux | FileCheck %s -check-prefix=LINUX -check-prefix=CHECK
|
|
; RUN: llc < %s -mtriple=i686-apple-darwin | FileCheck %s -check-prefix=DARWIN -check-prefix=CHECK
|
|
|
|
declare i32 @__gxx_personality_v0(...)
|
|
declare void @good(i32 %a, i32 %b, i32 %c, i32 %d)
|
|
declare void @large(i32 %a, i32 %b, i32 %c, i32 %d, i32 %e, i32 %f)
|
|
declare void @empty()
|
|
|
|
; When we use an invoke, we expect a .cfi_escape GNU_ARGS_SIZE
|
|
; with size 16 before the invocation. Without FP, we also expect
|
|
; .cfi_adjust_cfa_offset after each push.
|
|
; Darwin should not generate pushes in either circumstance.
|
|
; CHECK-LABEL: test1_nofp:
|
|
; LINUX: .cfi_escape 0x2e, 0x10
|
|
; LINUX-NEXT: pushl $4
|
|
; LINUX-NEXT: Lcfi{{[0-9]+}}:
|
|
; LINUX-NEXT: .cfi_adjust_cfa_offset 4
|
|
; LINUX-NEXT: pushl $3
|
|
; LINUX-NEXT: Lcfi{{[0-9]+}}:
|
|
; LINUX-NEXT: .cfi_adjust_cfa_offset 4
|
|
; LINUX-NEXT: pushl $2
|
|
; LINUX-NEXT: Lcfi{{[0-9]+}}:
|
|
; LINUX-NEXT: .cfi_adjust_cfa_offset 4
|
|
; LINUX-NEXT: pushl $1
|
|
; LINUX-NEXT: Lcfi{{[0-9]+}}:
|
|
; LINUX-NEXT: .cfi_adjust_cfa_offset 4
|
|
; LINUX-NEXT: call
|
|
; LINUX-NEXT: addl $16, %esp
|
|
; LINUX: .cfi_adjust_cfa_offset -16
|
|
; DARWIN-NOT: .cfi_escape
|
|
; DARWIN-NOT: pushl
|
|
define void @test1_nofp() #0 personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
|
|
entry:
|
|
invoke void @good(i32 1, i32 2, i32 3, i32 4)
|
|
to label %continue unwind label %cleanup
|
|
continue:
|
|
ret void
|
|
cleanup:
|
|
landingpad { i8*, i32 }
|
|
cleanup
|
|
ret void
|
|
}
|
|
|
|
; CHECK-LABEL: test1_fp:
|
|
; LINUX: .cfi_escape 0x2e, 0x10
|
|
; LINUX-NEXT: pushl $4
|
|
; LINUX-NEXT: pushl $3
|
|
; LINUX-NEXT: pushl $2
|
|
; LINUX-NEXT: pushl $1
|
|
; LINUX-NEXT: call
|
|
; LINUX-NEXT: addl $16, %esp
|
|
; DARWIN: pushl %ebp
|
|
; DARWIN-NOT: .cfi_escape
|
|
; DARWIN-NOT: pushl
|
|
define void @test1_fp() #1 personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
|
|
entry:
|
|
invoke void @good(i32 1, i32 2, i32 3, i32 4)
|
|
to label %continue unwind label %cleanup
|
|
continue:
|
|
ret void
|
|
cleanup:
|
|
landingpad { i8*, i32 }
|
|
cleanup
|
|
ret void
|
|
}
|
|
|
|
; If the function has no handlers, we don't need to generate GNU_ARGS_SIZE,
|
|
; even if it has an unwind table. Without FP, we still need cfi_adjust_cfa_offset,
|
|
; so darwin should not generate pushes.
|
|
; CHECK-LABEL: test2_nofp:
|
|
; LINUX-NOT: .cfi_escape
|
|
; LINUX: pushl $4
|
|
; LINUX-NEXT: Lcfi{{[0-9]+}}:
|
|
; LINUX-NEXT: .cfi_adjust_cfa_offset 4
|
|
; LINUX-NEXT: pushl $3
|
|
; LINUX-NEXT: Lcfi{{[0-9]+}}:
|
|
; LINUX-NEXT: .cfi_adjust_cfa_offset 4
|
|
; LINUX-NEXT: pushl $2
|
|
; LINUX-NEXT: Lcfi{{[0-9]+}}:
|
|
; LINUX-NEXT: .cfi_adjust_cfa_offset 4
|
|
; LINUX-NEXT: pushl $1
|
|
; LINUX-NEXT: Lcfi{{[0-9]+}}:
|
|
; LINUX-NEXT: .cfi_adjust_cfa_offset 4
|
|
; LINUX-NEXT: call
|
|
; LINUX-NEXT: addl $16, %esp
|
|
; LINUX: .cfi_adjust_cfa_offset -16
|
|
; LINUX: addl $12, %esp
|
|
; DARWIN-NOT: .cfi_escape
|
|
; DARWIN-NOT: pushl
|
|
define void @test2_nofp() #0 personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
|
|
entry:
|
|
call void @good(i32 1, i32 2, i32 3, i32 4)
|
|
ret void
|
|
}
|
|
|
|
; CHECK-LABEL: test2_fp:
|
|
; CHECK-NOT: .cfi_escape
|
|
; CHECK-NOT: .cfi_adjust_cfa_offset
|
|
; CHECK: pushl $4
|
|
; CHECK-NEXT: pushl $3
|
|
; CHECK-NEXT: pushl $2
|
|
; CHECK-NEXT: pushl $1
|
|
; CHECK-NEXT: call
|
|
; CHECK-NEXT: addl $24, %esp
|
|
define void @test2_fp() #1 personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
|
|
entry:
|
|
call void @good(i32 1, i32 2, i32 3, i32 4)
|
|
ret void
|
|
}
|
|
|
|
; If we did not end up using any pushes, no need for GNU_ARGS_SIZE or
|
|
; cfi_adjust_cfa_offset.
|
|
; CHECK-LABEL: test3_nofp:
|
|
; LINUX-NOT: .cfi_escape
|
|
; LINUX-NOT: .cfi_adjust_cfa_offset
|
|
; LINUX-NOT: pushl
|
|
; LINUX: retl
|
|
define void @test3_nofp() #0 personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
|
|
entry:
|
|
invoke void @empty()
|
|
to label %continue unwind label %cleanup
|
|
continue:
|
|
ret void
|
|
cleanup:
|
|
landingpad { i8*, i32 }
|
|
cleanup
|
|
ret void
|
|
}
|
|
|
|
; If we did not end up using any pushes, no need for GNU_ARGS_SIZE or
|
|
; cfi_adjust_cfa_offset.
|
|
; CHECK-LABEL: test3_fp:
|
|
; LINUX: pushl %ebp
|
|
; LINUX-NOT: .cfi_escape
|
|
; LINUX-NOT: .cfi_adjust_cfa_offset
|
|
; LINUX-NOT: pushl
|
|
; LINUX: retl
|
|
define void @test3_fp() #1 personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
|
|
entry:
|
|
invoke void @empty()
|
|
to label %continue unwind label %cleanup
|
|
continue:
|
|
ret void
|
|
cleanup:
|
|
landingpad { i8*, i32 }
|
|
cleanup
|
|
ret void
|
|
}
|
|
|
|
; Different sized stacks need different GNU_ARGS_SIZEs
|
|
; CHECK-LABEL: test4:
|
|
; LINUX: .cfi_escape 0x2e, 0x10
|
|
; LINUX-NEXT: pushl $4
|
|
; LINUX-NEXT: pushl $3
|
|
; LINUX-NEXT: pushl $2
|
|
; LINUX-NEXT: pushl $1
|
|
; LINUX-NEXT: call
|
|
; LINUX-NEXT: addl $16, %esp
|
|
; LINUX: .cfi_escape 0x2e, 0x20
|
|
; LINUX: subl $8, %esp
|
|
; LINUX-NEXT: pushl $11
|
|
; LINUX-NEXT: pushl $10
|
|
; LINUX-NEXT: pushl $9
|
|
; LINUX-NEXT: pushl $8
|
|
; LINUX-NEXT: pushl $7
|
|
; LINUX-NEXT: pushl $6
|
|
; LINUX-NEXT: calll large
|
|
; LINUX-NEXT: addl $32, %esp
|
|
define void @test4() #1 personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
|
|
entry:
|
|
invoke void @good(i32 1, i32 2, i32 3, i32 4)
|
|
to label %continue1 unwind label %cleanup
|
|
continue1:
|
|
invoke void @large(i32 6, i32 7, i32 8, i32 9, i32 10, i32 11)
|
|
to label %continue2 unwind label %cleanup
|
|
continue2:
|
|
ret void
|
|
cleanup:
|
|
landingpad { i8*, i32 }
|
|
cleanup
|
|
ret void
|
|
}
|
|
|
|
; If we did use pushes, we need to reset GNU_ARGS_SIZE before a call
|
|
; without parameters, but don't need to adjust the cfa offset
|
|
; CHECK-LABEL: test5_nofp:
|
|
; LINUX: .cfi_escape 0x2e, 0x10
|
|
; LINUX-NEXT: pushl $4
|
|
; LINUX-NEXT: Lcfi{{[0-9]+}}:
|
|
; LINUX-NEXT: .cfi_adjust_cfa_offset 4
|
|
; LINUX-NEXT: pushl $3
|
|
; LINUX-NEXT: Lcfi{{[0-9]+}}:
|
|
; LINUX-NEXT: .cfi_adjust_cfa_offset 4
|
|
; LINUX-NEXT: pushl $2
|
|
; LINUX-NEXT: Lcfi{{[0-9]+}}:
|
|
; LINUX-NEXT: .cfi_adjust_cfa_offset 4
|
|
; LINUX-NEXT: pushl $1
|
|
; LINUX-NEXT: Lcfi{{[0-9]+}}:
|
|
; LINUX-NEXT: .cfi_adjust_cfa_offset 4
|
|
; LINUX-NEXT: call
|
|
; LINUX-NEXT: addl $16, %esp
|
|
; LINUX: .cfi_adjust_cfa_offset -16
|
|
; LINUX-NOT: .cfi_adjust_cfa_offset
|
|
; LINUX: .cfi_escape 0x2e, 0x00
|
|
; LINUX-NOT: .cfi_adjust_cfa_offset
|
|
; LINUX: call
|
|
define void @test5_nofp() #0 personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
|
|
entry:
|
|
invoke void @good(i32 1, i32 2, i32 3, i32 4)
|
|
to label %continue1 unwind label %cleanup
|
|
continue1:
|
|
invoke void @empty()
|
|
to label %continue2 unwind label %cleanup
|
|
continue2:
|
|
ret void
|
|
cleanup:
|
|
landingpad { i8*, i32 }
|
|
cleanup
|
|
ret void
|
|
}
|
|
|
|
; CHECK-LABEL: test5_fp:
|
|
; LINUX: .cfi_escape 0x2e, 0x10
|
|
; LINUX-NEXT: pushl $4
|
|
; LINUX-NEXT: pushl $3
|
|
; LINUX-NEXT: pushl $2
|
|
; LINUX-NEXT: pushl $1
|
|
; LINUX-NEXT: call
|
|
; LINUX-NEXT: addl $16, %esp
|
|
; LINUX: .cfi_escape 0x2e, 0x00
|
|
; LINUX-NOT: .cfi_adjust_cfa_offset
|
|
; LINUX: call
|
|
define void @test5_fp() #1 personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
|
|
entry:
|
|
invoke void @good(i32 1, i32 2, i32 3, i32 4)
|
|
to label %continue1 unwind label %cleanup
|
|
continue1:
|
|
invoke void @empty()
|
|
to label %continue2 unwind label %cleanup
|
|
continue2:
|
|
ret void
|
|
cleanup:
|
|
landingpad { i8*, i32 }
|
|
cleanup
|
|
ret void
|
|
}
|
|
|
|
; FIXME: This is actually inefficient - we don't need to repeat the .cfi_escape twice.
|
|
; CHECK-LABEL: test6:
|
|
; LINUX: .cfi_escape 0x2e, 0x10
|
|
; LINUX: call
|
|
; LINUX: .cfi_escape 0x2e, 0x10
|
|
; LINUX: call
|
|
define void @test6() #1 personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
|
|
entry:
|
|
invoke void @good(i32 1, i32 2, i32 3, i32 4)
|
|
to label %continue1 unwind label %cleanup
|
|
continue1:
|
|
invoke void @good(i32 5, i32 6, i32 7, i32 8)
|
|
to label %continue2 unwind label %cleanup
|
|
continue2:
|
|
ret void
|
|
cleanup:
|
|
landingpad { i8*, i32 }
|
|
cleanup
|
|
ret void
|
|
}
|
|
|
|
; Darwin should generate pushes in the presense of FP and an unwind table,
|
|
; but not FP and invoke.
|
|
; CHECK-LABEL: test7:
|
|
; DARWIN: pushl %ebp
|
|
; DARWIN: movl %esp, %ebp
|
|
; DARWIN: .cfi_def_cfa_register %ebp
|
|
; DARWIN-NOT: .cfi_adjust_cfa_offset
|
|
; DARWIN: pushl $4
|
|
; DARWIN-NEXT: pushl $3
|
|
; DARWIN-NEXT: pushl $2
|
|
; DARWIN-NEXT: pushl $1
|
|
; DARWIN-NEXT: call
|
|
define void @test7() #1 personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
|
|
entry:
|
|
call void @good(i32 1, i32 2, i32 3, i32 4)
|
|
ret void
|
|
}
|
|
|
|
; CHECK-LABEL: test8:
|
|
; DARWIN: pushl %ebp
|
|
; DARWIN: movl %esp, %ebp
|
|
; DARWIN-NOT: .cfi_adjust_cfa_offset
|
|
; DARWIN-NOT: pushl
|
|
define void @test8() #1 personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
|
|
entry:
|
|
invoke void @good(i32 1, i32 2, i32 3, i32 4)
|
|
to label %continue unwind label %cleanup
|
|
continue:
|
|
ret void
|
|
cleanup:
|
|
landingpad { i8*, i32 }
|
|
cleanup
|
|
ret void
|
|
}
|
|
|
|
attributes #0 = { optsize }
|
|
attributes #1 = { optsize "no-frame-pointer-elim"="true" }
|