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; RUN: llc < %s -march=arm64 | FileCheck %s
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
%divovf32 = type { i32, i1 }
declare %divovf32 @llvm.safe.sdiv.i32(i32, i32) nounwind readnone
declare %divovf32 @llvm.safe.udiv.i32(i32, i32) nounwind readnone
; CHECK-LABEL: sdiv32_results_unused
; CHECK: entry
; CHECK-NEXT: ret
define void @sdiv32_results_unused(i32 %x, i32 %y) {
entry:
%divr = call %divovf32 @llvm.safe.sdiv.i32(i32 %x, i32 %y)
ret void
}
; CHECK-LABEL: sdiv32_div_result_unused
; CHECK-NOT: sdiv{{[ ]}}
define i1 @sdiv32_div_result_unused(i32 %x, i32 %y) {
entry:
%divr = call %divovf32 @llvm.safe.sdiv.i32(i32 %x, i32 %y)
%bit = extractvalue %divovf32 %divr, 1
ret i1 %bit
}
; CHECK-LABEL: sdiv32_flag_result_unused
; CHECK-NOT: cb
; CHECK: sdiv{{[ ]}}
define i32 @sdiv32_flag_result_unused(i32 %x, i32 %y) {
entry:
%divr = call %divovf32 @llvm.safe.sdiv.i32(i32 %x, i32 %y)
%div = extractvalue %divovf32 %divr, 0
ret i32 %div
}
; CHECK-LABEL: sdiv32_result_returned
; CHECK: sdiv{{[ ]}}
define %divovf32 @sdiv32_result_returned(i32 %x, i32 %y) {
entry:
%divr = call %divovf32 @llvm.safe.sdiv.i32(i32 %x, i32 %y)
ret %divovf32 %divr
}
; CHECK-LABEL: sdiv32_trap_relinked
; CHECK-NOT: %div.divmin
; CHECK-NOT: %div.divz
define i32 @sdiv32_trap_relinked(i32 %x, i32 %y) {
entry:
%divr = call %divovf32 @llvm.safe.sdiv.i32(i32 %x, i32 %y)
%div = extractvalue %divovf32 %divr, 0
%bit = extractvalue %divovf32 %divr, 1
br i1 %bit, label %trap.bb, label %ok.bb
trap.bb:
ret i32 7
ok.bb:
ret i32 %div
}
; CHECK-LABEL: udiv32_results_unused
; CHECK: entry
; CHECK-NEXT: ret
define void @udiv32_results_unused(i32 %x, i32 %y) {
entry:
%divr = call %divovf32 @llvm.safe.udiv.i32(i32 %x, i32 %y)
ret void
}
; CHECK-LABEL: udiv32_div_result_unused
; CHECK-NOT: udiv{{[ ]}}
define i1 @udiv32_div_result_unused(i32 %x, i32 %y) {
entry:
%divr = call %divovf32 @llvm.safe.udiv.i32(i32 %x, i32 %y)
%bit = extractvalue %divovf32 %divr, 1
ret i1 %bit
}
; CHECK-LABEL: udiv32_flag_result_unused
; CHECK-NOT: cb
; CHECK: udiv{{[ ]}}
define i32 @udiv32_flag_result_unused(i32 %x, i32 %y) {
entry:
%divr = call %divovf32 @llvm.safe.udiv.i32(i32 %x, i32 %y)
%div = extractvalue %divovf32 %divr, 0
ret i32 %div
}
; CHECK-LABEL: udiv32_result_returned
; CHECK: udiv{{[ ]}}
define %divovf32 @udiv32_result_returned(i32 %x, i32 %y) {
entry:
%divr = call %divovf32 @llvm.safe.udiv.i32(i32 %x, i32 %y)
ret %divovf32 %divr
}
; CHECK-LABEL: udiv32_trap_relinked
; CHECK-NOT: %div.divz
define i32 @udiv32_trap_relinked(i32 %x, i32 %y) {
entry:
%divr = call %divovf32 @llvm.safe.udiv.i32(i32 %x, i32 %y)
%div = extractvalue %divovf32 %divr, 0
%bit = extractvalue %divovf32 %divr, 1
br i1 %bit, label %trap.bb, label %ok.bb
trap.bb:
ret i32 7
ok.bb:
ret i32 %div
}
!llvm.ident = !{!0}
!0 = metadata !{metadata !"clang version 3.5.0 "}
|
