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https://github.com/c64scene-ar/llvm-6502.git
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84 lines
2.1 KiB
LLVM
84 lines
2.1 KiB
LLVM
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; RUN: llc < %s -march=arm64 | FileCheck %s
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target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
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%divovf32 = type { i32, i1 }
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declare %divovf32 @llvm.safe.sdiv.i32(i32, i32) nounwind readnone
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declare %divovf32 @llvm.safe.udiv.i32(i32, i32) nounwind readnone
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; CHECK-LABEL: sdiv32_results_unused
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; CHECK: entry
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; CHECK-NEXT: ret
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define void @sdiv32_results_unused(i32 %x, i32 %y) {
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entry:
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%divr = call %divovf32 @llvm.safe.sdiv.i32(i32 %x, i32 %y)
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ret void
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}
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; CHECK-LABEL: sdiv32_div_result_unused
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; CHECK-NOT: sdiv{{[ ]}}
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define i1 @sdiv32_div_result_unused(i32 %x, i32 %y) {
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entry:
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%divr = call %divovf32 @llvm.safe.sdiv.i32(i32 %x, i32 %y)
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%bit = extractvalue %divovf32 %divr, 1
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ret i1 %bit
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}
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; CHECK-LABEL: sdiv32_flag_result_unused
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; CHECK-NOT: cb
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; CHECK: sdiv{{[ ]}}
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define i32 @sdiv32_flag_result_unused(i32 %x, i32 %y) {
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entry:
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%divr = call %divovf32 @llvm.safe.sdiv.i32(i32 %x, i32 %y)
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%div = extractvalue %divovf32 %divr, 0
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ret i32 %div
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}
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; CHECK-LABEL: sdiv32_result_returned
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; CHECK: sdiv{{[ ]}}
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define %divovf32 @sdiv32_result_returned(i32 %x, i32 %y) {
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entry:
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%divr = call %divovf32 @llvm.safe.sdiv.i32(i32 %x, i32 %y)
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ret %divovf32 %divr
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}
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; CHECK-LABEL: udiv32_results_unused
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; CHECK: entry
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; CHECK-NEXT: ret
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define void @udiv32_results_unused(i32 %x, i32 %y) {
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entry:
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%divr = call %divovf32 @llvm.safe.udiv.i32(i32 %x, i32 %y)
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ret void
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}
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; CHECK-LABEL: udiv32_div_result_unused
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; CHECK-NOT: udiv{{[ ]}}
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define i1 @udiv32_div_result_unused(i32 %x, i32 %y) {
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entry:
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%divr = call %divovf32 @llvm.safe.udiv.i32(i32 %x, i32 %y)
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%bit = extractvalue %divovf32 %divr, 1
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ret i1 %bit
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}
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; CHECK-LABEL: udiv32_flag_result_unused
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; CHECK-NOT: cb
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; CHECK: udiv{{[ ]}}
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define i32 @udiv32_flag_result_unused(i32 %x, i32 %y) {
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entry:
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%divr = call %divovf32 @llvm.safe.udiv.i32(i32 %x, i32 %y)
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%div = extractvalue %divovf32 %divr, 0
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ret i32 %div
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}
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; CHECK-LABEL: udiv32_result_returned
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; CHECK: udiv{{[ ]}}
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define %divovf32 @udiv32_result_returned(i32 %x, i32 %y) {
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entry:
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%divr = call %divovf32 @llvm.safe.udiv.i32(i32 %x, i32 %y)
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ret %divovf32 %divr
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}
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!llvm.ident = !{!0}
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!0 = metadata !{metadata !"clang version 3.5.0 "}
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