73 lines
2.3 KiB
LLVM
73 lines
2.3 KiB
LLVM
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; Check handling of the mftb instruction.
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; For CPUs 601 and pwr3, the mftb instruction should be emitted.
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; On all other CPUs (including generic, ppc, ppc64), the mfspr instruction
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; should be used instead. There should no longer be a deprecated warning
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; message emittedfor this instruction for any CPU.
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; RUN: llc -verify-machineinstrs -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr7 < %s 2>&1 \
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; RUN: | FileCheck %s --check-prefix=CHECK-MFSPR
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; RUN: llc -verify-machineinstrs -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr8 < %s 2>&1 \
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; RUN: | FileCheck %s --check-prefix=CHECK-MFSPR
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; RUN: llc -verify-machineinstrs -mtriple=powerpc64le-unknown-linux-gnu < %s 2>&1 \
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; RUN: | FileCheck %s --check-prefix=CHECK-MFSPR
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; RUN: llc -verify-machineinstrs -mtriple=powerpc-unknown-linux-gnu < %s 2>&1 \
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; RUN: | FileCheck %s --check-prefix=CHECK-MFSPR
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; RUN: llc -verify-machineinstrs -mtriple=powerpc-unknown-linux-gnu -mcpu=ppc < %s 2>&1 \
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; RUN: | FileCheck %s --check-prefix=CHECK-MFSPR
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; RUN: llc -verify-machineinstrs -mtriple=powerpc-unknown-linux-gnu -mcpu=601 < %s 2>&1 \
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; RUN: | FileCheck %s --check-prefix=CHECK-MFTB
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; RUN: llc -verify-machineinstrs -mtriple=powerpc-unknown-linux-gnu -mcpu=pwr3 < %s 2>&1 \
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; RUN: | FileCheck %s --check-prefix=CHECK-MFTB
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; CHECK-MFSPR-NOT: warning: deprecated
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; CHECK-MFTB-NOT: warning: deprecated
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define i32 @get_time() {
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%time = call i32 asm "mftb $0, 268", "=r"()
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ret i32 %time
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; CHECK-MFSPR-LABEL: @get_time
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; CHECK-MFSPR: mfspr 3, 268
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; CHECK-MFSPR: blr
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; CHECK-MFTB-LABEL: @get_time
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; CHECK-MFTB: mftb 3, 268
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; CHECK-MFTB: blr
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}
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define i32 @get_timeu() {
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%time = call i32 asm "mftb $0, 269", "=r"()
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ret i32 %time
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; CHECK-MFSPR-LABEL: @get_timeu
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; CHECK-MFSPR: mfspr 3, 269
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; CHECK-MFSPR: blr
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; CHECK-MFTB-LABEL: @get_timeu
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; CHECK-MFTB: mftbu 3
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; CHECK-MFTB: blr
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}
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define i32 @get_time_e() {
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%time = call i32 asm "mftb $0", "=r"()
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ret i32 %time
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; CHECK-MFSPR-LABEL: @get_time_e
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; CHECK-MFSPR: mfspr 3, 268
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; CHECK-MFSPR: blr
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; CHECK-MFTB-LABEL: @get_time_e
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; CHECK-MFTB: mftb 3, 268
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; CHECK-MFTB: blr
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}
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define i32 @get_timeu_e() {
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%time = call i32 asm "mftbu $0", "=r"()
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ret i32 %time
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; CHECK-MFSPR-LABEL: @get_timeu_e
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; CHECK-MFSPR: mfspr 3, 269
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; CHECK-MFSPR: blr
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; CHECK-MFTB-LABEL: @get_timeu_e
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; CHECK-MFTB: mftbu 3
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; CHECK-MFTB: blr
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}
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