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This patch (second of two patches) lowers the generic PowerPC vector entries to PowerPC subtarget-specific entries. For instance, the PowerPC generic entry 'cbrtd2_massv' is lowered to 'cbrtd2_P9' or Power9 subtarget. The first patch enables the vectorizer to recognize the IBM MASS vector library routines. This patch specifically adds support for recognizing the '-vector-library=MASSV' option, and defines mappings from IEEE standard scalar math functions to generic PowerPC MASS vector counterparts. For instance, the generic PowerPC MASS vector entry for double-precision 'cbrt' function is '__cbrtd2_massv' The overall support for MASS vector library is presented as such in two patches for ease of review. Patch by pjeeva01 (Jeeva P.) Differential Revision: https://reviews.llvm.org/D59883
30 lines
1.2 KiB
LLVM
30 lines
1.2 KiB
LLVM
; RUN: llc -verify-machineinstrs -mcpu=pwr9 < %s -mtriple=powerpc64le-unknown-linux-gnu -mattr=-power9-vector | FileCheck -check-prefixes=CHECK-PWR8,CHECK-ALL %s
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; RUN: llc -verify-machineinstrs -mcpu=pwr8 < %s -mtriple=powerpc64le-unknown-linux-gnu -mattr=+power9-vector | FileCheck -check-prefixes=CHECK-PWR9,CHECK-ALL %s
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declare <2 x double> @__cbrtd2_massv(<2 x double>)
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declare <4 x float> @__cbrtf4_massv(<4 x float>)
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; cbrt without the power9-vector attribute on the caller
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; check massv calls are correctly targeted for Power8
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define <2 x double> @cbrt_f64_massv_nopwr9(<2 x double> %opnd) #0 {
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; CHECK-ALL-LABEL: @cbrt_f64_massv_nopwr9
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; CHECK-PWR8: bl __cbrtd2_P8
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; CHECK-NOT: bl __cbrtd2_massv
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; CHECK-ALL: blr
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;
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%1 = call <2 x double> @__cbrtd2_massv(<2 x double> %opnd)
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ret <2 x double> %1
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}
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; cbrt with the power9-vector attribute on the caller
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; check massv calls are correctly targeted for Power9
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define <2 x double> @cbrt_f64_massv_pwr9(<2 x double> %opnd) #1 {
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; CHECK-ALL-LABEL: @cbrt_f64_massv_pwr9
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; CHECK-PWR9: bl __cbrtd2_P9
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; CHECK-NOT: bl __cbrtd2_massv
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; CHECK-ALL: blr
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;
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%1 = call <2 x double> @__cbrtd2_massv(<2 x double> %opnd)
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ret <2 x double> %1
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}
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