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llvm-mirror/test/CodeGen/PowerPC/Frames-dyn-alloca.ll

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[AIX] Enable frame pointer for AIX and add related test suite This patch: - enable frame pointer for AIX; - update some of red zone comments; - add/update testcases; Differential Revision: https://reviews.llvm.org/D72454
2020-02-10 19:52:08 +01:00
; RUN: llc < %s -mtriple=powerpc-unknown-linux-gnu | FileCheck %s -check-prefix=PPC32-LINUX
; RUN: llc < %s -mtriple=powerpc64-unknown-linux-gnu | FileCheck %s -check-prefix=PPC64-LINUX
; RUN: llc < %s -mtriple=powerpc-unknown-linux-gnu -frame-pointer=all | FileCheck %s -check-prefix=PPC32-LINUX
; RUN: llc < %s -mtriple=powerpc64-unknown-linux-gnu -frame-pointer=all | FileCheck %s -check-prefix=PPC64-LINUX
; RUN: llc < %s -mtriple=powerpc-unknown-linux-gnu | FileCheck %s -check-prefix=PPC32-LINUX
; RUN: llc < %s -mcpu=pwr4 -mattr=-altivec -verify-machineinstrs \
; RUN: -mtriple=powerpc-ibm-aix-xcoff | FileCheck %s -check-prefix=PPC32-AIX
; RUN: llc < %s -mcpu=pwr4 -mattr=-altivec -verify-machineinstrs \
; RUN: -mtriple=powerpc-ibm-aix-xcoff -frame-pointer=all | FileCheck %s \
; RUN: -check-prefix=PPC32-AIX
; RUN: llc < %s -mcpu=pwr4 -mattr=-altivec -verify-machineinstrs \
; RUN: -mtriple=powerpc64-ibm-aix-xcoff | FileCheck %s -check-prefix=PPC64-AIX
; RUN: llc < %s -mcpu=pwr4 -mattr=-altivec -verify-machineinstrs \
; RUN: -mtriple=powerpc64-ibm-aix-xcoff -frame-pointer=all | FileCheck %s \
; RUN: -check-prefix=PPC64-AIX
define i32* @f1(i32 %n) nounwind {
%tmp = alloca i32, i32 %n ; <i32*> [#uses=1]
ret i32* %tmp
}
; PPC32-LINUX-LABEL: f1
; PPC32-LINUX: stwu 1, -32(1)
; PPC32-LINUX-NEXT: slwi 3, 3, 2
; PPC32-LINUX-NEXT: addi 3, 3, 15
; PPC32-LINUX-NEXT: stw 31, 28(1)
; PPC32-LINUX-NEXT: mr 31, 1
; PPC32-LINUX-NEXT: rlwinm 3, 3, 0, 0, 27
; PPC32-LINUX-NEXT: neg 3, 3
; PPC32-LINUX-NEXT: addi 4, 31, 32
; PPC32-LINUX-NEXT: stwux 4, 1, 3
; PPC32-LINUX-NEXT: lwz 31, 0(1)
; PPC32-LINUX-NEXT: addi 3, 1, 16
; PPC32-LINUX-NEXT: lwz 0, -4(31)
; PPC32-LINUX-NEXT: mr 1, 31
; PPC32-LINUX-NEXT: mr 31, 0
; PPC32-LINUX-NEXT: blr
; PPC64-LINUX-LABEL: f1
; PPC64-LINUX: std 31, -8(1)
; PPC64-LINUX-NEXT: stdu 1, -64(1)
; PPC64-LINUX-NEXT: rldic 3, 3, 2, 30
; PPC64-LINUX-NEXT: mr 31, 1
[PowerPC] Exploit the rldicl + rldicl when and with mask If we are and the constant like 0xFFFFFFC00000, for now, we are using several instructions to generate this 48bit constant and final an "and". However, we could exploit it with two rotate instructions. MB ME MB+63-ME +----------------------+ +----------------------+ |0000001111111111111000| -> |0000000001111111111111| +----------------------+ +----------------------+ 0 63 0 63 Rotate left ME + 1 bit first, and then, mask it with (MB + 63 - ME, 63), finally, rotate back. Notice that, we need to round it with 64 bit for the wrapping case. Reviewed by: ChenZheng, Nemanjai Differential Revision: https://reviews.llvm.org/D71831
2020-04-17 07:24:00 +02:00
; PPC64-LINUX-NEXT: addi 3, 3, 15
; PPC64-LINUX-NEXT: rldicl 3, 3, 60, 4
[AIX] Enable frame pointer for AIX and add related test suite This patch: - enable frame pointer for AIX; - update some of red zone comments; - add/update testcases; Differential Revision: https://reviews.llvm.org/D72454
2020-02-10 19:52:08 +01:00
; PPC64-LINUX-NEXT: addi 4, 31, 64
[PowerPC] Exploit the rldicl + rldicl when and with mask If we are and the constant like 0xFFFFFFC00000, for now, we are using several instructions to generate this 48bit constant and final an "and". However, we could exploit it with two rotate instructions. MB ME MB+63-ME +----------------------+ +----------------------+ |0000001111111111111000| -> |0000000001111111111111| +----------------------+ +----------------------+ 0 63 0 63 Rotate left ME + 1 bit first, and then, mask it with (MB + 63 - ME, 63), finally, rotate back. Notice that, we need to round it with 64 bit for the wrapping case. Reviewed by: ChenZheng, Nemanjai Differential Revision: https://reviews.llvm.org/D71831
2020-04-17 07:24:00 +02:00
; PPC64-LINUX-NEXT: rldicl 3, 3, 4, 29
; PPC64-LINUX-NEXT: neg 3, 3
[AIX] Enable frame pointer for AIX and add related test suite This patch: - enable frame pointer for AIX; - update some of red zone comments; - add/update testcases; Differential Revision: https://reviews.llvm.org/D72454
2020-02-10 19:52:08 +01:00
; PPC64-LINUX-NEXT: stdux 4, 1, 3
; The linkage area is always put on the top of the stack.
; PPC64-LINUX-NEXT: addi 3, 1, 48
; PPC64-LINUX-NEXT: ld 1, 0(1)
; PPC64-LINUX-NEXT: ld 31, -8(1)
; PPC64-LINUX-NEXT: blr
; PPC32-AIX-LABEL: f1
; PPC32-AIX: stw 31, -4(1)
; PPC32-AIX-NEXT: stwu 1, -48(1)
; PPC32-AIX-NEXT: slwi 3, 3, 2
; PPC32-AIX-NEXT: mr 31, 1
; PPC32-AIX-NEXT: addi 3, 3, 15
; PPC32-AIX-NEXT: addi 4, 31, 48
; PPC32-AIX-NEXT: rlwinm 3, 3, 0, 0, 27
; PPC32-AIX-NEXT: neg 3, 3
; PPC32-AIX-NEXT: stwux 4, 1, 3
; The linkage area is always put on the top of the stack.
; PPC32-AIX-NEXT: addi 3, 1, 32
; PPC32-AIX-NEXT: lwz 1, 0(1)
; PPC32-AIX-NEXT: lwz 31, -4(1)
; PPC32-AIX-NEXT: blr
; PPC64-AIX-LABEL: f1
; PPC64-AIX: std 31, -8(1)
; PPC64-AIX-NEXT: stdu 1, -64(1)
; PPC64-AIX-NEXT: rldic 3, 3, 2, 30
; PPC64-AIX-NEXT: mr 31, 1
[PowerPC] Exploit the rldicl + rldicl when and with mask If we are and the constant like 0xFFFFFFC00000, for now, we are using several instructions to generate this 48bit constant and final an "and". However, we could exploit it with two rotate instructions. MB ME MB+63-ME +----------------------+ +----------------------+ |0000001111111111111000| -> |0000000001111111111111| +----------------------+ +----------------------+ 0 63 0 63 Rotate left ME + 1 bit first, and then, mask it with (MB + 63 - ME, 63), finally, rotate back. Notice that, we need to round it with 64 bit for the wrapping case. Reviewed by: ChenZheng, Nemanjai Differential Revision: https://reviews.llvm.org/D71831
2020-04-17 07:24:00 +02:00
; PPC64-AIX-NEXT: addi 3, 3, 15
[AIX] Enable frame pointer for AIX and add related test suite This patch: - enable frame pointer for AIX; - update some of red zone comments; - add/update testcases; Differential Revision: https://reviews.llvm.org/D72454
2020-02-10 19:52:08 +01:00
; PPC64-AIX-NEXT: addi 4, 31, 64
[PowerPC] Exploit the rldicl + rldicl when and with mask If we are and the constant like 0xFFFFFFC00000, for now, we are using several instructions to generate this 48bit constant and final an "and". However, we could exploit it with two rotate instructions. MB ME MB+63-ME +----------------------+ +----------------------+ |0000001111111111111000| -> |0000000001111111111111| +----------------------+ +----------------------+ 0 63 0 63 Rotate left ME + 1 bit first, and then, mask it with (MB + 63 - ME, 63), finally, rotate back. Notice that, we need to round it with 64 bit for the wrapping case. Reviewed by: ChenZheng, Nemanjai Differential Revision: https://reviews.llvm.org/D71831
2020-04-17 07:24:00 +02:00
; PPC64-AIX-NEXT: rldicl 3, 3, 60, 4
; PPC64-AIX-NEXT: rldicl 3, 3, 4, 29
[AIX] Enable frame pointer for AIX and add related test suite This patch: - enable frame pointer for AIX; - update some of red zone comments; - add/update testcases; Differential Revision: https://reviews.llvm.org/D72454
2020-02-10 19:52:08 +01:00
; PPC64-AIX-NEXT: neg 3, 3
; PPC64-AIX-NEXT: stdux 4, 1, 3
; The linkage area is always put on the top of the stack.
; PPC64-AIX-NEXT: addi 3, 1, 48
; PPC64-AIX-NEXT: ld 1, 0(1)
; PPC64-AIX-NEXT: ld 31, -8(1)
; PPC64-AIX-NEXT: blr
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