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[PowerPC][PCRelative] Turn on TLS support for PCRel by default

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Turn on TLS support for PCRel by default and update the test cases.

Differential Revision: https://reviews.llvm.org/D88738
Reviewed by: stefanp, kamaub
This commit is contained in:
Victor Huang 2020-10-27 13:56:54 -05:00
parent 2a3c18dd52
commit aa4ee0ed67
6 changed files with 8 additions and 37 deletions
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8
lib/Target/PowerPC/PPCISelLowering.cpp
View File

@ -121,11 +121,6 @@ cl::desc("don't always align innermost loop to 32 bytes on ppc"), cl::Hidden);
static cl::opt<bool> UseAbsoluteJumpTables("ppc-use-absolute-jumptables",
cl::desc("use absolute jump tables on ppc"), cl::Hidden);
static cl::opt<bool> EnablePPCPCRelTLS(
"enable-ppc-pcrel-tls",
cl::desc("enable the use of PC relative memops in TLS instructions on PPC"),
cl::Hidden);
STATISTIC(NumTailCalls, "Number of tail calls");
STATISTIC(NumSiblingCalls, "Number of sibling calls");
STATISTIC(ShufflesHandledWithVPERM, "Number of shuffles lowered to a VPERM");
@ -3015,9 +3010,6 @@ SDValue PPCTargetLowering::LowerGlobalTLSAddress(SDValue Op,
// which is the most useful form. Eventually support for small and
// large models could be added if users need it, at the cost of
// additional complexity.
if (Subtarget.isUsingPCRelativeCalls() && !EnablePPCPCRelTLS)
report_fatal_error("Thread local storage is not supported with pc-relative"
" addressing - please compile with -mno-pcrel");
GlobalAddressSDNode *GA = cast<GlobalAddressSDNode>(Op);
if (DAG.getTarget().useEmulatedTLS())
return LowerToTLSEmulatedModel(GA, DAG);

6
test/CodeGen/PowerPC/pcrel-tls-general-dynamic.ll
View File

@ -1,9 +1,7 @@
; RUN: llc -verify-machineinstrs -mtriple=powerpc64le-unknown-linux-gnu \
; RUN: --relocation-model=pic -mcpu=pwr10 -ppc-asm-full-reg-names \
; RUN: -enable-ppc-pcrel-tls < %s | FileCheck %s --check-prefix=CHECK-S
; RUN: --relocation-model=pic -mcpu=pwr10 -ppc-asm-full-reg-names < %s | FileCheck %s --check-prefix=CHECK-S
; RUN: llc -verify-machineinstrs -mtriple=powerpc64le-unknown-linux-gnu \
; RUN: --relocation-model=pic -mcpu=pwr10 -ppc-asm-full-reg-names \
; RUN: -enable-ppc-pcrel-tls --filetype=obj -o %t.o < %s
; RUN: --relocation-model=pic -mcpu=pwr10 -ppc-asm-full-reg-names --filetype=obj -o %t.o < %s
; RUN: llvm-objdump --mcpu=pwr10 -dr %t.o |FileCheck %s --check-prefix=CHECK-O
; RUN: llvm-readelf -s %t.o | FileCheck %s --check-prefix=CHECK-SYM

6
test/CodeGen/PowerPC/pcrel-tls-initial-exec.ll
View File

@ -1,9 +1,7 @@
; RUN: llc -verify-machineinstrs -mtriple=powerpc64le-unknown-linux-gnu \
; RUN: -mcpu=pwr10 -ppc-asm-full-reg-names -enable-ppc-pcrel-tls < %s | \
; RUN: FileCheck %s --check-prefix=CHECK-S
; RUN: -mcpu=pwr10 -ppc-asm-full-reg-names < %s | FileCheck %s --check-prefix=CHECK-S
; RUN: llc -verify-machineinstrs -mtriple=powerpc64le-unknown-linux-gnu \
; RUN: -mcpu=pwr10 -ppc-asm-full-reg-names --filetype=obj \
; RUN: -enable-ppc-pcrel-tls -o %t.o < %s
; RUN: -mcpu=pwr10 -ppc-asm-full-reg-names --filetype=obj -o %t.o < %s
; RUN: llvm-objdump --mcpu=pwr10 -dr %t.o | FileCheck %s --check-prefix=CHECK-O
; RUN: llvm-readelf -s %t.o | FileCheck %s --check-prefix=CHECK-SYM

4
test/CodeGen/PowerPC/pcrel-tls-local-dynamic.ll
View File

@ -1,7 +1,7 @@
; RUN: llc -verify-machineinstrs -mtriple=powerpc64le-unknown-linux-gnu -mcpu=pwr10 \
; RUN: -ppc-asm-full-reg-names --relocation-model=pic -enable-ppc-pcrel-tls < %s | FileCheck %s --check-prefix=CHECK-S
; RUN: -ppc-asm-full-reg-names --relocation-model=pic < %s | FileCheck %s --check-prefix=CHECK-S
; RUN: llc -verify-machineinstrs -mtriple=powerpc64le-unknown-linux-gnu -mcpu=pwr10 \
; RUN: -ppc-asm-full-reg-names --relocation-model=pic -enable-ppc-pcrel-tls --filetype=obj < %s | \
; RUN: -ppc-asm-full-reg-names --relocation-model=pic --filetype=obj < %s | \
; RUN: llvm-objdump --mcpu=pwr10 --no-show-raw-insn -dr - | FileCheck %s --check-prefix=CHECK-O
; These test cases are to ensure that when using pc relative memory operations

5
test/CodeGen/PowerPC/pcrel-tls-local-exec.ll
View File

@ -1,8 +1,7 @@
; RUN: llc -verify-machineinstrs -mtriple=powerpc64le-unknown-linux-gnu \
; RUN: -enable-ppc-pcrel-tls -mcpu=pwr10 -ppc-asm-full-reg-names \
; RUN: llc -verify-machineinstrs -mtriple=powerpc64le-unknown-linux-gnu -mcpu=pwr10 -ppc-asm-full-reg-names \
; RUN: < %s | FileCheck %s --check-prefix=CHECK-S
; RUN: llc -verify-machineinstrs -mtriple=powerpc64le-unknown-linux-gnu \
; RUN: -enable-ppc-pcrel-tls -mcpu=pwr10 -ppc-asm-full-reg-names \
; RUN: -mcpu=pwr10 -ppc-asm-full-reg-names \
; RUN: --filetype=obj < %s | llvm-objdump --no-show-raw-insn --mcpu=pwr10 -dr - \
; RUN: | FileCheck %s --check-prefix=CHECK-O

16
test/CodeGen/PowerPC/pcrel-tls.ll
View File

@ -1,16 +0,0 @@
; RUN: not --crash llc -mcpu=pwr10 -mtriple=powerpc64le-unknown-linux-gnu \
; RUN: -verify-machineinstrs -mattr=+pcrelative-memops -o - < %s 2>&1 | \
; RUN: FileCheck %s --check-prefix=CHECK-PCREL
; RUN: llc -mcpu=pwr10 -mtriple=powerpc64le-unknown-linux-gnu \
; RUN: -verify-machineinstrs -mattr=-pcrelative-memops -o - < %s 2>&1 | \
; RUN: FileCheck %s --check-prefix=CHECK-NOPCREL
; CHECK-PCREL: Thread local storage is not supported with pc-relative addressing
; CHECK-NOPCREL: blr
@x = external thread_local global i32, align 4
define i32* @testTLS() {
entry:
ret i32* @x
}