[llvm-branch-commits] [lld] 2b3336f - [PowerPC][lld] Account for additional X-Forms -> D-Form/DS-Forms load/stores when relaxing initial-exec to local-exec
Tobias Hieta via llvm-branch-commits
llvm-branch-commits at lists.llvm.org
Thu Aug 31 23:27:33 PDT 2023
Author: Amy Kwan
Date: 2023-09-01T08:23:17+02:00
New Revision: 2b3336fa54af70d885b8d795d69337d5b05913e5
URL: https://github.com/llvm/llvm-project/commit/2b3336fa54af70d885b8d795d69337d5b05913e5
DIFF: https://github.com/llvm/llvm-project/commit/2b3336fa54af70d885b8d795d69337d5b05913e5.diff
LOG: [PowerPC][lld] Account for additional X-Forms -> D-Form/DS-Forms load/stores when relaxing initial-exec to local-exec
D153645 added additional X-Form load/stores that can be generated for TLS accesses.
However, these added instructions have not been accounted for in lld. As a result,
lld does not know how to handle them and cannot relax initial-exec to local-exec
when the initial-exec sequence contains these additional load/stores.
This patch aims to resolve https://github.com/llvm/llvm-project/issues/64424.
Differential Revision: https://reviews.llvm.org/D158197
(cherry picked from commit 698b45aa902de4d30c798e8d6bd080c8e31bade8)
Added:
Modified:
lld/ELF/Arch/PPC.cpp
lld/ELF/Arch/PPC64.cpp
lld/ELF/Target.h
lld/test/ELF/ppc32-tls-ie.s
lld/test/ELF/ppc64-tls-ie.s
lld/test/ELF/ppc64-tls-pcrel-ie.s
Removed:
################################################################################
diff --git a/lld/ELF/Arch/PPC.cpp b/lld/ELF/Arch/PPC.cpp
index 87942c1e92452b..3d21edb3453a10 100644
--- a/lld/ELF/Arch/PPC.cpp
+++ b/lld/ELF/Arch/PPC.cpp
@@ -471,10 +471,14 @@ void PPC::relaxTlsIeToLe(uint8_t *loc, const Relocation &rel,
if (insn >> 26 != 31)
error("unrecognized instruction for IE to LE R_PPC_TLS");
// addi rT, rT, x at tls --> addi rT, rT, x at tprel@l
- uint32_t dFormOp = getPPCDFormOp((read32(loc) & 0x000007fe) >> 1);
- if (dFormOp == 0)
- error("unrecognized instruction for IE to LE R_PPC_TLS");
- write32(loc, (dFormOp << 26) | (insn & 0x03ff0000) | lo(val));
+ unsigned secondaryOp = (read32(loc) & 0x000007fe) >> 1;
+ uint32_t dFormOp = getPPCDFormOp(secondaryOp);
+ if (dFormOp == 0) { // Expecting a DS-Form instruction.
+ dFormOp = getPPCDSFormOp(secondaryOp);
+ if (dFormOp == 0)
+ error("unrecognized instruction for IE to LE R_PPC_TLS");
+ }
+ write32(loc, (dFormOp | (insn & 0x03ff0000) | lo(val)));
break;
}
default:
diff --git a/lld/ELF/Arch/PPC64.cpp b/lld/ELF/Arch/PPC64.cpp
index 36b1d0e3c9be44..0b6459f852c0b3 100644
--- a/lld/ELF/Arch/PPC64.cpp
+++ b/lld/ELF/Arch/PPC64.cpp
@@ -37,6 +37,12 @@ enum XFormOpcd {
STHX = 407,
STWX = 151,
STDX = 149,
+ LHAX = 343,
+ LWAX = 341,
+ LFSX = 535,
+ LFDX = 599,
+ STFSX = 663,
+ STFDX = 727,
ADD = 266,
};
@@ -49,7 +55,6 @@ enum DFormOpcd {
LWZ = 32,
LWZU = 33,
LFSU = 49,
- LD = 58,
LFDU = 51,
STB = 38,
STBU = 39,
@@ -59,10 +64,20 @@ enum DFormOpcd {
STWU = 37,
STFSU = 53,
STFDU = 55,
- STD = 62,
+ LHA = 42,
+ LFS = 48,
+ LFD = 50,
+ STFS = 52,
+ STFD = 54,
ADDI = 14
};
+enum DSFormOpcd {
+ LD = 58,
+ LWA = 58,
+ STD = 62
+};
+
constexpr uint32_t NOP = 0x60000000;
enum class PPCLegacyInsn : uint32_t {
@@ -825,26 +840,48 @@ void PPC64::relaxTlsLdToLe(uint8_t *loc, const Relocation &rel,
}
}
+// Map X-Form instructions to their DS-Form counterparts, if applicable.
+// The full encoding is returned here to distinguish between the
diff erent
+// DS-Form instructions.
+unsigned elf::getPPCDSFormOp(unsigned secondaryOp) {
+ switch (secondaryOp) {
+ case LWAX:
+ return (LWA << 26) | 0x2;
+ case LDX:
+ return LD << 26;
+ case STDX:
+ return STD << 26;
+ default:
+ return 0;
+ }
+}
+
unsigned elf::getPPCDFormOp(unsigned secondaryOp) {
switch (secondaryOp) {
case LBZX:
- return LBZ;
+ return LBZ << 26;
case LHZX:
- return LHZ;
+ return LHZ << 26;
case LWZX:
- return LWZ;
- case LDX:
- return LD;
+ return LWZ << 26;
case STBX:
- return STB;
+ return STB << 26;
case STHX:
- return STH;
+ return STH << 26;
case STWX:
- return STW;
- case STDX:
- return STD;
+ return STW << 26;
+ case LHAX:
+ return LHA << 26;
+ case LFSX:
+ return LFS << 26;
+ case LFDX:
+ return LFD << 26;
+ case STFSX:
+ return STFS << 26;
+ case STFDX:
+ return STFD << 26;
case ADD:
- return ADDI;
+ return ADDI << 26;
default:
return 0;
}
@@ -898,10 +935,16 @@ void PPC64::relaxTlsIeToLe(uint8_t *loc, const Relocation &rel,
error("unrecognized instruction for IE to LE R_PPC64_TLS");
uint32_t secondaryOp = (read32(loc) & 0x000007FE) >> 1; // bits 21-30
uint32_t dFormOp = getPPCDFormOp(secondaryOp);
- if (dFormOp == 0)
- error("unrecognized instruction for IE to LE R_PPC64_TLS");
- write32(loc, ((dFormOp << 26) | (read32(loc) & 0x03FFFFFF)));
- relocateNoSym(loc + offset, R_PPC64_TPREL16_LO, val);
+ uint32_t finalReloc;
+ if (dFormOp == 0) { // Expecting a DS-Form instruction.
+ dFormOp = getPPCDSFormOp(secondaryOp);
+ if (dFormOp == 0)
+ error("unrecognized instruction for IE to LE R_PPC64_TLS");
+ finalReloc = R_PPC64_TPREL16_LO_DS;
+ } else
+ finalReloc = R_PPC64_TPREL16_LO;
+ write32(loc, dFormOp | (read32(loc) & 0x03ff0000));
+ relocateNoSym(loc + offset, finalReloc, val);
} else if (locAsInt % 4 == 1) {
// If the offset is not 4 byte aligned then we have a PCRel type reloc.
// This version of the relocation is offset by one byte from the
@@ -926,9 +969,12 @@ void PPC64::relaxTlsIeToLe(uint8_t *loc, const Relocation &rel,
}
} else {
uint32_t dFormOp = getPPCDFormOp(secondaryOp);
- if (dFormOp == 0)
- errorOrWarn("unrecognized instruction for IE to LE R_PPC64_TLS");
- write32(loc - 1, ((dFormOp << 26) | (tlsInstr & 0x03FF0000)));
+ if (dFormOp == 0) { // Expecting a DS-Form instruction.
+ dFormOp = getPPCDSFormOp(secondaryOp);
+ if (dFormOp == 0)
+ errorOrWarn("unrecognized instruction for IE to LE R_PPC64_TLS");
+ }
+ write32(loc - 1, (dFormOp | (tlsInstr & 0x03ff0000)));
}
} else {
errorOrWarn("R_PPC64_TLS must be either 4 byte aligned or one byte "
diff --git a/lld/ELF/Target.h b/lld/ELF/Target.h
index 9d4f22dd93f1bf..47dbe6b4d1c65a 100644
--- a/lld/ELF/Target.h
+++ b/lld/ELF/Target.h
@@ -207,6 +207,7 @@ void processArmCmseSymbols();
void writePPC32GlinkSection(uint8_t *buf, size_t numEntries);
unsigned getPPCDFormOp(unsigned secondaryOp);
+unsigned getPPCDSFormOp(unsigned secondaryOp);
// In the PowerPC64 Elf V2 abi a function can have 2 entry points. The first
// is a global entry point (GEP) which typically is used to initialize the TOC
diff --git a/lld/test/ELF/ppc32-tls-ie.s b/lld/test/ELF/ppc32-tls-ie.s
index f9f46452484a6a..84a105c8626b31 100644
--- a/lld/test/ELF/ppc32-tls-ie.s
+++ b/lld/test/ELF/ppc32-tls-ie.s
@@ -12,8 +12,8 @@
# IE-REL: FLAGS STATIC_TLS
## A non-preemptable symbol (b) has 0 st_shndx.
# IE-REL: .rela.dyn {
-# IE-REL-NEXT: 0x20238 R_PPC_TPREL32 - 0xC
-# IE-REL-NEXT: 0x20234 R_PPC_TPREL32 a 0x0
+# IE-REL-NEXT: 0x20258 R_PPC_TPREL32 - 0xC
+# IE-REL-NEXT: 0x20254 R_PPC_TPREL32 a 0x0
# IE-REL-NEXT: }
## &.got[3] - _GLOBAL_OFFSET_TABLE_ = 12
@@ -44,6 +44,12 @@ lbzx 10, 8, c at tls
# IE-NEXT: stbx 14, 4, 2
# IE-NEXT: sthx 15, 5, 2
# IE-NEXT: stwx 16, 6, 2
+# IE-NEXT: lhax 17, 7, 2
+# IE-NEXT: lwax 18, 8, 2
+# IE-NEXT: lfsx 19, 9, 2
+# IE-NEXT: lfdx 20, 10, 2
+# IE-NEXT: stfsx 21, 11, 2
+# IE-NEXT: stfdx 22, 12, 2
## In LE, these X-Form instructions are changed to their corresponding D-Form.
# LE-NEXT: lhz 12, -28660(2)
@@ -51,12 +57,26 @@ lbzx 10, 8, c at tls
# LE-NEXT: stb 14, -28660(4)
# LE-NEXT: sth 15, -28660(5)
# LE-NEXT: stw 16, -28660(6)
+# LE-NEXT: lha 17, -28660(7)
+# LE-NEXT: lwa 18, -28660(8)
+# LE-NEXT: lfs 19, -28660(9)
+# LE-NEXT: lfd 20, -28660(10)
+# LE-NEXT: stfs 21, -28660(11)
+# LE-NEXT: stfd 22, -28660(12)
lhzx 12, 2, s at tls
lwzx 13, 3, i at tls
stbx 14, 4, c at tls
sthx 15, 5, s at tls
stwx 16, 6, i at tls
+lhax 17, 7, s at tls
+lwax 18, 8, i at tls
+lfsx 19, 9, f at tls
+lfdx 20, 10, d at tls
+stfsx 21, 11, f at tls
+stfdx 22, 12, d at tls
+ldx 23, 13, l at tls
+stdx 24, 14, l at tls
.section .tbss
.globl a
@@ -66,3 +86,6 @@ a:
c:
s:
i:
+f:
+d:
+l:
diff --git a/lld/test/ELF/ppc64-tls-ie.s b/lld/test/ELF/ppc64-tls-ie.s
index 8da808b86c30be..8855e8c0123990 100644
--- a/lld/test/ELF/ppc64-tls-ie.s
+++ b/lld/test/ELF/ppc64-tls-ie.s
@@ -24,10 +24,12 @@
# IE-REL: FLAGS STATIC_TLS
# IE-REL: .rela.dyn {
-# IE-REL-NEXT: 0x204C8 R_PPC64_TPREL64 c 0x0
-# IE-REL-NEXT: 0x204D0 R_PPC64_TPREL64 s 0x0
-# IE-REL-NEXT: 0x204D8 R_PPC64_TPREL64 i 0x0
-# IE-REL-NEXT: 0x204E0 R_PPC64_TPREL64 l 0x0
+# IE-REL-NEXT: 0x205A8 R_PPC64_TPREL64 c 0x0
+# IE-REL-NEXT: 0x205B0 R_PPC64_TPREL64 s 0x0
+# IE-REL-NEXT: 0x205B8 R_PPC64_TPREL64 i 0x0
+# IE-REL-NEXT: 0x205C0 R_PPC64_TPREL64 l 0x0
+# IE-REL-NEXT: 0x205C8 R_PPC64_TPREL64 f 0x0
+# IE-REL-NEXT: 0x205D0 R_PPC64_TPREL64 d 0x0
# IE-REL-NEXT: }
# INPUT-REL: R_PPC64_GOT_TPREL16_HA c 0x0
@@ -152,10 +154,64 @@ test_ds:
ld 4, l at got@tprel(2)
stdx 3, 4, l at tls
+# LE-LABEL: <test_lhax>:
+# LE-NEXT: nop
+# LE-NEXT: addis 3, 13, 0
+# LE-NEXT: lha 3, -28670(3)
+test_lhax:
+ addis 3, 2, s at got@tprel at ha
+ ld 3, s at got@tprel at l(3)
+ lhax 3, 3, s at tls
+
+# LE-LABEL: <test_lwax>:
+# LE-NEXT: nop
+# LE-NEXT: addis 3, 13, 0
+# LE-NEXT: lwa 3, -28668(3)
+test_lwax:
+ addis 3, 2, i at got@tprel at ha
+ ld 3, i at got@tprel at l(3)
+ lwax 3, 3, i at tls
+
+# LE-LABEL: <test_lfsx>:
+# LE-NEXT: nop
+# LE-NEXT: addis 3, 13, 0
+# LE-NEXT: lfs 3, -28656(3)
+test_lfsx:
+ addis 3, 2, f at got@tprel at ha
+ ld 3, f at got@tprel at l(3)
+ lfsx 3, 3, f at tls
+
+# LE-LABEL: <test_lfdx>:
+# LE-NEXT: nop
+# LE-NEXT: addis 3, 13, 0
+# LE-NEXT: lfd 3, -28648(3)
+test_lfdx:
+ addis 3, 2, d at got@tprel at ha
+ ld 3, d at got@tprel at l(3)
+ lfdx 3, 3, d at tls
+
+# LE-LABEL: <test_stfsx>:
+# LE-NEXT: nop
+# LE-NEXT: addis 4, 13, 0
+# LE-NEXT: stfs 3, -28656(4)
+test_stfsx:
+ addis 4, 2, f at got@tprel at ha
+ ld 4, f at got@tprel at l(4)
+ stfsx 3, 4, f at tls
+
+# LE-LABEL: <test_stfdx>:
+# LE-NEXT: nop
+# LE-NEXT: addis 4, 13, 0
+# LE-NEXT: stfd 3, -28648(4)
+test_stfdx:
+ addis 4, 2, d at got@tprel at ha
+ ld 4, d at got@tprel at l(4)
+ stfdx 3, 4, d at tls
+
# NOREL: There are no relocations in this file.
.section .tdata,"awT", at progbits
-.globl c, s, i, l
+.globl c, s, i, l, f, d
c:
.byte 97
@@ -170,3 +226,9 @@ i:
.p2align 3
l:
.quad 55
+f:
+.long 55
+
+.p2align 3
+d:
+.quad 55
diff --git a/lld/test/ELF/ppc64-tls-pcrel-ie.s b/lld/test/ELF/ppc64-tls-pcrel-ie.s
index f7a828dc417443..38c081f9664692 100644
--- a/lld/test/ELF/ppc64-tls-pcrel-ie.s
+++ b/lld/test/ELF/ppc64-tls-pcrel-ie.s
@@ -29,6 +29,12 @@ SECTIONS {
.text_val 0x1002000 : { *(.text_val) }
.text_twoval 0x1003000 : { *(.text_twoval) }
.text_incrval 0x1004000 : { *(.text_incrval) }
+ .text_incrval_half 0x1005000 : { *(.text_incrval_half) }
+ .text_incrval_word 0x1006000 : { *(.text_incrval_word) }
+ .text_incrval_float 0x1007000 : { *(.text_incrval_float) }
+ .text_incrval_double 0x1008000 : { *(.text_incrval_double) }
+ .text_incrval_dword 0x1009000 : { *(.text_incrval_dword) }
+ .text_incrval_half_zero 0x1010000 : { *(.text_incrval_half_zero) }
}
#--- defs
@@ -42,26 +48,26 @@ y:
#--- asm
# IE-RELOC: Relocation section '.rela.dyn' at offset 0x10090 contains 2 entries:
-# IE-RELOC: 00000000010040f0 0000000100000049 R_PPC64_TPREL64 0000000000000000 x + 0
-# IE-RELOC: 00000000010040f8 0000000200000049 R_PPC64_TPREL64 0000000000000000 y + 0
+# IE-RELOC: 00000000010100f0 0000000100000049 R_PPC64_TPREL64 0000000000000000 x + 0
+# IE-RELOC-NEXT: 00000000010100f8 0000000200000049 R_PPC64_TPREL64 0000000000000000 y + 0
# IE-SYM: Symbol table '.dynsym' contains 3 entries:
# IE-SYM: 1: 0000000000000000 0 TLS GLOBAL DEFAULT UND x
# IE-SYM: 2: 0000000000000000 0 TLS GLOBAL DEFAULT UND y
# IE-GOT: Hex dump of section '.got':
-# IE-GOT-NEXT: 0x010040e8 e8c00001 00000000 00000000 00000000
+# IE-GOT-NEXT: 0x010100e8 e8800101 00000000 00000000 00000000
# LE-RELOC: There are no relocations in this file.
-# LE-SYM: Symbol table '.symtab' contains 8 entries:
-# LE-SYM: 6: 0000000000000000 0 TLS GLOBAL DEFAULT 6 x
-# LE-SYM: 7: 0000000000000004 0 TLS GLOBAL DEFAULT 6 y
+# LE-SYM: Symbol table '.symtab' contains 14 entries:
+# LE-SYM: 0000000000000000 0 TLS GLOBAL DEFAULT [[#]] x
+# LE-SYM: 0000000000000004 0 TLS GLOBAL DEFAULT [[#]] y
# LE-GOT: could not find section '.got'
# IE-LABEL: <IEAddr>:
-# IE-NEXT: pld 3, 12528(0), 1
+# IE-NEXT: pld 3, 61680(0), 1
# IE-NEXT: add 3, 3, 13
# IE-NEXT: blr
# LE-LABEL: <IEAddr>:
@@ -75,7 +81,7 @@ IEAddr:
blr
# IE-LABEL: <IEAddrCopy>:
-# IE-NEXT: pld 3, 12512(0), 1
+# IE-NEXT: pld 3, 61664(0), 1
# IE-NEXT: add 4, 3, 13
# IE-NEXT: blr
# LE-LABEL: <IEAddrCopy>:
@@ -89,7 +95,7 @@ IEAddrCopy:
blr
# IE-LABEL: <IEVal>:
-# IE-NEXT: pld 3, 8432(0), 1
+# IE-NEXT: pld 3, 57584(0), 1
# IE-NEXT: lwzx 3, 3, 13
# IE-NEXT: blr
# LE-LABEL: <IEVal>:
@@ -103,8 +109,8 @@ IEVal:
blr
# IE-LABEL: <IETwoVal>:
-# IE-NEXT: pld 3, 4336(0), 1
-# IE-NEXT: pld 4, 4336(0), 1
+# IE-NEXT: pld 3, 53488(0), 1
+# IE-NEXT: pld 4, 53488(0), 1
# IE-NEXT: lwzx 3, 3, 13
# IE-NEXT: lwzx 4, 4, 13
# IE-NEXT: blr
@@ -123,7 +129,7 @@ IETwoVal:
blr
# IE-LABEL: <IEIncrementVal>:
-# IE-NEXT: pld 4, 248(0), 1
+# IE-NEXT: pld 4, 49400(0), 1
# IE-NEXT: lwzx 3, 4, 13
# IE-NEXT: stwx 3, 4, 13
# IE-NEXT: blr
@@ -138,3 +144,105 @@ IEIncrementVal:
lwzx 3, 4, y at tls@pcrel
stwx 3, 4, y at tls@pcrel
blr
+
+# IE-LABEL: <IEIncrementValHalf>:
+# IE-NEXT: pld 4, 45304(0), 1
+# IE-NEXT: lhax 3, 4, 13
+# IE-NEXT: sthx 3, 4, 13
+# IE-NEXT: blr
+# LE-LABEL: <IEIncrementValHalf>:
+# LE-NEXT: paddi 4, 13, -28668, 0
+# LE-NEXT: lha 3, 0(4)
+# LE-NEXT: sth 3, 0(4)
+# LE-NEXT: blr
+.section .text_incrval_half, "ax", %progbits
+IEIncrementValHalf:
+ pld 4, y at got@tprel at pcrel(0), 1
+ lhax 3, 4, y at tls@pcrel
+ sthx 3, 4, y at tls@pcrel
+ blr
+
+# IE-LABEL: <IEIncrementValWord>:
+# IE-NEXT: pld 4, 41208(0), 1
+# IE-NEXT: lwax 3, 4, 13
+# IE-NEXT: stwx 3, 4, 13
+# IE-NEXT: blr
+# LE-LABEL: <IEIncrementValWord>:
+# LE-NEXT: paddi 4, 13, -28668, 0
+# LE-NEXT: lwa 3, 0(4)
+# LE-NEXT: stw 3, 0(4)
+# LE-NEXT: blr
+.section .text_incrval_word, "ax", %progbits
+IEIncrementValWord:
+ pld 4, y at got@tprel at pcrel(0), 1
+ lwax 3, 4, y at tls@pcrel
+ stwx 3, 4, y at tls@pcrel
+ blr
+
+# IE-LABEL: <IEIncrementValFloat>:
+# IE-NEXT: pld 4, 37112(0), 1
+# IE-NEXT: lfsx 3, 4, 13
+# IE-NEXT: stfsx 3, 4, 13
+# IE-NEXT: blr
+# LE-LABEL: <IEIncrementValFloat>:
+# LE-NEXT: paddi 4, 13, -28668, 0
+# LE-NEXT: lfs 3, 0(4)
+# LE-NEXT: stfs 3, 0(4)
+# LE-NEXT: blr
+.section .text_incrval_float, "ax", %progbits
+IEIncrementValFloat:
+ pld 4, y at got@tprel at pcrel(0), 1
+ lfsx 3, 4, y at tls@pcrel
+ stfsx 3, 4, y at tls@pcrel
+ blr
+
+# IE-LABEL: <IEIncrementValDouble>:
+# IE-NEXT: pld 4, 33016(0), 1
+# IE-NEXT: lfdx 3, 4, 13
+# IE-NEXT: stfdx 3, 4, 13
+# IE-NEXT: blr
+# LE-LABEL: <IEIncrementValDouble>:
+# LE-NEXT: paddi 4, 13, -28668, 0
+# LE-NEXT: lfd 3, 0(4)
+# LE-NEXT: stfd 3, 0(4)
+# LE-NEXT: blr
+.section .text_incrval_double, "ax", %progbits
+IEIncrementValDouble:
+ pld 4, y at got@tprel at pcrel(0), 1
+ lfdx 3, 4, y at tls@pcrel
+ stfdx 3, 4, y at tls@pcrel
+ blr
+
+# IE-LABEL: <IEIncrementValDword>:
+# IE-NEXT: pld 4, 28920(0), 1
+# IE-NEXT: ldx 3, 4, 13
+# IE-NEXT: stdx 3, 4, 13
+# IE-NEXT: blr
+# LE-LABEL: <IEIncrementValDword>:
+# LE-NEXT: paddi 4, 13, -28668, 0
+# LE-NEXT: ld 3, 0(4)
+# LE-NEXT: std 3, 0(4)
+# LE-NEXT: blr
+.section .text_incrval_dword, "ax", %progbits
+IEIncrementValDword:
+ pld 4, y at got@tprel at pcrel(0), 1
+ ldx 3, 4, y at tls@pcrel
+ stdx 3, 4, y at tls@pcrel
+ blr
+
+# IE-LABEL: <IEIncrementValHalfZero>:
+# IE-NEXT: pld 4, 248(0), 1
+# IE-NEXT: lhzx 3, 4, 13
+# IE-NEXT: sthx 3, 4, 13
+# IE-NEXT: blr
+# LE-LABEL: <IEIncrementValHalfZero>:
+# LE-NEXT: paddi 4, 13, -28668, 0
+# LE-NEXT: lhz 3, 0(4)
+# LE-NEXT: sth 3, 0(4)
+# LE-NEXT: blr
+.section .text_incrval_half_zero, "ax", %progbits
+IEIncrementValHalfZero:
+ pld 4, y at got@tprel at pcrel(0), 1
+ lhzx 3, 4, y at tls@pcrel
+ sthx 3, 4, y at tls@pcrel
+ blr
More information about the llvm-branch-commits
mailing list