125 lines
4.9 KiB
Diff
125 lines
4.9 KiB
Diff
From 6d07dd66f1412b8f7eaadbcd9d660859d4227954 Mon Sep 17 00:00:00 2001
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From: Neale Ferguson <neale@sinenomine.net>
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Date: Sat, 11 Aug 2018 19:33:58 -0400
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Subject: [PATCH] =?UTF-8?q?Fix=20s390x=20build=20broken=20by=20incorrect?=
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=?UTF-8?q?=20specification=20of=20the=20msgfi=20instuc=E2=80=A6=20(#10026?=
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=?UTF-8?q?)?=
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Fix s390x build broken by incorrect specification of the msgfi instruction used in MUL_IMM type operations. The instruction had been encoded as its 32-bit counterpart (msfi).
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In addition, the s390x microcode makes the mono_strength_reduction_division unnecessary so this can be bypassed.
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The change to basic.make is just to avoid error messages when basic-profile-check.exe hasn't been built yet.
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---
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mcs/build/profiles/basic.make | 2 +-
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mono/arch/s390x/s390x-codegen.h | 4 ++--
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mono/mini/local-propagation.c | 9 +++------
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mono/mini/mini-s390x.h | 1 +
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mono/mini/mini.c | 3 +++
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mono/mini/mini.h | 1 +
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6 files changed, 11 insertions(+), 9 deletions(-)
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diff --git a/mcs/build/profiles/basic.make b/mcs/build/profiles/basic.make
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index eb2264efd457..7dd7770fc512 100644
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--- a/mcs/build/profiles/basic.make
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+++ b/mcs/build/profiles/basic.make
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@@ -122,7 +122,7 @@ $(PROFILE_EXE): $(topdir)/build/common/basic-profile-check.cs $(GENSOURCES_CS)
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$(BOOTSTRAP_MCS) /noconfig /langversion:latest /r:mscorlib.dll /r:System.dll /r:System.Core.dll /out:$(GENSOURCES_EXE).tmp $(GENSOURCES_CS)
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- rm $(GENSOURCES_EXE)
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mv $(GENSOURCES_EXE).tmp $(GENSOURCES_EXE)
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- - rm $@
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+ - rm -f $@
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mv $@.tmp $@
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$(PROFILE_OUT): $(PROFILE_EXE)
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diff --git a/mono/arch/s390x/s390x-codegen.h b/mono/arch/s390x/s390x-codegen.h
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index 49fc120f7d49..12fdd2894eaa 100644
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--- a/mono/arch/s390x/s390x-codegen.h
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+++ b/mono/arch/s390x/s390x-codegen.h
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@@ -1393,8 +1393,8 @@ typedef struct {
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#define s390_mlr(c, r1, r2) S390_RRE(c, 0xb996, r1, r2)
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#define s390_mr(c, r1, r2) S390_RR(c, 0x1c, r1, r2)
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#define s390_ms(c, r, x, b, d) S390_RX(c, 0x71, r, x, b, d)
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-#define s390_msfi(c, r, v) S390_RIL_1(c, 0xc20, r, v)
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-#define s390_msgfi(c, r, v) S390_RIL_1(c, 0xc21, r, v)
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+#define s390_msfi(c, r, v) S390_RIL_1(c, 0xc21, r, v)
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+#define s390_msgfi(c, r, v) S390_RIL_1(c, 0xc20, r, v)
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#define s390_msgfr(c, r1, r2) S390_RRE(c, 0xb91c, r1, r2)
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#define s390_msgr(c, r1, r2) S390_RRE(c, 0xb90c, r1, r2)
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#define s390_msgrkc(c, r1, r2, r3) S390_RRF_1(c, 0xb9ed, r1, r2, r3)
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diff --git a/mono/mini/local-propagation.c b/mono/mini/local-propagation.c
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index 4b5e02ff28f0..d8e8461291aa 100644
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--- a/mono/mini/local-propagation.c
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+++ b/mono/mini/local-propagation.c
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@@ -370,7 +370,7 @@ mono_strength_reduction_ins (MonoCompile *cfg, MonoInst *ins, const char **spec)
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}
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case OP_IDIV_UN_IMM:
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case OP_IDIV_IMM: {
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- if (!COMPILE_LLVM (cfg))
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+ if ((!COMPILE_LLVM (cfg)) && (!cfg->backend->optimized_div))
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allocated_vregs = mono_strength_reduction_division (cfg, ins);
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break;
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}
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@@ -383,10 +383,8 @@ mono_strength_reduction_ins (MonoCompile *cfg, MonoInst *ins, const char **spec)
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ins->opcode = OP_ICONST;
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MONO_INST_NULLIFY_SREGS (ins);
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ins->inst_c0 = 0;
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-#if __s390__
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- }
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-#else
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- } else if ((ins->inst_imm > 0) && (ins->inst_imm < (1LL << 32)) && (power != -1)) {
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+ } else if ((ins->inst_imm > 0) && (ins->inst_imm < (1LL << 32)) &&
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+ (power != -1) && (!cfg->backend->optimized_div)) {
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gboolean is_long = ins->opcode == OP_LREM_IMM;
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int compensator_reg = alloc_ireg (cfg);
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int intermediate_reg;
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@@ -411,7 +409,6 @@ mono_strength_reduction_ins (MonoCompile *cfg, MonoInst *ins, const char **spec)
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allocated_vregs = TRUE;
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}
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-#endif
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break;
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}
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#if SIZEOF_REGISTER == 4
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diff --git a/mono/mini/mini-s390x.h b/mono/mini/mini-s390x.h
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index 464ddb117894..9323182c0cc7 100644
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--- a/mono/mini/mini-s390x.h
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+++ b/mono/mini/mini-s390x.h
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@@ -65,6 +65,7 @@ typedef struct
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#define MONO_ARCH_HAVE_OP_GENERIC_CLASS_INIT 1
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#define MONO_ARCH_HAVE_SETUP_ASYNC_CALLBACK 1
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#define MONO_ARCH_HAVE_TRACK_FPREGS 1
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+#define MONO_ARCH_HAVE_OPTIMIZED_DIV 1
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#define S390_STACK_ALIGNMENT 8
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#define S390_FIRST_ARG_REG s390_r2
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diff --git a/mono/mini/mini.c b/mono/mini/mini.c
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index 9fdf34bd2a98..fa7608daebfe 100644
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--- a/mono/mini/mini.c
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+++ b/mono/mini/mini.c
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@@ -3045,6 +3045,9 @@ init_backend (MonoBackend *backend)
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#ifdef MONO_ARCH_EXPLICIT_NULL_CHECKS
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backend->explicit_null_checks = 1;
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#endif
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+#ifdef MONO_ARCH_HAVE_OPTIMIZED_DIV
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+ backend->optimized_div = 1;
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+#endif
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}
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/*
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diff --git a/mono/mini/mini.h b/mono/mini/mini.h
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index 780208ed8a57..fb217b3194b7 100644
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--- a/mono/mini/mini.h
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+++ b/mono/mini/mini.h
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@@ -1150,6 +1150,7 @@ typedef struct {
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guint no_unaligned_access : 1;
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guint disable_div_with_mul : 1;
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guint explicit_null_checks : 1;
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+ guint optimized_div : 1;
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int monitor_enter_adjustment;
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int dyn_call_param_area;
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} MonoBackend;
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