e8245d5324
addr matching was the only gatekeeper for starting selecting G_LOAD and G_STORE using SDAG patterns. * Introduce a complex renderer gi_addr for addr. In this patch only the existing functionality has been implemented. The renderer's name is the same as in SDAG: selectAddr. Apparently the type of GIComplexOperandMatcher doesn't matter as RISCV also uses s32 for both 64 and 32 bit pointers. * X86SelectAddress now is used for both: pattern matching and manual selection. As a result it accumulates all the code that previously was distributed among different selection functions. * Replace getLoadStoreOp with getPtrLoadStoreOp in Load/Store selector as GlobalISel matcher or emitter can't map the pointer type into i32/i64 types used in SDAG patterns for pointers. So the load and store selection of pointers is still manual. getLoadStoreOp is still present because it is used in G_FCONSTANT lowering that requires extra efforts to select it using SDAG patterns. * Since truncating stores are not supported, we custom legalize them by matching types of store and MMO. * Introduce a constant pool flag in X86AddressMode because otherwise we need to introduce a GlobalISel copy for X86ISelAddressMode. * Also please notice in the tests that GlobalISel prefers to fold memory operands immediately comparing to SDAG. The reason is that GlobalISel doesn't have target hooks in GIM_CheckIsSafeToFold. Or maybe another check on profitability is required along with safety check that is currently not present.
61 lines
2.0 KiB
LLVM
61 lines
2.0 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -mtriple=x86_64-linux-gnu -global-isel -verify-machineinstrs < %s -o - | FileCheck %s --check-prefix=X64
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; RUN: llc -mtriple=x86_64-apple-darwin -global-isel -verify-machineinstrs -relocation-model=pic < %s -o - | FileCheck %s --check-prefix=X64_DARWIN_PIC
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; RUN: llc -mtriple=i386-linux-gnu -global-isel -verify-machineinstrs < %s -o - | FileCheck %s --check-prefix=X32
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; RUN: llc -mtriple=x86_64-linux-gnux32 -global-isel -verify-machineinstrs < %s -o - | FileCheck %s --check-prefix=X32ABI
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@g_int = dso_local global i32 0, align 4
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; Function Attrs: noinline nounwind optnone uwtable
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define dso_local ptr @test_global_ptrv() #3 {
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; X64-LABEL: test_global_ptrv:
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; X64: # %bb.0: # %entry
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; X64-NEXT: leaq g_int, %rax
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; X64-NEXT: retq
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;
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; X64_DARWIN_PIC-LABEL: test_global_ptrv:
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; X64_DARWIN_PIC: ## %bb.0: ## %entry
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; X64_DARWIN_PIC-NEXT: leaq _g_int(%rip), %rax
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; X64_DARWIN_PIC-NEXT: retq
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;
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; X32-LABEL: test_global_ptrv:
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; X32: # %bb.0: # %entry
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; X32-NEXT: leal g_int, %eax
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; X32-NEXT: retl
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;
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; X32ABI-LABEL: test_global_ptrv:
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; X32ABI: # %bb.0: # %entry
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; X32ABI-NEXT: leal g_int, %eax
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; X32ABI-NEXT: movl %eax, %eax
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; X32ABI-NEXT: retq
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entry:
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ret ptr @g_int
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}
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; Function Attrs: noinline nounwind optnone uwtable
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define dso_local i32 @test_global_valv() #3 {
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; X64-LABEL: test_global_valv:
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; X64: # %bb.0: # %entry
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; X64-NEXT: movl g_int, %eax
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; X64-NEXT: retq
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;
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; X64_DARWIN_PIC-LABEL: test_global_valv:
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; X64_DARWIN_PIC: ## %bb.0: ## %entry
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; X64_DARWIN_PIC-NEXT: movl _g_int(%rip), %eax
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; X64_DARWIN_PIC-NEXT: retq
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;
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; X32-LABEL: test_global_valv:
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; X32: # %bb.0: # %entry
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; X32-NEXT: movl g_int, %eax
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; X32-NEXT: retl
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;
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; X32ABI-LABEL: test_global_valv:
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; X32ABI: # %bb.0: # %entry
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; X32ABI-NEXT: movl g_int, %eax
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; X32ABI-NEXT: retq
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entry:
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%0 = load i32, ptr @g_int, align 4
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ret i32 %0
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}
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