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659464b45b
TargetMachine::shouldAssumeDSOLocal currently implies dso_local for such definitions. Adding explicit dso_local makes these tests align with the clang -fpic behavior and allow the removal of the TargetMachine::shouldAssumeDSOLocal special case. Rewrite preemption.ll to dsolocal-static.ll and dsolocal-pic.ll, and add "PIC Level" metadata.
196 lines
6.7 KiB
LLVM
196 lines
6.7 KiB
LLVM
; RUN: llc -relocation-model=static -verify-machineinstrs -O0 -mcpu=pwr7 -code-model=medium -filetype=obj -fast-isel=false %s -o - | \
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; RUN: llvm-readobj -r - | FileCheck -check-prefix=MEDIUM %s
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; RUN: llc -relocation-model=static -verify-machineinstrs -O0 -mcpu=pwr7 -code-model=large -filetype=obj -fast-isel=false %s -o - | \
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; RUN: llvm-readobj -r - | FileCheck -check-prefix=LARGE %s
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; Run jump table test separately since jump tables aren't generated at -O0.
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; RUN: llc -relocation-model=static -verify-machineinstrs -mcpu=pwr7 -code-model=medium -filetype=obj -fast-isel=false %s -o - | \
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; RUN: llvm-readobj -r - | FileCheck -check-prefix=MEDIUM-JT %s
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; RUN: llc -relocation-model=static -verify-machineinstrs -mcpu=pwr7 -code-model=large -filetype=obj -fast-isel=false %s -o - | \
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; RUN: llvm-readobj -r - | FileCheck -check-prefix=LARGE-JT %s
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; FIXME: When asm-parse is available, could make this an assembly test.
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target datalayout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-f128:128:128-v128:128:128-n32:64"
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target triple = "powerpc64-unknown-linux-gnu"
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@ei = external global i32
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define dso_local signext i32 @test_external() nounwind {
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entry:
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%0 = load i32, i32* @ei, align 4
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%inc = add nsw i32 %0, 1
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store i32 %inc, i32* @ei, align 4
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ret i32 %0
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}
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; Verify generation of R_PPC64_TOC16_HA and R_PPC64_TOC16_LO_DS for
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; accessing external variable ei.
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;
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; MEDIUM: Relocations [
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; MEDIUM: Section {{.*}} .rela.text {
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; MEDIUM-NEXT: 0x{{[0-9,A-F]+}} R_PPC64_TOC16_HA .toc 0x0
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; MEDIUM-NEXT: 0x{{[0-9,A-F]+}} R_PPC64_TOC16_LO_DS .toc 0x0
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;
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; LARGE: Relocations [
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; LARGE: Section {{.*}} .rela.text {
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; LARGE-NEXT: 0x{{[0-9,A-F]+}} R_PPC64_TOC16_HA [[SYM1:[^ ]+]]
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; LARGE-NEXT: 0x{{[0-9,A-F]+}} R_PPC64_TOC16_LO_DS [[SYM1]]
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@test_fn_static.si = internal global i32 0, align 4
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define dso_local signext i32 @test_fn_static() nounwind {
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entry:
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%0 = load i32, i32* @test_fn_static.si, align 4
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%inc = add nsw i32 %0, 1
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store i32 %inc, i32* @test_fn_static.si, align 4
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ret i32 %0
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}
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; Verify generation of R_PPC64_TOC16_HA and R_PPC64_TOC16_LO for
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; accessing function-scoped variable si.
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;
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; MEDIUM-NEXT: 0x{{[0-9,A-F]+}} R_PPC64_TOC16_HA .bss 0x0
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; MEDIUM-NEXT: 0x{{[0-9,A-F]+}} R_PPC64_TOC16_LO .bss 0x0
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;
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; Verify generation of R_PPC64_TOC16_HA and R_PPC64_TOC16_LO_DS for
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; accessing function-scoped variable si.
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;
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; LARGE-NEXT: 0x{{[0-9,A-F]+}} R_PPC64_TOC16_HA [[SYM2:[^ ]+]]
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; LARGE-NEXT: 0x{{[0-9,A-F]+}} R_PPC64_TOC16_LO_DS [[SYM2]]
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@gi = dso_local global i32 5, align 4
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define dso_local signext i32 @test_file_static() nounwind {
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entry:
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%0 = load i32, i32* @gi, align 4
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%inc = add nsw i32 %0, 1
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store i32 %inc, i32* @gi, align 4
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ret i32 %0
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}
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; Verify generation of R_PPC64_TOC16_HA and R_PPC64_TOC16_LO for
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; accessing file-scope variable gi.
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;
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; MEDIUM-NEXT: 0x{{[0-9,A-F]+}} R_PPC64_TOC16_HA gi 0x0
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; MEDIUM-NEXT: 0x{{[0-9,A-F]+}} R_PPC64_TOC16_LO gi 0x0
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;
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; Verify generation of R_PPC64_TOC16_HA and R_PPC64_TOC16_LO_DS for
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; accessing file-scope variable gi.
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;
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; LARGE-NEXT: 0x{{[0-9,A-F]+}} R_PPC64_TOC16_HA [[SYM3:[^ ]+]]
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; LARGE-NEXT: 0x{{[0-9,A-F]+}} R_PPC64_TOC16_LO_DS [[SYM3]]
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define dso_local double @test_double_const() nounwind {
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entry:
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ret double 0x3F4FD4920B498CF0
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}
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; Verify generation of R_PPC64_TOC16_HA and R_PPC64_TOC16_LO for
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; accessing a constant.
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;
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; MEDIUM-NEXT: 0x{{[0-9,A-F]+}} R_PPC64_TOC16_HA .rodata.cst8
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; MEDIUM-NEXT: 0x{{[0-9,A-F]+}} R_PPC64_TOC16_LO .rodata.cst8
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;
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; Verify generation of R_PPC64_TOC16_HA and R_PPC64_TOC16_LO_DS for
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; accessing a constant.
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;
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; LARGE-NEXT: 0x{{[0-9,A-F]+}} R_PPC64_TOC16_HA [[SYM4:[^ ]+]]
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; LARGE-NEXT: 0x{{[0-9,A-F]+}} R_PPC64_TOC16_LO_DS [[SYM4]]
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@ti = common dso_local global i32 0, align 4
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define dso_local signext i32 @test_tentative() nounwind {
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entry:
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%0 = load i32, i32* @ti, align 4
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%inc = add nsw i32 %0, 1
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store i32 %inc, i32* @ti, align 4
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ret i32 %0
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}
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; Verify generation of relocations foraccessing variable ti.
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;
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; MEDIUM-NEXT: 0x{{[0-9,A-F]+}} R_PPC64_TOC16_HA ti 0x0
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; MEDIUM-NEXT: 0x{{[0-9,A-F]+}} R_PPC64_TOC16_LO ti 0x0
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;
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; LARGE-NEXT: 0x{{[0-9,A-F]+}} R_PPC64_TOC16_HA [[SYM6:[^ ]+]]
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; LARGE-NEXT: 0x{{[0-9,A-F]+}} R_PPC64_TOC16_LO_DS [[SYM6]]
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define i8* @test_fnaddr() nounwind {
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entry:
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%func = alloca i32 (i32)*, align 8
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store i32 (i32)* @foo, i32 (i32)** %func, align 8
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%0 = load i32 (i32)*, i32 (i32)** %func, align 8
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%1 = bitcast i32 (i32)* %0 to i8*
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ret i8* %1
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}
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declare signext i32 @foo(i32 signext)
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; Verify generation of R_PPC64_TOC16_HA and R_PPC64_TOC16_LO_DS for
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; accessing function address foo.
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;
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; MEDIUM-NEXT: 0x{{[0-9,A-F]+}} R_PPC64_TOC16_HA .toc 0x8
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; MEDIUM-NEXT: 0x{{[0-9,A-F]+}} R_PPC64_TOC16_LO_DS .toc 0x8
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;
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; LARGE-NEXT: 0x{{[0-9,A-F]+}} R_PPC64_TOC16_HA [[SYM7:[^ ]+]]
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; LARGE-NEXT: 0x{{[0-9,A-F]+}} R_PPC64_TOC16_LO_DS [[SYM7]]
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define dso_local signext i32 @test_jump_table(i32 signext %i) nounwind {
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entry:
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%i.addr = alloca i32, align 4
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store i32 %i, i32* %i.addr, align 4
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%0 = load i32, i32* %i.addr, align 4
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switch i32 %0, label %sw.default [
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i32 3, label %sw.bb
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i32 4, label %sw.bb1
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i32 5, label %sw.bb2
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i32 6, label %sw.bb3
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]
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sw.default: ; preds = %entry
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br label %sw.epilog
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sw.bb: ; preds = %entry
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%1 = load i32, i32* %i.addr, align 4
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%mul = mul nsw i32 %1, 7
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store i32 %mul, i32* %i.addr, align 4
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br label %sw.bb1
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sw.bb1: ; preds = %entry, %sw.bb
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%2 = load i32, i32* %i.addr, align 4
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%dec = add nsw i32 %2, -1
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store i32 %dec, i32* %i.addr, align 4
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br label %sw.bb2
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sw.bb2: ; preds = %entry, %sw.bb1
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%3 = load i32, i32* %i.addr, align 4
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%add = add nsw i32 %3, 3
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store i32 %add, i32* %i.addr, align 4
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br label %sw.bb3
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sw.bb3: ; preds = %entry, %sw.bb2
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%4 = load i32, i32* %i.addr, align 4
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%shl = shl i32 %4, 1
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store i32 %shl, i32* %i.addr, align 4
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br label %sw.epilog
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sw.epilog: ; preds = %sw.bb3, %sw.default
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%5 = load i32, i32* %i.addr, align 4
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ret i32 %5
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}
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; Verify generation of R_PPC64_TOC16_HA and R_PPC64_TOC16_LO_DS for
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; accessing a jump table address.
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;
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; MEDIUM-JT: Relocations [
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; MEDIUM-JT: Section ({{.*}}) .rela.text {
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; MEDIUM-JT-NEXT: 0x{{[0-9,A-F]+}} R_PPC64_TOC16_HA [[SYM:[^ ]+]]
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; MEDIUM-JT-NEXT: 0x{{[0-9,A-F]+}} R_PPC64_TOC16_LO_DS [[SYM]]
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;
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; LARGE-JT: Relocations [
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; LARGE-JT: Section ({{.*}}) .rela.text {
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; LARGE-JT-NEXT: 0x{{[0-9,A-F]+}} R_PPC64_TOC16_HA [[SYM:[^ ]+]]
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; LARGE-JT-NEXT: 0x{{[0-9,A-F]+}} R_PPC64_TOC16_LO_DS [[SYM]]
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