195 lines
7.9 KiB
LLVM
195 lines
7.9 KiB
LLVM
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; RUN: llc -mtriple=mips-linux-gnu -relocation-model=pic -mips-tail-calls=1 \
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; RUN: -O2 < %s | \
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; RUN: FileCheck %s -check-prefixes=ALL,JALR-ALL,JALR-32,JALR-32R2,TAILCALL-32R2
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; RUN: llc -mtriple=mips64-linux-gnu -relocation-model=pic -mips-tail-calls=1 \
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; RUN: -O2 < %s | \
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; RUN: FileCheck %s -check-prefixes=ALL,JALR-ALL,JALR-64,JALR-64R2,TAILCALL-64R2
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; RUN: llc -mtriple=mips-linux-gnu -relocation-model=pic -mips-tail-calls=1 \
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; RUN: -O2 -mcpu=mips32r6 -mips-compact-branches=always < %s | \
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; RUN: FileCheck %s -check-prefixes=ALL,JALR-ALL,JALR-32,JALR-32R6,TAILCALL-32R6
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; RUN: llc -mtriple=mips64-linux-gnu -relocation-model=pic -mips-tail-calls=1 \
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; RUN: -O2 -mcpu=mips64r6 -mips-compact-branches=always < %s | \
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; RUN: FileCheck %s -check-prefixes=ALL,JALR-ALL,JALR-64,JALR-64R6,TAILCALL-64R6
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; RUN: llc -mtriple=mips-linux-gnu -relocation-model=pic -mips-tail-calls=1 \
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; RUN: -O2 -mcpu=mips32r6 -mips-compact-branches=never < %s | \
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; RUN: FileCheck %s -check-prefixes=ALL,JALR-ALL,JALR-32,JALR-32R2,TAILCALL-32R2
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; RUN: llc -mtriple=mips64-linux-gnu -relocation-model=pic -mips-tail-calls=1 \
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; RUN: -O2 -mcpu=mips64r6 -mips-compact-branches=never < %s | \
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; RUN: FileCheck %s -check-prefixes=ALL,JALR-ALL,JALR-64,JALR-64R2,TAILCALL-64R2
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; RUN: llc -mtriple=mips-linux-gnu -relocation-model=pic -mips-tail-calls=1 \
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; RUN: -O2 -mattr=+micromips -mcpu=mips32r2 < %s | \
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; RUN: FileCheck %s -check-prefixes=ALL,JALR-ALL,JALR-MM,TAILCALL-MM
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; RUN: llc -mtriple=mips-linux-gnu -relocation-model=pic -mips-tail-calls=1 \
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; RUN: -O2 -mattr=+micromips -mcpu=mips32r6 < %s | \
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; RUN: FileCheck %s -check-prefixes=ALL,JALR-ALL,JALR-MM,TAILCALL-MM
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; RUN: llc -mtriple=mips-linux-gnu -relocation-model=pic \
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; RUN: -O0 < %s | FileCheck %s -check-prefixes=ALL,JALR-ALL,JALR-32,JALR-32R2,PIC-NOTAILCALL-R2
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; RUN: llc -mtriple=mips64-linux-gnu -relocation-model=pic \
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; RUN: -O0 < %s | FileCheck %s -check-prefixes=ALL,JALR-ALL,JALR-64,JALR-64R2,PIC-NOTAILCALL-R2
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; RUN: llc -mtriple=mips-linux-gnu -relocation-model=pic \
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; RUN: -O0 -mcpu=mips32r6 -mips-compact-branches=always < %s | \
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; RUN: FileCheck %s -check-prefixes=ALL,JALR-ALL,JALR-32,JALR-32R6,PIC-NOTAILCALL-R6
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; RUN: llc -mtriple=mips64-linux-gnu -relocation-model=pic \
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; RUN: -O0 -mcpu=mips64r6 -mips-compact-branches=always < %s | \
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; RUN: FileCheck %s -check-prefixes=ALL,JALR-ALL,JALR-64,JALR-64R6,PIC-NOTAILCALL-R6
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; RUN: llc -mtriple=mips-linux-gnu -relocation-model=pic \
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; RUN: -O0 -mcpu=mips32r6 -mips-compact-branches=never < %s | \
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; RUN: FileCheck %s -check-prefixes=ALL,JALR-ALL,JALR-32,JALR-32R2,PIC-NOTAILCALL-R2
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; RUN: llc -mtriple=mips64-linux-gnu -relocation-model=pic \
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; RUN: -O0 -mcpu=mips64r6 -mips-compact-branches=never < %s | \
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; RUN: FileCheck %s -check-prefixes=ALL,JALR-ALL,JALR-64,JALR-64R2,PIC-NOTAILCALL-R2
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; RUN: llc -mtriple=mips-linux-gnu -relocation-model=pic \
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; RUN: -O0 -mattr=+micromips -mcpu=mips32r2 < %s | \
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; RUN: FileCheck %s -check-prefixes=ALL,JALR-ALL,JALR-MM,PIC-NOTAILCALL-MM
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; RUN: llc -mtriple=mips-linux-gnu -relocation-model=pic \
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; RUN: -O0 -mattr=+micromips -mcpu=mips32r6 < %s | \
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; RUN: FileCheck %s -check-prefixes=ALL,JALR-ALL,JALR-MM,PIC-NOTAILCALL-MM
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; RUN: llc -mtriple=mips-linux-gnu -relocation-model=pic -mips-tail-calls=1 \
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; RUN: -O2 -mips-jalr-reloc=false < %s | \
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; RUN: FileCheck %s -check-prefixes=ALL,NORELOC
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; RUN: llc -mtriple=mips-linux-gnu -relocation-model=static -mips-tail-calls=1 \
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; RUN: -O2 < %s | \
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; RUN: FileCheck %s -check-prefixes=ALL,NORELOC
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; RUN: llc -mtriple=mips-linux-gnu -relocation-model=pic -mips-tail-calls=1 \
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; RUN: -O0 -mips-jalr-reloc=false < %s | \
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; RUN: FileCheck %s -check-prefixes=ALL,NORELOC
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; RUN: llc -mtriple=mips-linux-gnu -relocation-model=static -mips-tail-calls=1 \
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; RUN: -O0 < %s | \
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; RUN: FileCheck %s -check-prefixes=ALL,NORELOC
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; RUN: llc -mtriple=mips64-linux-gnu -relocation-model=pic -mips-tail-calls=1 \
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; RUN: -O2 -mips-jalr-reloc=false < %s | \
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; RUN: FileCheck %s -check-prefixes=ALL,NORELOC
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; RUN: llc -mtriple=mips64-linux-gnu -mips-tail-calls=1 \
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; RUN: -O2 -relocation-model=static < %s | \
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; RUN: FileCheck %s -check-prefixes=ALL,NORELOC
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; RUN: llc -mtriple=mips64-linux-gnu -relocation-model=pic \
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; RUN: -O0 -mips-jalr-reloc=false < %s | \
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; RUN: FileCheck %s -check-prefixes=ALL,NORELOC
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; RUN: llc -mtriple=mips64-linux-gnu -relocation-model=static \
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; RUN: -O0 < %s | \
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; RUN: FileCheck %s -check-prefixes=ALL,NORELOC
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define internal void @foo() noinline {
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entry:
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ret void
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}
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define void @checkCall() {
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entry:
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; ALL-LABEL: checkCall:
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; ALL-NOT: MIPS_JALR
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call void @foo()
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; JALR-32: .reloc ([[TMPLABEL:\$.+]]), R_MIPS_JALR, foo
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; JALR-64: .reloc [[TMPLABEL:\..+]], R_MIPS_JALR, foo
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; JALR-MM: .reloc ([[TMPLABEL:\$.+]]), R_MICROMIPS_JALR, foo
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; NORELOC-NOT: .reloc
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; JALR-ALL-NEXT: [[TMPLABEL]]:
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; JALR-32R2-NEXT: jalr $25
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; JALR-64R2-NEXT: jalr $25
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; JALR-32R6-NEXT: jalrc $25
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; JALR-64R6-NEXT: jalrc $25
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; JALR-MM-NEXT: jalr $25
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; ALL-NOT: MIPS_JALR
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ret void
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}
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define void @checkTailCall() {
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entry:
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; ALL-LABEL: checkTailCall:
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; ALL-NOT: MIPS_JALR
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tail call void @foo()
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; JALR-32: .reloc ([[TMPLABEL:\$.+]]), R_MIPS_JALR, foo
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; JALR-64: .reloc [[TMPLABEL:\..+]], R_MIPS_JALR, foo
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; JALR-MM: .reloc ([[TMPLABEL:\$.+]]), R_MICROMIPS_JALR, foo
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; JALR-ALL-NEXT: [[TMPLABEL]]:
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; NORELOC-NOT: .reloc
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; TAILCALL-32R2-NEXT: jr $25
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; TAILCALL-64R2-NEXT: jr $25
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; TAILCALL-MM-NEXT: jrc $25
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; TAILCALL-32R6-NEXT: jrc $25
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; TAILCALL-64R6-NEXT: jrc $25
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; PIC-NOTAILCALL-R2-NEXT: jalr $25
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; PIC-NOTAILCALL-R6-NEXT: jalrc $25
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; PIC-NOTAILCALL-MM-NEXT: jalr $25
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; ALL-NOT: MIPS_JALR
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ret void
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}
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; Check that we don't emit R_MIPS_JALR relocations against function pointers.
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; This resulted in run-time crashes until lld was modified to ignore
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; R_MIPS_JALR relocations against data symbols (commit 5bab291b7b).
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; However, the better approach is to not emit these relocations in the first
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; place so check that we no longer emit them.
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; Previously we were adding them for local dynamic TLS function pointers and
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; function pointers with internal linkage.
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@fnptr_internal = internal global void()* @checkFunctionPointerCall
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@fnptr_internal_const = internal constant void()* @checkFunctionPointerCall
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@fnptr_const = constant void()* @checkFunctionPointerCall
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@fnptr_global = global void()* @checkFunctionPointerCall
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define void @checkFunctionPointerCall() {
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entry:
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; ALL-LABEL: checkFunctionPointerCall:
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; ALL-NOT: MIPS_JALR
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%func_internal = load void()*, void()** @fnptr_internal
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call void %func_internal()
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%func_internal_const = load void()*, void()** @fnptr_internal_const
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call void %func_internal_const()
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%func_const = load void()*, void()** @fnptr_const
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call void %func_const()
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%func_global = load void()*, void()** @fnptr_global
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call void %func_global()
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ret void
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}
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@tls_fnptr_gd = thread_local global void()* @checkTlsFunctionPointerCall
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@tls_fnptr_ld = thread_local(localdynamic) global void()* @checkTlsFunctionPointerCall
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@tls_fnptr_ie = thread_local(initialexec) global void()* @checkTlsFunctionPointerCall
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@tls_fnptr_le = thread_local(localexec) global void()* @checkTlsFunctionPointerCall
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define void @checkTlsFunctionPointerCall() {
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entry:
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; There should not be any *JALR relocations in this function other than the
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; calls to __tls_get_addr:
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; ALL-LABEL: checkTlsFunctionPointerCall:
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; ALL-NOT: MIPS_JALR
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; JALR-ALL: .reloc {{.+}}MIPS_JALR, __tls_get_addr
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; ALL-NOT: MIPS_JALR
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; JALR-ALL: .reloc {{.+}}MIPS_JALR, __tls_get_addr
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; NORELOC-NOT: .reloc
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; ALL-NOT: _MIPS_JALR
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%func_gd = load void()*, void()** @tls_fnptr_gd
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call void %func_gd()
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%func_ld = load void()*, void()** @tls_fnptr_ld
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call void %func_ld()
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%func_ie = load void()*, void()** @tls_fnptr_ie
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call void %func_ie()
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%func_le = load void()*, void()** @tls_fnptr_le
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call void %func_le()
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ret void
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}
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