| ; RUN: llc -mtriple=s390x-linux-gnu < %s | FileCheck %s |
| |
| ; Trivial patchpoint codegen |
| ; |
| define i64 @trivial_patchpoint_codegen(i64 %p1, i64 %p2, i64 %p3, i64 %p4) { |
| entry: |
| ; CHECK-LABEL: trivial_patchpoint_codegen: |
| ; CHECK: llilf %r1, 559038736 |
| ; CHECK-NEXT: basr %r14, %r1 |
| ; CHECK-NEXT: bcr 0, %r0 |
| ; CHECK: lgr [[REG0:%r[0-9]+]], %r2 |
| ; CHECK: llilf %r1, 559038737 |
| ; CHECK-NEXT: basr %r14, %r1 |
| ; CHECK-NEXT: bcr 0, %r0 |
| ; CHECK: lgr %r2, [[REG0:%r[0-9]+]] |
| ; CHECK: br %r14 |
| %resolveCall2 = inttoptr i64 559038736 to ptr |
| %result = tail call i64 (i64, i32, ptr, i32, ...) @llvm.experimental.patchpoint.i64(i64 2, i32 10, ptr %resolveCall2, i32 4, i64 %p1, i64 %p2, i64 %p3, i64 %p4) |
| %resolveCall3 = inttoptr i64 559038737 to ptr |
| tail call void (i64, i32, ptr, i32, ...) @llvm.experimental.patchpoint.void(i64 3, i32 10, ptr %resolveCall3, i32 2, i64 %p1, i64 %result) |
| ret i64 %result |
| } |
| |
| ; Trivial symbolic patchpoint codegen. |
| ; |
| |
| declare i64 @foo(i64 %p1, i64 %p2) |
| define i64 @trivial_symbolic_patchpoint_codegen(i64 %p1, i64 %p2) { |
| entry: |
| ; CHECK-LABEL: trivial_symbolic_patchpoint_codegen: |
| ; CHECK: brasl %r14, foo@PLT |
| ; CHECK-NEXT: bcr 0, %r0 |
| ; CHECK: br %r14 |
| %result = tail call i64 (i64, i32, ptr, i32, ...) @llvm.experimental.patchpoint.i64(i64 9, i32 8, ptr @foo, i32 2, i64 %p1, i64 %p2) |
| ret i64 %result |
| } |
| |
| |
| ; Caller frame metadata with stackmaps. This should not be optimized |
| ; as a leaf function. |
| ; |
| ; CHECK-LABEL: caller_meta_leaf |
| ; CHECK: aghi %r15, -184 |
| ; CHECK: .Ltmp |
| ; CHECK: lmg %r14, %r15, 296(%r15) |
| ; CHECK: br %r14 |
| define void @caller_meta_leaf() { |
| entry: |
| %metadata = alloca i64, i32 3, align 8 |
| store i64 11, ptr %metadata |
| store i64 12, ptr %metadata |
| store i64 13, ptr %metadata |
| call void (i64, i32, ...) @llvm.experimental.stackmap(i64 4, i32 0, ptr %metadata) |
| ret void |
| } |
| |
| ; Test patchpoints reusing the same TargetConstant. |
| ; <rdar:15390785> Assertion failed: (CI.getNumArgOperands() >= NumArgs + 4) |
| ; There is no way to verify this, since it depends on memory allocation. |
| ; But I think it's useful to include as a working example. |
| define i64 @testLowerConstant(i64 %arg, i64 %tmp2, i64 %tmp10, ptr %tmp33, i64 %tmp79) { |
| entry: |
| %tmp80 = add i64 %tmp79, -16 |
| %tmp81 = inttoptr i64 %tmp80 to ptr |
| %tmp82 = load i64, ptr %tmp81, align 8 |
| tail call void (i64, i32, ...) @llvm.experimental.stackmap(i64 14, i32 6, i64 %arg, i64 %tmp2, i64 %tmp10, i64 %tmp82) |
| tail call void (i64, i32, ptr, i32, ...) @llvm.experimental.patchpoint.void(i64 15, i32 30, ptr null, i32 3, i64 %arg, i64 %tmp10, i64 %tmp82) |
| %tmp83 = load i64, ptr %tmp33, align 8 |
| %tmp84 = add i64 %tmp83, -24 |
| %tmp85 = inttoptr i64 %tmp84 to ptr |
| %tmp86 = load i64, ptr %tmp85, align 8 |
| tail call void (i64, i32, ...) @llvm.experimental.stackmap(i64 17, i32 6, i64 %arg, i64 %tmp10, i64 %tmp86) |
| tail call void (i64, i32, ptr, i32, ...) @llvm.experimental.patchpoint.void(i64 18, i32 30, ptr null, i32 3, i64 %arg, i64 %tmp10, i64 %tmp86) |
| ret i64 10 |
| } |
| |
| ; Test small patchpoints that don't emit calls. |
| define void @small_patchpoint_codegen(i64 %p1, i64 %p2, i64 %p3, i64 %p4) { |
| entry: |
| ; CHECK-LABEL: small_patchpoint_codegen: |
| ; CHECK: .Ltmp |
| ; CHECK: bcr 0, %r0 |
| ; CHECK: br %r14 |
| %result = tail call i64 (i64, i32, ptr, i32, ...) @llvm.experimental.patchpoint.i64(i64 5, i32 2, ptr null, i32 2, i64 %p1, i64 %p2) |
| ret void |
| } |
| |
| ; Test large target address. |
| define i64 @large_target_address_patchpoint_codegen() { |
| entry: |
| ; CHECK-LABEL: large_target_address_patchpoint_codegen: |
| ; CHECK: llilf %r1, 2566957755 |
| ; CHECK-NEXT: iihf %r1, 1432778632 |
| ; CHECK-NEXT: basr %r14, %r1 |
| %resolveCall2 = inttoptr i64 6153737369414576827 to ptr |
| %result = tail call i64 (i64, i32, ptr, i32, ...) @llvm.experimental.patchpoint.i64(i64 2, i32 14, ptr %resolveCall2, i32 0) |
| ret i64 %result |
| } |
| |
| ; Test that the number of bytes is reflected in the instruction size and |
| ; therefore cause relaxation of the initial branch. |
| define void @patchpoint_size(i32 %Arg) { |
| ; CHECK-LABEL: patchpoint_size: |
| ; CHECK: # %bb.0: |
| ; CHECK-NEXT: stmg %r14, %r15, 112(%r15) |
| ; CHECK-NEXT: .cfi_offset %r14, -48 |
| ; CHECK-NEXT: .cfi_offset %r15, -40 |
| ; CHECK-NEXT: aghi %r15, -160 |
| ; CHECK-NEXT: .cfi_def_cfa_offset 320 |
| ; CHECK-NEXT: chi %r2, 0 |
| ; CHECK-NEXT: jge .LBB6_2 |
| %c = icmp eq i32 %Arg, 0 |
| br i1 %c, label %block0, label %patch1 |
| |
| block0: |
| call i64 @foo(i64 0, i64 0) |
| br label %exit |
| |
| patch1: |
| call void (i64, i32, ptr, i32, ...) @llvm.experimental.patchpoint.void(i64 0, i32 65536, ptr null, i32 0) |
| br label %exit |
| |
| exit: |
| ret void |
| } |
| |
| define void @stackmap_size(i32 %Arg) { |
| ; CHECK-LABEL: stackmap_size: |
| ; CHECK: # %bb.0: |
| ; CHECK-NEXT: stmg %r14, %r15, 112(%r15) |
| ; CHECK-NEXT: .cfi_offset %r14, -48 |
| ; CHECK-NEXT: .cfi_offset %r15, -40 |
| ; CHECK-NEXT: aghi %r15, -160 |
| ; CHECK-NEXT: .cfi_def_cfa_offset 320 |
| ; CHECK-NEXT: chi %r2, 0 |
| ; CHECK-NEXT: jge .LBB7_2 |
| %c = icmp eq i32 %Arg, 0 |
| br i1 %c, label %block0, label %stackmap1 |
| |
| block0: |
| call i64 @foo(i64 0, i64 0) |
| br label %exit |
| |
| stackmap1: |
| call void (i64, i32, ...) @llvm.experimental.stackmap(i64 1, i32 65536) |
| br label %exit |
| |
| exit: |
| ret void |
| } |
| |
| |
| declare void @llvm.experimental.stackmap(i64, i32, ...) |
| declare void @llvm.experimental.patchpoint.void(i64, i32, ptr, i32, ...) |
| declare i64 @llvm.experimental.patchpoint.i64(i64, i32, ptr, i32, ...) |