| ; Test the generated function prologs/epilogs under XPLINK64 on z/OS |
| ; |
| ; RUN: llc < %s -mtriple=s390x-ibm-zos -mcpu=z13 | FileCheck --check-prefixes=CHECK64,CHECK %s |
| |
| ; Test prolog/epilog for non-XPLEAF. |
| |
| ; Small stack frame. |
| ; CHECK-LABEL: func0 |
| ; CHECK64: stmg 6, 7, 1872(4) |
| ; stmg instruction's displacement field must be 2064-dsa_size |
| ; as per ABI |
| ; CHECK64: aghi 4, -192 |
| |
| ; CHECK64: lg 7, 2072(4) |
| ; CHECK64: aghi 4, 192 |
| ; CHECK64: b 2(7) |
| define void @func0() { |
| call i64 (i64) @fun(i64 10) |
| ret void |
| } |
| |
| ; Spill all GPR CSRs |
| ; CHECK-LABEL: func1 |
| ; CHECK64: stmg 6, 15, 1904(4) |
| ; CHECK64: aghi 4, -160 |
| |
| ; CHECK64: lmg 7, 15, 2072(4) |
| ; CHECK64: aghi 4, 160 |
| ; CHECK64: b 2(7) |
| define void @func1(i64 *%ptr) { |
| %l01 = load volatile i64, i64 *%ptr |
| %l02 = load volatile i64, i64 *%ptr |
| %l03 = load volatile i64, i64 *%ptr |
| %l04 = load volatile i64, i64 *%ptr |
| %l05 = load volatile i64, i64 *%ptr |
| %l06 = load volatile i64, i64 *%ptr |
| %l07 = load volatile i64, i64 *%ptr |
| %l08 = load volatile i64, i64 *%ptr |
| %l09 = load volatile i64, i64 *%ptr |
| %l10 = load volatile i64, i64 *%ptr |
| %l11 = load volatile i64, i64 *%ptr |
| %l12 = load volatile i64, i64 *%ptr |
| %l13 = load volatile i64, i64 *%ptr |
| %l14 = load volatile i64, i64 *%ptr |
| %l15 = load volatile i64, i64 *%ptr |
| %add01 = add i64 %l01, %l01 |
| %add02 = add i64 %l02, %add01 |
| %add03 = add i64 %l03, %add02 |
| %add04 = add i64 %l04, %add03 |
| %add05 = add i64 %l05, %add04 |
| %add06 = add i64 %l06, %add05 |
| %add07 = add i64 %l07, %add06 |
| %add08 = add i64 %l08, %add07 |
| %add09 = add i64 %l09, %add08 |
| %add10 = add i64 %l10, %add09 |
| %add11 = add i64 %l11, %add10 |
| %add12 = add i64 %l12, %add11 |
| %add13 = add i64 %l13, %add12 |
| %add14 = add i64 %l14, %add13 |
| %add15 = add i64 %l15, %add14 |
| store volatile i64 %add01, i64 *%ptr |
| store volatile i64 %add02, i64 *%ptr |
| store volatile i64 %add03, i64 *%ptr |
| store volatile i64 %add04, i64 *%ptr |
| store volatile i64 %add05, i64 *%ptr |
| store volatile i64 %add06, i64 *%ptr |
| store volatile i64 %add07, i64 *%ptr |
| store volatile i64 %add08, i64 *%ptr |
| store volatile i64 %add09, i64 *%ptr |
| store volatile i64 %add10, i64 *%ptr |
| store volatile i64 %add11, i64 *%ptr |
| store volatile i64 %add12, i64 *%ptr |
| store volatile i64 %add13, i64 *%ptr |
| store volatile i64 %add14, i64 *%ptr |
| store volatile i64 %add15, i64 *%ptr |
| ret void |
| } |
| |
| |
| ; Spill all FPRs and VRs |
| ; CHECK-LABEL: func2 |
| ; CHECK64: stmg 6, 7, 1744(4) |
| ; CHECK64: aghi 4, -320 |
| ; CHECK64: std 15, {{[0-9]+}}(4) * 8-byte Folded Spill |
| ; CHECK64: std 14, {{[0-9]+}}(4) * 8-byte Folded Spill |
| ; CHECK64: std 13, {{[0-9]+}}(4) * 8-byte Folded Spill |
| ; CHECK64: std 12, {{[0-9]+}}(4) * 8-byte Folded Spill |
| ; CHECK64: std 11, {{[0-9]+}}(4) * 8-byte Folded Spill |
| ; CHECK64: std 10, {{[0-9]+}}(4) * 8-byte Folded Spill |
| ; CHECK64: std 9, {{[0-9]+}}(4) * 8-byte Folded Spill |
| ; CHECK64: std 8, {{[0-9]+}}(4) * 8-byte Folded Spill |
| ; CHECK64: vst 23, {{[0-9]+}}(4), 4 * 16-byte Folded Spill |
| ; CHECK64: vst 22, {{[0-9]+}}(4), 4 * 16-byte Folded Spill |
| ; CHECK64: vst 21, {{[0-9]+}}(4), 4 * 16-byte Folded Spill |
| ; CHECK64: vst 20, {{[0-9]+}}(4), 4 * 16-byte Folded Spill |
| ; CHECK64: vst 19, {{[0-9]+}}(4), 4 * 16-byte Folded Spill |
| ; CHECK64: vst 18, {{[0-9]+}}(4), 4 * 16-byte Folded Spill |
| ; CHECK64: vst 17, {{[0-9]+}}(4), 4 * 16-byte Folded Spill |
| ; CHECK64: vst 16, {{[0-9]+}}(4), 4 * 16-byte Folded Spill |
| |
| ; CHECK64: ld 15, {{[0-9]+}}(4) * 8-byte Folded Reload |
| ; CHECK64: ld 14, {{[0-9]+}}(4) * 8-byte Folded Reload |
| ; CHECK64: ld 13, {{[0-9]+}}(4) * 8-byte Folded Reload |
| ; CHECK64: ld 12, {{[0-9]+}}(4) * 8-byte Folded Reload |
| ; CHECK64: ld 11, {{[0-9]+}}(4) * 8-byte Folded Reload |
| ; CHECK64: ld 10, {{[0-9]+}}(4) * 8-byte Folded Reload |
| ; CHECK64: ld 9, {{[0-9]+}}(4) * 8-byte Folded Reload |
| ; CHECK64: ld 8, {{[0-9]+}}(4) * 8-byte Folded Reload |
| ; CHECK64: vl 23, {{[0-9]+}}(4), 4 * 16-byte Folded Reload |
| ; CHECK64: vl 22, {{[0-9]+}}(4), 4 * 16-byte Folded Reload |
| ; CHECK64: vl 21, {{[0-9]+}}(4), 4 * 16-byte Folded Reload |
| ; CHECK64: vl 20, {{[0-9]+}}(4), 4 * 16-byte Folded Reload |
| ; CHECK64: vl 19, {{[0-9]+}}(4), 4 * 16-byte Folded Reload |
| ; CHECK64: vl 18, {{[0-9]+}}(4), 4 * 16-byte Folded Reload |
| ; CHECK64: vl 17, {{[0-9]+}}(4), 4 * 16-byte Folded Reload |
| ; CHECK64: vl 16, {{[0-9]+}}(4), 4 * 16-byte Folded Reload |
| ; CHECK64: lg 7, 2072(4) |
| ; CHECK64: aghi 4, 320 |
| ; CHECK64: b 2(7) |
| |
| define void @func2(double *%ptr, <2 x i64> *%vec_ptr) { |
| %l00 = load volatile double, double *%ptr |
| %l01 = load volatile double, double *%ptr |
| %l02 = load volatile double, double *%ptr |
| %l03 = load volatile double, double *%ptr |
| %l04 = load volatile double, double *%ptr |
| %l05 = load volatile double, double *%ptr |
| %l06 = load volatile double, double *%ptr |
| %l07 = load volatile double, double *%ptr |
| %l08 = load volatile double, double *%ptr |
| %l09 = load volatile double, double *%ptr |
| %l10 = load volatile double, double *%ptr |
| %l11 = load volatile double, double *%ptr |
| %l12 = load volatile double, double *%ptr |
| %l13 = load volatile double, double *%ptr |
| %l14 = load volatile double, double *%ptr |
| %l15 = load volatile double, double *%ptr |
| %add00 = fadd double %l01, %l00 |
| %add01 = fadd double %l01, %add00 |
| %add02 = fadd double %l02, %add01 |
| %add03 = fadd double %l03, %add02 |
| %add04 = fadd double %l04, %add03 |
| %add05 = fadd double %l05, %add04 |
| %add06 = fadd double %l06, %add05 |
| %add07 = fadd double %l07, %add06 |
| %add08 = fadd double %l08, %add07 |
| %add09 = fadd double %l09, %add08 |
| %add10 = fadd double %l10, %add09 |
| %add11 = fadd double %l11, %add10 |
| %add12 = fadd double %l12, %add11 |
| %add13 = fadd double %l13, %add12 |
| %add14 = fadd double %l14, %add13 |
| %add15 = fadd double %l15, %add14 |
| store volatile double %add00, double *%ptr |
| store volatile double %add01, double *%ptr |
| store volatile double %add02, double *%ptr |
| store volatile double %add03, double *%ptr |
| store volatile double %add04, double *%ptr |
| store volatile double %add05, double *%ptr |
| store volatile double %add06, double *%ptr |
| store volatile double %add07, double *%ptr |
| store volatile double %add08, double *%ptr |
| store volatile double %add09, double *%ptr |
| store volatile double %add10, double *%ptr |
| store volatile double %add11, double *%ptr |
| store volatile double %add12, double *%ptr |
| store volatile double %add13, double *%ptr |
| store volatile double %add14, double *%ptr |
| store volatile double %add15, double *%ptr |
| |
| %v00 = load volatile <2 x i64>, <2 x i64> *%vec_ptr |
| %v01 = load volatile <2 x i64>, <2 x i64> *%vec_ptr |
| %v02 = load volatile <2 x i64>, <2 x i64> *%vec_ptr |
| %v03 = load volatile <2 x i64>, <2 x i64> *%vec_ptr |
| %v04 = load volatile <2 x i64>, <2 x i64> *%vec_ptr |
| %v05 = load volatile <2 x i64>, <2 x i64> *%vec_ptr |
| %v06 = load volatile <2 x i64>, <2 x i64> *%vec_ptr |
| %v07 = load volatile <2 x i64>, <2 x i64> *%vec_ptr |
| %v08 = load volatile <2 x i64>, <2 x i64> *%vec_ptr |
| %v09 = load volatile <2 x i64>, <2 x i64> *%vec_ptr |
| %v10 = load volatile <2 x i64>, <2 x i64> *%vec_ptr |
| %v11 = load volatile <2 x i64>, <2 x i64> *%vec_ptr |
| %v12 = load volatile <2 x i64>, <2 x i64> *%vec_ptr |
| %v13 = load volatile <2 x i64>, <2 x i64> *%vec_ptr |
| %v14 = load volatile <2 x i64>, <2 x i64> *%vec_ptr |
| %v15 = load volatile <2 x i64>, <2 x i64> *%vec_ptr |
| %v16 = load volatile <2 x i64>, <2 x i64> *%vec_ptr |
| %v17 = load volatile <2 x i64>, <2 x i64> *%vec_ptr |
| %v18 = load volatile <2 x i64>, <2 x i64> *%vec_ptr |
| %v19 = load volatile <2 x i64>, <2 x i64> *%vec_ptr |
| %v20 = load volatile <2 x i64>, <2 x i64> *%vec_ptr |
| %v21 = load volatile <2 x i64>, <2 x i64> *%vec_ptr |
| %v22 = load volatile <2 x i64>, <2 x i64> *%vec_ptr |
| %v23 = load volatile <2 x i64>, <2 x i64> *%vec_ptr |
| %v24 = load volatile <2 x i64>, <2 x i64> *%vec_ptr |
| %v25 = load volatile <2 x i64>, <2 x i64> *%vec_ptr |
| %v26 = load volatile <2 x i64>, <2 x i64> *%vec_ptr |
| %v27 = load volatile <2 x i64>, <2 x i64> *%vec_ptr |
| %v28 = load volatile <2 x i64>, <2 x i64> *%vec_ptr |
| %v29 = load volatile <2 x i64>, <2 x i64> *%vec_ptr |
| %v30 = load volatile <2 x i64>, <2 x i64> *%vec_ptr |
| %v31 = load volatile <2 x i64>, <2 x i64> *%vec_ptr |
| %vadd00 = add <2 x i64> %v00, %v00 |
| %vadd01 = add <2 x i64> %v01, %vadd00 |
| %vadd02 = add <2 x i64> %v02, %vadd01 |
| %vadd03 = add <2 x i64> %v03, %vadd02 |
| %vadd04 = add <2 x i64> %v04, %vadd03 |
| %vadd05 = add <2 x i64> %v05, %vadd04 |
| %vadd06 = add <2 x i64> %v06, %vadd05 |
| %vadd07 = add <2 x i64> %v07, %vadd06 |
| %vadd08 = add <2 x i64> %v08, %vadd07 |
| %vadd09 = add <2 x i64> %v09, %vadd08 |
| %vadd10 = add <2 x i64> %v10, %vadd09 |
| %vadd11 = add <2 x i64> %v11, %vadd10 |
| %vadd12 = add <2 x i64> %v12, %vadd11 |
| %vadd13 = add <2 x i64> %v13, %vadd12 |
| %vadd14 = add <2 x i64> %v14, %vadd13 |
| %vadd15 = add <2 x i64> %v15, %vadd14 |
| %vadd16 = add <2 x i64> %v16, %vadd15 |
| %vadd17 = add <2 x i64> %v17, %vadd16 |
| %vadd18 = add <2 x i64> %v18, %vadd17 |
| %vadd19 = add <2 x i64> %v19, %vadd18 |
| %vadd20 = add <2 x i64> %v20, %vadd19 |
| %vadd21 = add <2 x i64> %v21, %vadd20 |
| %vadd22 = add <2 x i64> %v22, %vadd21 |
| %vadd23 = add <2 x i64> %v23, %vadd22 |
| %vadd24 = add <2 x i64> %v24, %vadd23 |
| %vadd25 = add <2 x i64> %v25, %vadd24 |
| %vadd26 = add <2 x i64> %v26, %vadd25 |
| %vadd27 = add <2 x i64> %v27, %vadd26 |
| %vadd28 = add <2 x i64> %v28, %vadd27 |
| %vadd29 = add <2 x i64> %v29, %vadd28 |
| %vadd30 = add <2 x i64> %v30, %vadd29 |
| %vadd31 = add <2 x i64> %v31, %vadd30 |
| store volatile <2 x i64> %vadd00, <2 x i64> *%vec_ptr |
| store volatile <2 x i64> %vadd01, <2 x i64> *%vec_ptr |
| store volatile <2 x i64> %vadd02, <2 x i64> *%vec_ptr |
| store volatile <2 x i64> %vadd03, <2 x i64> *%vec_ptr |
| store volatile <2 x i64> %vadd04, <2 x i64> *%vec_ptr |
| store volatile <2 x i64> %vadd05, <2 x i64> *%vec_ptr |
| store volatile <2 x i64> %vadd06, <2 x i64> *%vec_ptr |
| store volatile <2 x i64> %vadd07, <2 x i64> *%vec_ptr |
| store volatile <2 x i64> %vadd08, <2 x i64> *%vec_ptr |
| store volatile <2 x i64> %vadd09, <2 x i64> *%vec_ptr |
| store volatile <2 x i64> %vadd10, <2 x i64> *%vec_ptr |
| store volatile <2 x i64> %vadd11, <2 x i64> *%vec_ptr |
| store volatile <2 x i64> %vadd12, <2 x i64> *%vec_ptr |
| store volatile <2 x i64> %vadd13, <2 x i64> *%vec_ptr |
| store volatile <2 x i64> %vadd14, <2 x i64> *%vec_ptr |
| store volatile <2 x i64> %vadd15, <2 x i64> *%vec_ptr |
| store volatile <2 x i64> %vadd16, <2 x i64> *%vec_ptr |
| store volatile <2 x i64> %vadd17, <2 x i64> *%vec_ptr |
| store volatile <2 x i64> %vadd18, <2 x i64> *%vec_ptr |
| store volatile <2 x i64> %vadd19, <2 x i64> *%vec_ptr |
| store volatile <2 x i64> %vadd20, <2 x i64> *%vec_ptr |
| store volatile <2 x i64> %vadd21, <2 x i64> *%vec_ptr |
| store volatile <2 x i64> %vadd22, <2 x i64> *%vec_ptr |
| store volatile <2 x i64> %vadd23, <2 x i64> *%vec_ptr |
| store volatile <2 x i64> %vadd24, <2 x i64> *%vec_ptr |
| store volatile <2 x i64> %vadd25, <2 x i64> *%vec_ptr |
| store volatile <2 x i64> %vadd26, <2 x i64> *%vec_ptr |
| store volatile <2 x i64> %vadd27, <2 x i64> *%vec_ptr |
| store volatile <2 x i64> %vadd28, <2 x i64> *%vec_ptr |
| store volatile <2 x i64> %vadd29, <2 x i64> *%vec_ptr |
| store volatile <2 x i64> %vadd30, <2 x i64> *%vec_ptr |
| store volatile <2 x i64> %vadd31, <2 x i64> *%vec_ptr |
| ret void |
| } |
| |
| ; Big stack frame, force the use of agfi before stmg |
| ; despite not requiring stack extension routine. |
| ; CHECK64: agfi 4, -1040768 |
| ; CHECK64: stmg 6, 7, 2064(4) |
| ; CHECK64: agfi 4, 1040768 |
| define void @func3() { |
| %arr = alloca [130070 x i64], align 8 |
| %ptr = bitcast [130070 x i64]* %arr to i8* |
| call i64 (i8*) @fun1(i8* %ptr) |
| ret void |
| } |
| |
| ; Requires the saving of r4 due to variable sized |
| ; object in stack frame. (Eg: VLA) Sets up frame pointer in r8 |
| ; CHECK64: stmg 4, 9, 1856(4) |
| ; CHECK64: aghi 4, -192 |
| ; CHECK64: lgr 8, 4 |
| ; TODO Will change to basr with ADA introduction. |
| ; CHECK64: brasl 7, @@ALCAXP |
| ; CHECK64-NEXT: bcr 0, 3 |
| ; CHECK64: lmg 4, 9, 2048(4) |
| define i64 @func4(i64 %n) { |
| %vla = alloca i64, i64 %n, align 8 |
| %call = call i64 @fun2(i64 %n, i64* nonnull %vla, i64* nonnull %vla) |
| ret i64 %call |
| } |
| |
| ; Require saving of r4 and in addition, a displacement large enough |
| ; to force use of agfi before stmg. |
| ; CHECK64: lgr 0, 4 |
| ; CHECK64: agfi 4, -1040192 |
| ; CHECK64: stmg 4, 9, 2048(4) |
| ; CHECK64: lgr 8, 4 |
| ; TODO Will change to basr with ADA introduction. |
| ; CHECK64: brasl 7, @@ALCAXP |
| ; CHECK64-NEXT: bcr 0, 3 |
| ;; CHECK64: lmg 4, 9, 2048(4) |
| define i64 @func5(i64 %n) { |
| %vla = alloca i64, i64 %n, align 8 |
| %arr = alloca [130000 x i64], align 8 |
| %ptr = bitcast [130000 x i64]* %arr to i64* |
| %call = call i64 @fun2(i64 %n, i64* nonnull %vla, i64* %ptr) |
| ret i64 %call |
| } |
| |
| ; CHECK-LABEL: large_stack |
| ; CHECK64: agfi 4, -1048768 |
| ; CHECK64-NEXT: llgt 3, 1208 |
| ; CHECK64-NEXT: cg 4, 64(3) |
| ; CHECK64-NEXT: jhe |
| ; CHECK64: * %bb.1: |
| ; CHECK64: lg 3, 72(3) |
| ; CHECK64: basr 3, 3 |
| ; CHECK64: stmg 6, 7, 2064(4) |
| define void @large_stack() { |
| %arr = alloca [131072 x i64], align 8 |
| %ptr = bitcast [131072 x i64]* %arr to i8* |
| call i64 (i8*) @fun1(i8* %ptr) |
| ret void |
| } |
| |
| ; CHECK-LABEL: leaf_func |
| ; CHECK-NOT: aghi 4, |
| ; CHECK-NOT: stmg |
| ; CHECK: agr 1, 2 |
| ; CHECK: msgr 1, 3 |
| ; CHECK: aghik 3, 1, -4 |
| ; CHECK-NOT: aghi 4, |
| ; CHECK-NOT: lmg |
| define i64 @leaf_func0(i64 %a, i64 %b, i64 %c) { |
| %n = add i64 %a, %b |
| %m = mul i64 %n, %c |
| %o = sub i64 %m, 4 |
| ret i64 %o |
| } |
| |
| declare i64 @fun(i64 %arg0) |
| declare i64 @fun1(i8* %ptr) |
| declare i64 @fun2(i64 %n, i64* %arr0, i64* %arr1) |