; Test passing variable argument lists in 64-bit calls on z/OS.
; RUN: llc < %s -mtriple=s390x-ibm-zos -mcpu=z10 | FileCheck %s
; RUN: llc < %s -mtriple=s390x-ibm-zos -mcpu=z14 | FileCheck %s -check-prefix=ARCH12
; CHECK-LABEL: call_vararg_double0
; CHECK: llihf 3, 1074118262
; CHECK-NEXT: oilf 3, 3367254360
; CHECK: lghi 1, 1
; CHECK: lghi 2, 2
define i64 @call_vararg_double0() {
entry:
%retval = call i64 (i64, i64, ...) @pass_vararg0(i64 1, i64 2, double 2.718000e+00)
ret i64 %retval
}
; CHECK-LABEL: call_vararg_double1
; CHECK: llihf 0, 1074118262
; CHECK-NEXT: oilf 0, 3367254360
; CHECK: llihf 3, 1074340036
; CHECK-NEXT: oilf 3, 2611340116
; CHECK: lghi 1, 1
; CHECK: lghi 2, 2
; CHECK: stg 0, 2200(4)
define i64 @call_vararg_double1() {
entry:
%retval = call i64 (i64, i64, ...) @pass_vararg0(i64 1, i64 2, double 3.141000e+00, double 2.718000e+00)
ret i64 %retval
}
; CHECK-LABEL: call_vararg_double2
; CHECK-NOT: llihf 0
; CHECK-NOT: oilf 0
; CHECK: llihf 2, 1074118262
; CHECK-NEXT: oilf 2, 3367254360
; CHECK: lghi 1, 8200
define i64 @call_vararg_double2() {
entry:
%retval = call i64 (i64, ...) @pass_vararg2(i64 8200, double 2.718000e+00)
ret i64 %retval
}
; CHECK-LABEL: call_vararg_double3
; CHECK: llihf 0, 1072703839
; CHECK-NEXT: oilf 0, 2861204133
; CHECK: llihf 1, 1074118262
; CHECK-NEXT: oilf 1, 3367254360
; CHECK: llihf 2, 1074340036
; CHECK-NEXT: oilf 2, 2611340116
; CHECK: llihf 3, 1073127358
; CHECK-NEXT: oilf 3, 1992864825
; CHECK: stg 0, 2200(4)
define i64 @call_vararg_double3() {
entry:
%retval = call i64 (...) @pass_vararg3(double 2.718000e+00, double 3.141000e+00, double 1.414000e+00, double 1.010101e+00)
ret i64 %retval
}
; CHECK-LABEL: call_vararg_both0
; CHECK: lgr 2, 1
; CHECK: lgdr 1, 0
define i64 @call_vararg_both0(i64 %arg0, double %arg1) {
%retval = call i64(...) @pass_vararg3(double %arg1, i64 %arg0)
ret i64 %retval
}
; CHECK-LABEL: call_vararg_long_double0
; CHECK: larl 1, @CPI5_0
; CHECK-NEXT: ld 0, 0(1)
; CHECK-NEXT: ld 2, 8(1)
; CHECK-NEXT: lgdr 3, 0
; CHECK: lghi 1, 1
; CHECK: lghi 2, 2
; CHECK: std 0, 2192(4)
; CHECK-NEXT: std 2, 2200(4)
define i64 @call_vararg_long_double0() {
entry:
%retval = call i64 (i64, i64, ...) @pass_vararg0(i64 1, i64 2, fp128 0xLE0FC1518450562CD4000921FB5444261)
ret i64 %retval
}
; CHECK-LABEL: call_vararg_long_double1
; CHECK: lgdr 3, 0
; CHECK: lghi 1, 1
; CHECK: lghi 2, 2
; CHECK: std 0, 2192(4)
; CHECK-NEXT: std 2, 2200(4)
define i64 @call_vararg_long_double1(fp128 %arg0) {
entry:
%retval = call i64 (i64, i64, ...) @pass_vararg0(i64 1, i64 2, fp128 %arg0)
ret i64 %retval
}
; CHECK-LABEL: call_vararg_long_double2
; CHECK: std 4, 2208(4)
; CHECK-NEXT: std 6, 2216(4)
; CHECK: lgdr 3, 0
; CHECK: lghi 1, 1
; CHECK: lghi 2, 2
; CHECK: std 0, 2192(4)
; CHECK-NEXT: std 2, 2200(4)
define i64 @call_vararg_long_double2(fp128 %arg0, fp128 %arg1) {
entry:
%retval = call i64 (i64, i64, ...) @pass_vararg0(i64 1, i64 2, fp128 %arg0, fp128 %arg1)
ret i64 %retval
}
; CHECK-LABEL: call_vararg_long_double3
; CHECK: lgdr 3, 2
; CHECK-NEXT: lgdr 2, 0
define i64 @call_vararg_long_double3(fp128 %arg0) {
entry:
%retval = call i64 (...) @pass_vararg3(fp128 %arg0)
ret i64 %retval
}
; ARCH12-LABEL: call_vec_vararg_test0
; ARCH12: vlgvg 3, 24, 1
; ARCH12: vlgvg 2, 24, 0
; ARCH12: lghi 1, 1
define void @call_vec_vararg_test0(<2 x double> %v) {
%retval = call i64(i64, ...) @pass_vararg2(i64 1, <2 x double> %v)
ret void
}
; ARCH12-LABEL: call_vec_vararg_test1
; ARCH12: larl 1, @CPI10_0
; ARCH12: vl 0, 0(1), 3
; ARCH12: vlgvg 3, 24, 0
; ARCH12: vrepg 2, 0, 1
; ARCH12: vst 25, 2208(4), 3
; ARCH12: vst 24, 2192(4), 3
define void @call_vec_vararg_test1(<4 x i32> %v, <2 x i64> %w) {
%retval = call i64(fp128, ...) @pass_vararg1(fp128 0xLE0FC1518450562CD4000921FB5444261, <4 x i32> %v, <2 x i64> %w)
ret void
}
; ARCH12-LABEL: call_vec_char_vararg_straddle
; ARCH12: vlgvg 3, 24, 0
; ARCH12: lghi 1, 1
; ARCH12: lghi 2, 2
; ARCH12: vst 24, 2192(4), 3
define void @call_vec_char_vararg_straddle(<16 x i8> %v) {
%retval = call i64(i64, i64, ...) @pass_vararg0(i64 1, i64 2, <16 x i8> %v)
ret void
}
; ARCH12-LABEL: call_vec_short_vararg_straddle
; ARCH12: vlgvg 3, 24, 0
; ARCH12: lghi 1, 1
; ARCH12: lghi 2, 2
; ARCH12: vst 24, 2192(4), 3
define void @call_vec_short_vararg_straddle(<8 x i16> %v) {
%retval = call i64(i64, i64, ...) @pass_vararg0(i64 1, i64 2, <8 x i16> %v)
ret void
}
; ARCH12-LABEL: call_vec_int_vararg_straddle
; ARCH12: vlgvg 3, 24, 0
; ARCH12: lghi 1, 1
; ARCH12: lghi 2, 2
; ARCH12: vst 24, 2192(4), 3
define void @call_vec_int_vararg_straddle(<4 x i32> %v) {
%retval = call i64(i64, i64, ...) @pass_vararg0(i64 1, i64 2, <4 x i32> %v)
ret void
}
; ARCH12-LABEL: call_vec_double_vararg_straddle
; ARCH12: vlgvg 3, 24, 0
; ARCH12: lghi 1, 1
; ARCH12: lghi 2, 2
; ARCH12: vst 24, 2192(4), 3
define void @call_vec_double_vararg_straddle(<2 x double> %v) {
%retval = call i64(i64, i64, ...) @pass_vararg0(i64 1, i64 2, <2 x double> %v)
ret void
}
; CHECK-LABEL: call_vararg_integral0
; Since arguments 0, 1, and 2 are already in the correct
; registers, we should have no loads of any sort into
; GPRs 1, 2, and 3.
; CHECK-NOT: lg 1
; CHECK-NOT: lgr 1
; CHECK-NOT: lg 2
; CHECK-NOT: lgr 2
; CHECK-NOT: lg 3
; CHECK-NOT: lgr 3
define i64 @call_vararg_integral0(i32 signext %arg0, i16 signext %arg1, i64 signext %arg2, i8 signext %arg3) {
entry:
%retval = call i64(...) @pass_vararg3(i32 signext %arg0, i16 signext %arg1, i64 signext %arg2, i8 signext %arg3)
ret i64 %retval
}
; CHECK-LABEL: call_vararg_float0
; CHECK: lghi 1, 1
; CHECK: llihf 2, 1073692672
define i64 @call_vararg_float0() {
entry:
%retval = call i64 (i64, ...) @pass_vararg2(i64 1, float 1.953125)
ret i64 %retval
}
; CHECK-LABEL: call_vararg_float1
; CHECK: larl 1, @CPI17_0
; CHECK: le 0, 0(1)
; CHECK: llihf 0, 1073692672
; CHECK: llihh 2, 16384
; CHECK: llihh 3, 16392
; CHECK: stg 0, 2200(4)
define i64 @call_vararg_float1() {
entry:
%retval = call i64 (float, ...) @pass_vararg4(float 1.0, float 2.0, float 3.0, float 1.953125)
ret i64 %retval
}
; Derived from C source:
; #define _VARARG_EXT_
; #include <stdarg.h>
;
; long pass(long x, ...) {
; va_list va;
; va_start(va, x);
; long ret = va_arg(va, long);
; va_end(va);
; return ret;
; }
;
; CHECK-LABEL: pass_vararg:
; CHECK: aghi 4, -160
; CHECK: la 0, 2208(4)
; CHECK: stg 0, 2200(4)
define hidden i64 @pass_vararg(i64 %x, ...) {
entry:
%va = alloca i8*, align 8
%va1 = bitcast i8** %va to i8*
call void @llvm.va_start(i8* %va1)
%argp.cur = load i8*, i8** %va, align 8
%argp.next = getelementptr inbounds i8, i8* %argp.cur, i64 8
store i8* %argp.next, i8** %va, align 8
%0 = bitcast i8* %argp.cur to i64*
%ret = load i64, i64* %0, align 8
%va2 = bitcast i8** %va to i8*
call void @llvm.va_end(i8* %va2)
ret i64 %ret
}
declare void @llvm.va_start(i8*)
declare void @llvm.va_end(i8*)
declare i64 @pass_vararg0(i64 %arg0, i64 %arg1, ...)
declare i64 @pass_vararg1(fp128 %arg0, ...)
declare i64 @pass_vararg2(i64 %arg0, ...)
declare i64 @pass_vararg3(...)
declare i64 @pass_vararg4(float, ...)