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|
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=riscv64 -verify-machineinstrs < %s \
; RUN: | FileCheck -check-prefix=RV64I-FPELIM %s
; RUN: llc -mtriple=riscv64 -verify-machineinstrs -frame-pointer=all < %s \
; RUN: | FileCheck -check-prefix=RV64I-WITHFP %s
; As well as calling convention details, we check that ra and fp are
; consistently stored to fp-8 and fp-16.
; Any tests that would have identical output for some combination of the lp64*
; ABIs belong in calling-conv-*-common.ll. This file contains tests that will
; have different output across those ABIs. i.e. where some arguments would be
; passed according to the floating point ABI.
; TODO: softened float values can be passed anyext.
define i64 @callee_float_in_regs(i64 %a, float %b) nounwind {
; RV64I-FPELIM-LABEL: callee_float_in_regs:
; RV64I-FPELIM: # %bb.0:
; RV64I-FPELIM-NEXT: addi sp, sp, -16
; RV64I-FPELIM-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
; RV64I-FPELIM-NEXT: sd s0, 0(sp) # 8-byte Folded Spill
; RV64I-FPELIM-NEXT: mv s0, a0
; RV64I-FPELIM-NEXT: mv a0, a1
; RV64I-FPELIM-NEXT: call __fixsfdi@plt
; RV64I-FPELIM-NEXT: add a0, s0, a0
; RV64I-FPELIM-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
; RV64I-FPELIM-NEXT: ld s0, 0(sp) # 8-byte Folded Reload
; RV64I-FPELIM-NEXT: addi sp, sp, 16
; RV64I-FPELIM-NEXT: ret
;
; RV64I-WITHFP-LABEL: callee_float_in_regs:
; RV64I-WITHFP: # %bb.0:
; RV64I-WITHFP-NEXT: addi sp, sp, -32
; RV64I-WITHFP-NEXT: sd ra, 24(sp) # 8-byte Folded Spill
; RV64I-WITHFP-NEXT: sd s0, 16(sp) # 8-byte Folded Spill
; RV64I-WITHFP-NEXT: sd s1, 8(sp) # 8-byte Folded Spill
; RV64I-WITHFP-NEXT: addi s0, sp, 32
; RV64I-WITHFP-NEXT: mv s1, a0
; RV64I-WITHFP-NEXT: mv a0, a1
; RV64I-WITHFP-NEXT: call __fixsfdi@plt
; RV64I-WITHFP-NEXT: add a0, s1, a0
; RV64I-WITHFP-NEXT: ld ra, 24(sp) # 8-byte Folded Reload
; RV64I-WITHFP-NEXT: ld s0, 16(sp) # 8-byte Folded Reload
; RV64I-WITHFP-NEXT: ld s1, 8(sp) # 8-byte Folded Reload
; RV64I-WITHFP-NEXT: addi sp, sp, 32
; RV64I-WITHFP-NEXT: ret
%b_fptosi = fptosi float %b to i64
%1 = add i64 %a, %b_fptosi
ret i64 %1
}
define i64 @caller_float_in_regs() nounwind {
; RV64I-FPELIM-LABEL: caller_float_in_regs:
; RV64I-FPELIM: # %bb.0:
; RV64I-FPELIM-NEXT: addi sp, sp, -16
; RV64I-FPELIM-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
; RV64I-FPELIM-NEXT: li a0, 1
; RV64I-FPELIM-NEXT: lui a1, 262144
; RV64I-FPELIM-NEXT: call callee_float_in_regs@plt
; RV64I-FPELIM-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
; RV64I-FPELIM-NEXT: addi sp, sp, 16
; RV64I-FPELIM-NEXT: ret
;
; RV64I-WITHFP-LABEL: caller_float_in_regs:
; RV64I-WITHFP: # %bb.0:
; RV64I-WITHFP-NEXT: addi sp, sp, -16
; RV64I-WITHFP-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
; RV64I-WITHFP-NEXT: sd s0, 0(sp) # 8-byte Folded Spill
; RV64I-WITHFP-NEXT: addi s0, sp, 16
; RV64I-WITHFP-NEXT: li a0, 1
; RV64I-WITHFP-NEXT: lui a1, 262144
; RV64I-WITHFP-NEXT: call callee_float_in_regs@plt
; RV64I-WITHFP-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
; RV64I-WITHFP-NEXT: ld s0, 0(sp) # 8-byte Folded Reload
; RV64I-WITHFP-NEXT: addi sp, sp, 16
; RV64I-WITHFP-NEXT: ret
%1 = call i64 @callee_float_in_regs(i64 1, float 2.0)
ret i64 %1
}
define i64 @callee_float_on_stack(i128 %a, i128 %b, i128 %c, i128 %d, float %e) nounwind {
; RV64I-FPELIM-LABEL: callee_float_on_stack:
; RV64I-FPELIM: # %bb.0:
; RV64I-FPELIM-NEXT: lw a0, 0(sp)
; RV64I-FPELIM-NEXT: ret
;
; RV64I-WITHFP-LABEL: callee_float_on_stack:
; RV64I-WITHFP: # %bb.0:
; RV64I-WITHFP-NEXT: addi sp, sp, -16
; RV64I-WITHFP-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
; RV64I-WITHFP-NEXT: sd s0, 0(sp) # 8-byte Folded Spill
; RV64I-WITHFP-NEXT: addi s0, sp, 16
; RV64I-WITHFP-NEXT: lw a0, 0(s0)
; RV64I-WITHFP-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
; RV64I-WITHFP-NEXT: ld s0, 0(sp) # 8-byte Folded Reload
; RV64I-WITHFP-NEXT: addi sp, sp, 16
; RV64I-WITHFP-NEXT: ret
%1 = trunc i128 %d to i64
%2 = bitcast float %e to i32
%3 = sext i32 %2 to i64
%4 = add i64 %1, %3
ret i64 %3
}
define i64 @caller_float_on_stack() nounwind {
; RV64I-FPELIM-LABEL: caller_float_on_stack:
; RV64I-FPELIM: # %bb.0:
; RV64I-FPELIM-NEXT: addi sp, sp, -16
; RV64I-FPELIM-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
; RV64I-FPELIM-NEXT: lui a1, 264704
; RV64I-FPELIM-NEXT: li a0, 1
; RV64I-FPELIM-NEXT: li a2, 2
; RV64I-FPELIM-NEXT: li a4, 3
; RV64I-FPELIM-NEXT: li a6, 4
; RV64I-FPELIM-NEXT: sd a1, 0(sp)
; RV64I-FPELIM-NEXT: li a1, 0
; RV64I-FPELIM-NEXT: li a3, 0
; RV64I-FPELIM-NEXT: li a5, 0
; RV64I-FPELIM-NEXT: li a7, 0
; RV64I-FPELIM-NEXT: call callee_float_on_stack@plt
; RV64I-FPELIM-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
; RV64I-FPELIM-NEXT: addi sp, sp, 16
; RV64I-FPELIM-NEXT: ret
;
; RV64I-WITHFP-LABEL: caller_float_on_stack:
; RV64I-WITHFP: # %bb.0:
; RV64I-WITHFP-NEXT: addi sp, sp, -32
; RV64I-WITHFP-NEXT: sd ra, 24(sp) # 8-byte Folded Spill
; RV64I-WITHFP-NEXT: sd s0, 16(sp) # 8-byte Folded Spill
; RV64I-WITHFP-NEXT: addi s0, sp, 32
; RV64I-WITHFP-NEXT: lui a1, 264704
; RV64I-WITHFP-NEXT: li a0, 1
; RV64I-WITHFP-NEXT: li a2, 2
; RV64I-WITHFP-NEXT: li a4, 3
; RV64I-WITHFP-NEXT: li a6, 4
; RV64I-WITHFP-NEXT: sd a1, 0(sp)
; RV64I-WITHFP-NEXT: li a1, 0
; RV64I-WITHFP-NEXT: li a3, 0
; RV64I-WITHFP-NEXT: li a5, 0
; RV64I-WITHFP-NEXT: li a7, 0
; RV64I-WITHFP-NEXT: call callee_float_on_stack@plt
; RV64I-WITHFP-NEXT: ld ra, 24(sp) # 8-byte Folded Reload
; RV64I-WITHFP-NEXT: ld s0, 16(sp) # 8-byte Folded Reload
; RV64I-WITHFP-NEXT: addi sp, sp, 32
; RV64I-WITHFP-NEXT: ret
%1 = call i64 @callee_float_on_stack(i128 1, i128 2, i128 3, i128 4, float 5.0)
ret i64 %1
}
define float @callee_tiny_scalar_ret() nounwind {
; RV64I-FPELIM-LABEL: callee_tiny_scalar_ret:
; RV64I-FPELIM: # %bb.0:
; RV64I-FPELIM-NEXT: lui a0, 260096
; RV64I-FPELIM-NEXT: ret
;
; RV64I-WITHFP-LABEL: callee_tiny_scalar_ret:
; RV64I-WITHFP: # %bb.0:
; RV64I-WITHFP-NEXT: addi sp, sp, -16
; RV64I-WITHFP-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
; RV64I-WITHFP-NEXT: sd s0, 0(sp) # 8-byte Folded Spill
; RV64I-WITHFP-NEXT: addi s0, sp, 16
; RV64I-WITHFP-NEXT: lui a0, 260096
; RV64I-WITHFP-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
; RV64I-WITHFP-NEXT: ld s0, 0(sp) # 8-byte Folded Reload
; RV64I-WITHFP-NEXT: addi sp, sp, 16
; RV64I-WITHFP-NEXT: ret
ret float 1.0
}
; The sign extension of the float return is necessary, as softened floats are
; passed anyext.
define i64 @caller_tiny_scalar_ret() nounwind {
; RV64I-FPELIM-LABEL: caller_tiny_scalar_ret:
; RV64I-FPELIM: # %bb.0:
; RV64I-FPELIM-NEXT: addi sp, sp, -16
; RV64I-FPELIM-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
; RV64I-FPELIM-NEXT: call callee_tiny_scalar_ret@plt
; RV64I-FPELIM-NEXT: sext.w a0, a0
; RV64I-FPELIM-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
; RV64I-FPELIM-NEXT: addi sp, sp, 16
; RV64I-FPELIM-NEXT: ret
;
; RV64I-WITHFP-LABEL: caller_tiny_scalar_ret:
; RV64I-WITHFP: # %bb.0:
; RV64I-WITHFP-NEXT: addi sp, sp, -16
; RV64I-WITHFP-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
; RV64I-WITHFP-NEXT: sd s0, 0(sp) # 8-byte Folded Spill
; RV64I-WITHFP-NEXT: addi s0, sp, 16
; RV64I-WITHFP-NEXT: call callee_tiny_scalar_ret@plt
; RV64I-WITHFP-NEXT: sext.w a0, a0
; RV64I-WITHFP-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
; RV64I-WITHFP-NEXT: ld s0, 0(sp) # 8-byte Folded Reload
; RV64I-WITHFP-NEXT: addi sp, sp, 16
; RV64I-WITHFP-NEXT: ret
%1 = call float @callee_tiny_scalar_ret()
%2 = bitcast float %1 to i32
%3 = sext i32 %2 to i64
ret i64 %3
}
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