1 files changed, 122 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/RISCV/float-convert.ll b/llvm/test/CodeGen/RISCV/float-convert.ll
index d6e67cc6a8e..296e9d468fe 100644
--- a/llvm/test/CodeGen/RISCV/float-convert.ll
+++ b/llvm/test/CodeGen/RISCV/float-convert.ll
@@ -1,23 +1,41 @@
 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
 ; RUN: llc -mtriple=riscv32 -mattr=+f -verify-machineinstrs < %s \
 ; RUN:   | FileCheck -check-prefix=RV32IF %s
+; RUN: llc -mtriple=riscv64 -mattr=+f -verify-machineinstrs < %s \
+; RUN:   | FileCheck -check-prefix=RV64IF %s
 
+; For RV64F, fcvt.l.s is semantically equivalent to fcvt.w.s in this case
+; because fptosi will produce poison if the result doesn't fit into an i32.
 define i32 @fcvt_w_s(float %a) nounwind {
 ; RV32IF-LABEL: fcvt_w_s:
 ; RV32IF:       # %bb.0:
 ; RV32IF-NEXT:    fmv.w.x ft0, a0
 ; RV32IF-NEXT:    fcvt.w.s a0, ft0, rtz
 ; RV32IF-NEXT:    ret
+;
+; RV64IF-LABEL: fcvt_w_s:
+; RV64IF:       # %bb.0:
+; RV64IF-NEXT:    fmv.w.x ft0, a0
+; RV64IF-NEXT:    fcvt.l.s a0, ft0, rtz
+; RV64IF-NEXT:    ret
   %1 = fptosi float %a to i32
   ret i32 %1
 }
 
+; For RV64F, fcvt.lu.s is semantically equivalent to fcvt.wu.s in this case
+; because fptoui will produce poison if the result doesn't fit into an i32.
 define i32 @fcvt_wu_s(float %a) nounwind {
 ; RV32IF-LABEL: fcvt_wu_s:
 ; RV32IF:       # %bb.0:
 ; RV32IF-NEXT:    fmv.w.x ft0, a0
 ; RV32IF-NEXT:    fcvt.wu.s a0, ft0, rtz
 ; RV32IF-NEXT:    ret
+;
+; RV64IF-LABEL: fcvt_wu_s:
+; RV64IF:       # %bb.0:
+; RV64IF-NEXT:    fmv.w.x ft0, a0
+; RV64IF-NEXT:    fcvt.lu.s a0, ft0, rtz
+; RV64IF-NEXT:    ret
   %1 = fptoui float %a to i32
   ret i32 %1
 }
@@ -30,6 +48,14 @@ define i32 @fmv_x_w(float %a, float %b) nounwind {
 ; RV32IF-NEXT:    fadd.s ft0, ft1, ft0
 ; RV32IF-NEXT:    fmv.x.w a0, ft0
 ; RV32IF-NEXT:    ret
+;
+; RV64IF-LABEL: fmv_x_w:
+; RV64IF:       # %bb.0:
+; RV64IF-NEXT:    fmv.w.x ft0, a1
+; RV64IF-NEXT:    fmv.w.x ft1, a0
+; RV64IF-NEXT:    fadd.s ft0, ft1, ft0
+; RV64IF-NEXT:    fmv.x.w a0, ft0
+; RV64IF-NEXT:    ret
 ; Ensure fmv.x.w is generated even for a soft float calling convention
   %1 = fadd float %a, %b
   %2 = bitcast float %1 to i32
@@ -42,6 +68,12 @@ define float @fcvt_s_w(i32 %a) nounwind {
 ; RV32IF-NEXT:    fcvt.s.w ft0, a0
 ; RV32IF-NEXT:    fmv.x.w a0, ft0
 ; RV32IF-NEXT:    ret
+;
+; RV64IF-LABEL: fcvt_s_w:
+; RV64IF:       # %bb.0:
+; RV64IF-NEXT:    fcvt.s.w ft0, a0
+; RV64IF-NEXT:    fmv.x.w a0, ft0
+; RV64IF-NEXT:    ret
   %1 = sitofp i32 %a to float
   ret float %1
 }
@@ -52,6 +84,12 @@ define float @fcvt_s_wu(i32 %a) nounwind {
 ; RV32IF-NEXT:    fcvt.s.wu ft0, a0
 ; RV32IF-NEXT:    fmv.x.w a0, ft0
 ; RV32IF-NEXT:    ret
+;
+; RV64IF-LABEL: fcvt_s_wu:
+; RV64IF:       # %bb.0:
+; RV64IF-NEXT:    fcvt.s.wu ft0, a0
+; RV64IF-NEXT:    fmv.x.w a0, ft0
+; RV64IF-NEXT:    ret
   %1 = uitofp i32 %a to float
   ret float %1
 }
@@ -64,9 +102,93 @@ define float @fmv_w_x(i32 %a, i32 %b) nounwind {
 ; RV32IF-NEXT:    fadd.s ft0, ft1, ft0
 ; RV32IF-NEXT:    fmv.x.w a0, ft0
 ; RV32IF-NEXT:    ret
+;
+; RV64IF-LABEL: fmv_w_x:
+; RV64IF:       # %bb.0:
+; RV64IF-NEXT:    fmv.w.x ft0, a1
+; RV64IF-NEXT:    fmv.w.x ft1, a0
+; RV64IF-NEXT:    fadd.s ft0, ft1, ft0
+; RV64IF-NEXT:    fmv.x.w a0, ft0
+; RV64IF-NEXT:    ret
 ; Ensure fmv.w.x is generated even for a soft float calling convention
   %1 = bitcast i32 %a to float
   %2 = bitcast i32 %b to float
   %3 = fadd float %1, %2
   ret float %3
 }
+
+define i64 @fcvt_l_s(float %a) nounwind {
+; RV32IF-LABEL: fcvt_l_s:
+; RV32IF:       # %bb.0:
+; RV32IF-NEXT:    addi sp, sp, -16
+; RV32IF-NEXT:    sw ra, 12(sp)
+; RV32IF-NEXT:    call __fixsfdi
+; RV32IF-NEXT:    lw ra, 12(sp)
+; RV32IF-NEXT:    addi sp, sp, 16
+; RV32IF-NEXT:    ret
+;
+; RV64IF-LABEL: fcvt_l_s:
+; RV64IF:       # %bb.0:
+; RV64IF-NEXT:    fmv.w.x ft0, a0
+; RV64IF-NEXT:    fcvt.l.s a0, ft0, rtz
+; RV64IF-NEXT:    ret
+  %1 = fptosi float %a to i64
+  ret i64 %1
+}
+
+define i64 @fcvt_lu_s(float %a) nounwind {
+; RV32IF-LABEL: fcvt_lu_s:
+; RV32IF:       # %bb.0:
+; RV32IF-NEXT:    addi sp, sp, -16
+; RV32IF-NEXT:    sw ra, 12(sp)
+; RV32IF-NEXT:    call __fixunssfdi
+; RV32IF-NEXT:    lw ra, 12(sp)
+; RV32IF-NEXT:    addi sp, sp, 16
+; RV32IF-NEXT:    ret
+;
+; RV64IF-LABEL: fcvt_lu_s:
+; RV64IF:       # %bb.0:
+; RV64IF-NEXT:    fmv.w.x ft0, a0
+; RV64IF-NEXT:    fcvt.lu.s a0, ft0, rtz
+; RV64IF-NEXT:    ret
+  %1 = fptoui float %a to i64
+  ret i64 %1
+}
+
+define float @fcvt_s_l(i64 %a) nounwind {
+; RV32IF-LABEL: fcvt_s_l:
+; RV32IF:       # %bb.0:
+; RV32IF-NEXT:    addi sp, sp, -16
+; RV32IF-NEXT:    sw ra, 12(sp)
+; RV32IF-NEXT:    call __floatdisf
+; RV32IF-NEXT:    lw ra, 12(sp)
+; RV32IF-NEXT:    addi sp, sp, 16
+; RV32IF-NEXT:    ret
+;
+; RV64IF-LABEL: fcvt_s_l:
+; RV64IF:       # %bb.0:
+; RV64IF-NEXT:    fcvt.s.l ft0, a0
+; RV64IF-NEXT:    fmv.x.w a0, ft0
+; RV64IF-NEXT:    ret
+  %1 = sitofp i64 %a to float
+  ret float %1
+}
+
+define float @fcvt_s_lu(i64 %a) nounwind {
+; RV32IF-LABEL: fcvt_s_lu:
+; RV32IF:       # %bb.0:
+; RV32IF-NEXT:    addi sp, sp, -16
+; RV32IF-NEXT:    sw ra, 12(sp)
+; RV32IF-NEXT:    call __floatundisf
+; RV32IF-NEXT:    lw ra, 12(sp)
+; RV32IF-NEXT:    addi sp, sp, 16
+; RV32IF-NEXT:    ret
+;
+; RV64IF-LABEL: fcvt_s_lu:
+; RV64IF:       # %bb.0:
+; RV64IF-NEXT:    fcvt.s.lu ft0, a0
+; RV64IF-NEXT:    fmv.x.w a0, ft0
+; RV64IF-NEXT:    ret
+  %1 = uitofp i64 %a to float
+  ret float %1
+}