462d5830da
The change implements support of the intrinsics `get_fpmode`, `set_fpmode` and `reset_fpmode` in Global Instruction Selector. Now they are lowered into library function calls. Differential Revision: https://reviews.llvm.org/D158260
77 lines
2.5 KiB
LLVM
77 lines
2.5 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 2
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; RUN: llc -mtriple=aarch64-none-linux-gnu %s -o - | FileCheck --check-prefix=DAG %s
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; RUN: llc -mtriple=aarch64-none-linux-gnu -global-isel %s -o - | FileCheck --check-prefix=GIS %s
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declare i32 @llvm.get.fpmode.i32()
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declare void @llvm.set.fpmode.i32(i32 %fpmode)
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declare void @llvm.reset.fpmode()
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define i32 @func_get_fpmode_soft() #0 {
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; DAG-LABEL: func_get_fpmode_soft:
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; DAG: // %bb.0: // %entry
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; DAG-NEXT: str x30, [sp, #-16]! // 8-byte Folded Spill
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; DAG-NEXT: add x0, sp, #12
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; DAG-NEXT: bl fegetmode
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; DAG-NEXT: ldr w0, [sp, #12]
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; DAG-NEXT: ldr x30, [sp], #16 // 8-byte Folded Reload
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; DAG-NEXT: ret
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;
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; GIS-LABEL: func_get_fpmode_soft:
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; GIS: // %bb.0: // %entry
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; GIS-NEXT: str x30, [sp, #-16]! // 8-byte Folded Spill
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; GIS-NEXT: add x0, sp, #12
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; GIS-NEXT: bl fegetmode
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; GIS-NEXT: ldr w0, [sp, #12]
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; GIS-NEXT: ldr x30, [sp], #16 // 8-byte Folded Reload
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; GIS-NEXT: ret
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entry:
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%fpmode = call i32 @llvm.get.fpmode.i32()
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ret i32 %fpmode
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}
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define void @func_set_fpmode_soft(i32 %fpmode) #0 {
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; DAG-LABEL: func_set_fpmode_soft:
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; DAG: // %bb.0: // %entry
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; DAG-NEXT: str x30, [sp, #-16]! // 8-byte Folded Spill
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; DAG-NEXT: str w0, [sp, #12]
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; DAG-NEXT: add x0, sp, #12
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; DAG-NEXT: bl fesetmode
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; DAG-NEXT: ldr x30, [sp], #16 // 8-byte Folded Reload
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; DAG-NEXT: ret
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;
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; GIS-LABEL: func_set_fpmode_soft:
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; GIS: // %bb.0: // %entry
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; GIS-NEXT: str x30, [sp, #-16]! // 8-byte Folded Spill
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; GIS-NEXT: str w0, [sp, #12]
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; GIS-NEXT: add x0, sp, #12
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; GIS-NEXT: bl fesetmode
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; GIS-NEXT: ldr x30, [sp], #16 // 8-byte Folded Reload
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; GIS-NEXT: ret
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entry:
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call void @llvm.set.fpmode.i32(i32 %fpmode)
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ret void
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}
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define void @func_reset_fpmode_soft() #0 {
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; DAG-LABEL: func_reset_fpmode_soft:
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; DAG: // %bb.0: // %entry
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; DAG-NEXT: str x30, [sp, #-16]! // 8-byte Folded Spill
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; DAG-NEXT: mov x0, #-1 // =0xffffffffffffffff
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; DAG-NEXT: bl fesetmode
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; DAG-NEXT: ldr x30, [sp], #16 // 8-byte Folded Reload
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; DAG-NEXT: ret
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;
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; GIS-LABEL: func_reset_fpmode_soft:
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; GIS: // %bb.0: // %entry
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; GIS-NEXT: str x30, [sp, #-16]! // 8-byte Folded Spill
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; GIS-NEXT: mov x0, #-1 // =0xffffffffffffffff
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; GIS-NEXT: bl fesetmode
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; GIS-NEXT: ldr x30, [sp], #16 // 8-byte Folded Reload
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; GIS-NEXT: ret
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entry:
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call void @llvm.reset.fpmode()
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ret void
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}
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attributes #0 = { nounwind "use-soft-float"="true" }
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